How to investigate
①Planning
•Decide on a scientific problem to investigate
For example， a student named Mary has decided to research into how quickly sugar dissolves（溶解） in water．
•Write down your hypothesis
You may already have an idea of what you expect to happen in your investigation． This idea is called your hypothesis． It may not be right! It is just an idea， though it may be based on work in science which you have done before． The aim of your investigation is to test your idea．
•Decide what variables（变量） you are dealing with
Things like temperature， size， weight， and colour are called variables． Variables are things you can
measure（测量）．
In your investigation， you have to decide what the variables are， which ones you will keep fixed， and which you will change．
You need to change just one variable at a time． If lots of variables change at once． it won't be a good test．
•Decide what equipment you need， and in what order you will do things
•Prepare tables for your results
②Getting your evidence（数据）
•Make your measurements， and record your results
③Reaching conclusions
•Look for patterns in your results
•Present your conclusions
What links（关联） did you find between any of the variables？ How would you explain these links？
④Checking your findings
•Compare your conclusions and hypothesis
Do your results support your idea？
（1）What does the underlined word "hypothesis" most probably mean？
A． reason
B． result
C． method
D． guess
（2）In Mary's investigation， which of the following about the variables is true？
A． She can only change one variable at a time．
B． Some of the variables can't be measured．
C． Her weight and age can be the variables．
D． The temperature of water cannot be a variable．
（3）What is the passage mainly about？
A． How to do a scientific research．
B． How to explain a scientific finding．
C． How to deal with a chemistry problem．
D． How to understand some chemistry knowledge．
Traditional food such as Guilin Rice Noodles，Snail Rice Noodles，Rolled Rice Noodles（卷筒粉）can be found around most streets of Guangxi，which is in South Central China.
The famous snack Snail Rice Noodles is also called luosifen in Chinese.Luosifen is usually sold at roadside stands（路边摊）in night market in Guangxi.It is cooked easily and tastes good!The dish is made up of rice noodles boiled and served in soup made from river snails and pork bones which are cooked for hours.
The food was listed as part of Liuzhou's intangible cultural heritage（非物质文化遗产）in 2008 and became popular after being introduced in the program A bite of China（舌尖上的中国）in 2012.
Since then，luosifen restaurants have developed quickly across the country.Many restaurants have been set up in Beijing，Shanghai，Hong Kong.It is becoming a popular snack at home and abroad.It's said that 28.4 million bags of luosifen were sold on Taobao last year，becoming the most popular snack in the online market.It was also one of the best﹣selling foods during COVID﹣19 outbreak（爆发） in China.
Besides the traditional export （出口）markets，including the US，Australia，France，the food has also been sent to new markets such as Singapore and New Zealand.
（1）What kind of food was NOT mentioned in the article？
A.Lemon Duck.
B.Guilin Rice Noodles.
C.Snail Rice Noodles.
D.Rolled Rice Noodles.
（2）Luosifen restaurants have developed quickly across the country since the year .
A.2008
B.2012
C.2019
D.2021
（3）Why was luosifen one of the best﹣selling foods during COVID﹣19 outbreak in China？
A.Because it could help to fight the COVID﹣19.
B.Because we wouldn't make luosifen any more.
C.Because it could bring good luck to us Chinese.
D.Because it was very convenient and delicious.
（4）Which of the following countries is the new market for selling luosifen according to the article？
A.US.
B.Australia.
C.France.
D.New Zealand.
Many years ago，a French naturalist，Comte de Buffon，wrote some books about natural history．The books were a great success even though some critics（批评家）did not like them．
Thomas Jefferson did not like what Comte de Buffon had said about the natural wonders（奇观）of the New World．It seemed to Jefferson that Comte de Buffon had spoken of natural wonders in America as if（好像）they were unimportant．
This troubled Thomas Jefferson．He was also a naturalist，as well as a farmer，an inventor，a historian，a writer and a politician（政治家）．He had seen the natural wonders of Europe．To him，they were no more important than those of the New World．
In 1788，Thomas Jefferson wrote about his home state，Virginia．While writing，he thought of its natural beauty and then of the words of Comte de Buffon．At that moment，Jefferson created a new word﹣belittle．He said，"Comte de Buffon believes that nature belittles her productions on this side of the Atlantic（大西洋）．"
Noah Webster，the American word expert，liked this word．He put it in the English language dictionary in 1806，"Belittle﹣to make small，unimportant．"
Americans had already accepted Jefferson's word and started to use it．In 1797，the Independent Chronicle（独立纪事报）used the word to describe a politician the paper supported．"It is an honorable man，"the paper wrote，"so let the opposition try to belittle him as much as they please．"
In 1872，a famous American word expert decided that the time had come to kill this word．He said，"Belittle shouldn't become English．And more critical writers of America，like those of Britain，feel no need of it．"
This expert failed to kill the word．Today，belittle is used where the English language is spoken．
53．Thomas Jefferson was NOT a ．
A．naturalist B．historian C．politician D．musician
54．We can infer（推断）that Jefferson created the word"belittle"out of his ．
A．anger B．excitement C．kindness D．responsibility
55．What can we know about the word"belittle"from the passage？
A．It has already disappeared from the English language．
B．It had been used before it was put in the English language dictionary．
C．It is used to describe natural wonders now．
D．An American politician decided to kill this word in 1872．
56．What's the passage mainly about？
A．How the word"belittle"came into being．
B．The argument about natural wonders．
C．Every word has a long history behind．
D．Noah Webster supported Jefferson's idea．
The Millennial Trains Project is a non﹣profit （非营利性的） organization that makes it possible for young people to take part in creative projects． The organization leads crowdfunded（众筹的） train journeys．These journeys provide young people with the chance to help different communities． The organization has already completed two journeys． Twenty﹣four people are now getting ready to be a part of the third．
To get a place on the train， each person has to raise﹩5，000 and have an idea for a project． At each stop， they get off the train to explore a different town， city， or wherever their projects take them．
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Amy is planning to visit bookshops and libraries． She wants to find out what they are doing to encourage more people to read， and what technology they are using．She also wants to know if they are using social media （媒体） to connect with people．
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Tom wants to make a difference to the education system． He knows that universities are becoming more and more expensive each year， and that many people think higher education is no longer affordable． Over the next 10 days he is visiting seven universities． He wants to see what they are doing to meet these challenges．
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Jenny's project is natural disasters．At each stop，she is going to interview local leaders， workers， and computer game designers．She then plans to create a game that will help people prepare for disasters．She believes people are more likely to remember something important when the information is fun．
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These 24 people are strangers now， but not for long． The next week is going to be a life﹣changing learning experience for many．
回答下面5个问题，每题答案不超过5个词．
（1）Who can get the chance to take part in the projects？
（2）How many journeys are mentioned in Paragraph 1？
（3）Where is Amy going to visit？
（4）How will Jenny help people prepare for disasters？
（5）What do you think of the Millennial Trains Project？
Tea culture is varied in different countries by the way tea is made and drunk， and by the places for tea drinking． How to make tea may be different． According to the ways of making tea， tea is classified （分类） into white tea， green tea，black tea， etc． And how to prepare tea may be different， too． In Tibet， tea is commonly boiled （煮） with salt and butter （黄油）． People may drink tea at home or in public， for example， at tea houses．
As part of culture， tea has a relationship with history， health， education， communication and so on． It is commonly used at social activities． For example， afternoon tea is a British custom． Families or friends can communicate with each other while having afternoon tea．
Tea has remained a way of daily life in China and drinking tea has a lot of advantages． It makes people less tired， clears heat in the human body and helps people lose weight．
Chinese people are good at using tea to make other things delicious． Tea， originally （最初） served as a medicine in ancient times， is now not just a kind of drink， but also excellent seasoning （调味品）． Here are two delicious dishes made with tea：
Tea Eggs： You can find them cooked and sold in street markets in almost every city in China．
Dragon Well Tea Shrimp （龙井虾仁）： It's one of the most well﹣known dishes in Hangzhou．
Before you drink tea， please check the following tips：
◆Drink tea hot．
◆The best time to drink is in between meals． It is bad for your stomach if you drink tea just before meals， during meals or soon after meals．
◆Do not drink too much strong tea．
（1）Tea has no relationship with as part of culture according to the passage．
A． history
B． health
C． education
D． sports
（2）Afternoon tea in Britain is a according to the passage．
A． way of communication
B． hobby
C． game
D． weekend activity
（3）In ancient China， tea was originally served as according to the passage．
A． a medicine
B． a drink
C． seasoning
D． a dish
（4）The best time to drink tea is according to the passage．
A． just before meals
B． during meals
C． soon after meals
D． in between meals
（5）The passage doesn't mention ．
A． ways of making tea
B． places to drink tea
C． tools for drinking tea
D． advantages of drinking tea
In China，a host usually serves a visiting guest a cup of tea first when he enters his house.It is a traditional custom in China.But do you know how to serve a cup of tea to a visiting guest？Well，in different places，the ways of serving tea are different.
In Jiangsu and Zhejiang provinces，a clay cup is usually used to brew（冲泡）Longjing，Biluochun，Maojian or just green tea.Chrysanthemum tea is sometimes used in the hot summer season to reduce the hot from outside.
Serving a cup of tea is a very popular custom in the North China cities.In the colder north﹣eastern provinces，the hosts would provide warm black tea with sugar for their guests.
In some coastalprovinces such as Guangdong Province and Fujian Province，a pot of Oolong tea or Pu﹣er tea is the usual treat.
Serving tea to guests is a common practice in China.However，different tea is used in different places.In Inner Mongolia（内蒙古），a guest is usually treated with milky tea.In the Jingpo family，you would be given baked tea （tea in water and baked in an oven to be made hot）.
（1）What kind of tea sets should be used to brew Longjing？
| A． |
A glass cup. |
| B． |
A paper cup. |
| C． |
A plastic cup. |
| D． |
A clay cup. |
（2）Which kind of tea can make people feel cool in hot summer？
| A． |
Oolong tea. |
| B． |
Pu﹣er tea. |
| C． |
Chrysanthemum tea. |
| D． |
Milky tea. |
（3）When you are visiting a friend in ，you might be offered warm black tea with sugar.
| A． |
Suzhou |
| B． |
Changchun |
| C． |
Hangzhou |
| D． |
Baotou |
（4）What does the underlined word "coastal" in Paragraph 4 mean？
| A． |
内陆的. |
| B． |
边境的. |
| C． |
沿海的. |
| D． |
沿河的. |
（5）The passage is mainly about .
| A． |
the ways of serving tea in China |
| B． |
the different kinds of tea in China |
| C． |
the ways of drinking tea in China |
| D． |
the reasons of serving tea in China |
On the fourth Sunday of every November，most Americans get together around the dinner table to celebrate Thanksgiving．Special traditions in the US have been around for many years．（1） These are four popular Thanksgiving traditions and how they started．
（2） The first Thanksgiving meal was in the autumn of 1621 when the first travelers from England celebrated their first harvest （收获）．But it wasn't made into an official （官方的）holiday until 1863．The first large meal had turkey，fruits and vegetables，which are still common today．
（3） Historians say the first travelers invited Native Americans （美洲印第安人）to the meal to thank them for teaching them how to grow food．Today at the large meal，friends and family will also say what they are most thankful for．
（4） The parade （游行）includes very large balloons that look like cartoon characters and beautiful floats （花车）that carry famous people．There are also many musical performances to watch．This parade started in 1924，and today over 44 million people watch it on TV or in New York City．
（5） People started to watch football on Thanksgiving a few years after the day
became an official holiday．Today，the National Football League takes advantage of this popularity and hosts three NFL games every Thanksgiving．
根据短文内容，从方框中选出五个句子填入文中空缺处，使短文内容完整正确．
A．Giving thanks is what the holiday is all about．
B．American football is something people both watch and play with their family on Turkey Day．
C．However，some people don't always stop to think about where the traditions came from．
D．Here is one way to make turkey for a Thanksgiving dinner．
E．A large meal is the important event every Thanksgiving．
F．Every year，there is a Macy's Thanksgiving Day Parade in New York City．
The Chinese kite is a symbol of the Chinese handicraft （手工艺品）． Flying a kite is a very popular activity in China． In spring， large numbers of people gather in the squares or parks and fly beautiful kites there．
A philosopher （哲学家） called Mozi was said to be the inventor of the Chinese kite． His invention had the bird's name of "Yuan"， a kind of bird of the hawk （鹰） family with a long tail． He made the kite out of wood． Later， his student Lu Ban improved it and made the kite out of bam boo．
With the development of papermaking， paper was introduced into the kite﹣ making． The kite got the name "Zhi Yuan"， as "Zhi" in Chinese means paper． And during the Five Dynasties period， people tied the bamboo whistle （哨子） to the kite． When the kite was flying， the airflow （气流）
could make the whistle sound like Guzheng playing． So the kite carried the name "Fengzheng"．
From then on， making and playing the kite became very popular in Weifang， Shandong Province． Every year in spring， when the weather became warm， almost every family went out to fly the kite and have a picnic on sunny and windy days． It was an exciting folk activity and a good time to display various beautiful kites． At the same time， they also enjoyed the warm weather and fresh air． The tradition has been well kept until today and has become the world﹣ famous Weifang International Kite Festival， which is held from 20th to 25th in April every year．
Flying a kite in spring does people much good． For example， it is a good way to reduce the backache （背痛）． Besides， when people fly a kite， it can help them forget their stressful （压力重的） situations and reconnect （再连接） them to nature．
（1）From the second paragraph， we can know that "Yuan" is ．
A． a bird's name
B． a kind of shape
C． a symbol of stress
D． an inventor's name
（2）How long does Weifang International Kite Festival last every year？
A．5 days．
B．6 days．
C．7 days．
D． 8 days．
（3）What is the last paragraph mainly about？
A． A lot of ways of making kites．
B． Some advantages of flying kites．
C． The dynasties of making kites．
D． The good places of flying kites．
阅读F面短文，从每题所给的A.B.C 三个选项中选出最佳选项回答问题成完成句子。
Some children cannot wait to grow up.Because once you become an adult you are free to make your own decisions.More importantly you can do all those things that you cannot do now because you are too young.So the question is 'At what age do you really become an adult？' Well ，people become adults at different ages in different places.
In Australia the 18th birthday is a very important event for young Australians because it means they can do almost anything they want.They can vote （选举），learn to drive a car ，get married，join the army and even buy their own houses.Even if they can do all these things，most Australians have to wait until their 21st birthday to really celebrate becoming an adult.This is the traditional adult age in Australia and the USA and the UK.
Even though 21 is the traditional adult age in many English﹣speaking countries the law nowadays is different in each country.In the UK you can join the army at 16 and even get married at 16 if your parents allow.Young people in the UK can learn to drive a car at 17，although they have to wait until they are 18 to vote.
In China ，you can vote and learn to drive a car when you are 18，but if you want to get married，women have to wait until they are 18 and men until they are 22.Chinese people celebrate important birthdays every 10 years﹣﹣so when young people turn 20，they can expect a big party!
No matter what age you are，becoming an adult is really about learning how to be independent and responsible（负责任的）.Once you are finally able to take care of yourselves and make your own decisions，then you can say that you are truly all grown﹣ups.
（1）Some children cannot wait to grow up because .
A.they hope to drive a car
B.they can decide to do things freely
C.they can celebrate birthdays
（2）The underlined word" adult" means .
A.grown﹣up
B.kid
C.elder
（3）Which is TRUE according to the passage？
A.In the UK，people can drive at 17.
B.In China，men can get married at 18.
C.In Australia，people can vole at 16.
（4）What does the last paragraph tell us？
A.When people celebrate their 18th birthday，they become adults
B.When people turn 20，they should take care of themselves.
C.A true grown﹣up is independent and responsible.
（5）What is the main idea of the passage？
A.Why some children can' t wait to grow up.
B.People become adults at different ages in different paces.
C.What people can do at different ages.
Is there something in your community that could be changed？Is there a person in your neighborhood who could offer help？If If you're hoping for someone to make a difference，that someone could be you!
Volunteering your time is a great way to make a difference in your community.And you'll feel good about doing something that helps people or improves the places around you.
This past summer，my friends and I noticed how messy our neighborhood park was.We wanted to be different.We worked with our parents and teachers to clean up the park，We had a great time making the park even better than before，and now the whole neighborhood is able to share and enjoy it again.
Maybe cleaning up a park isn't your choice，though.No problem!You can turn anything that matters to you into a volunteer project.Do you like playing chess reading，or spending time with your pet？You can volunteer to do what you love to do.For example，you could help at an old people's center，simply by talking or playing games with them to make their days better.If you re great at math or English.you could volunteer to be a homework helper at your school.You're always needed to walk dogs or play with cats，Or you can collect things for homeless people，such as soap and toothbrushes.
You see，there is something for everyone.Whatever you do as a volunteer your time will be enjoyed and that always feels good.Kids everywhere are making a difference by volunteering.You can，too!
（1）The passage is mainly written for .
| A． |
kids |
| B． |
parents |
| C． |
teachers |
| D． |
neighbors |
（2）Last summer the writer volunteered to .
| A． |
walk dogs |
| B． |
teach pupils math |
| C． |
talk with the old |
| D． |
clean up the park |
（3）The main idea of Paragraph 4 is that .
| A． |
collecting things has a lot of fun |
| B． |
cleaning up a park isn't your choice |
| C． |
the old people always need help |
| D． |
anything can become a volunteer job |
（4）We can infer （推断）that the writer is full of when writing this passage.
| A． |
thanks |
| B． |
hope |
| C． |
surprise |
| D． |
worries |
Flamenco is very popular in southern Spain.It begins with guitar music and clapping（击掌）and then dancers join the performance.Sometimes a woman dances alone and sometimes she dances with a man.The woman always wears a long，colorful dress.She moves her arms and hands slowly but her feet move in fast difficult steps.The man often wears black.Both dancers click their shoes on the floor when they dance around each other.
Cossack dances are from Russia and Ukraine.They are very energetic — some are more like gymnastics than dancing!Dancers have to be very fit because they jump very high and kick their legs up and down.They often jump over swords（剑）.The movements are similar to traditional Cossack activities，for example，sword fighting and getting on and off horses.
Limbo dancing is first from West Africa but today it is an important part of celebrations in the Caribbean.Young people have to dance under a pole（杆）.The pole is often on fire and the dancer mustn't touch it!After a successful "limbo"，they put the pole lower and do it again.Some dancers can dance under a pole just twenty centimeters off the ground!
Mask（面具）dances are important for the Dogon people in Mali.Each village makes different masks.They are often huge and colorful.There are masks of people，monsters or local animals like crocodiles and monkeys.Mask dancers are always men and they dance to the sound of drums for hours after the death of a person in the village.Today，Dogon villagers also perform the dances for tourists.
（1）What do we know about flamenco dancing？
A.Dancers begin performing before the guitar music starts.
B.A woman dancer often wears a long black dress.
C.A woman dancer moves her hands and feet at different speeds.
D.Dancers clap loudly while moving around each other.
（2）What does the underlined word "gymnastics " in Paragraph 2 refer to？
A.A play.
B.A sport.
C.A celebration.
D.A show.
（3）Which of the following is limbo dancing？
A.
B.
C.
D.
（4）What is the best title for the text？
A.Dance Jumps and Moves
B.Dances for Different Ages
C.Dance Music and Clothing
D.Dances from Around the World
Which country grows the most tea？The answer is India.It grows three times as much as China.Which country drinks the most tea？It's neither China nor Japan.It's Great Britain.
In the wild，tea plants may be 9 meters tall.But a plant grown for market is pruned.Pruning keeps the plant only 0.9 or 1.2 meters tall.This is an easy height for tea picking.Only the two top leaves and bud（芽）of each new shoot are picked.So to make money，tea plantations （种植园） must be huge.
In general，there are two kinds of tea：black tea and green tea.Black tea is fermented （发酵）.In the process，the tea loses nearly all of its healthy parts.Green tea is steamed （蒸） right after the leaves are picked.Green tea keeps its healthy parts.For example，it may prevent heart illness.
How did we get tea bags？The answer：by accident.Tea businessmen used to send samples（样品）in tin（锡）boxes.This was very expensive.One businessman thought of a cheaper way.He sent samples in small silk bags.Customers would open the bag.They would make tea as usual.One customer put the bag into a pot.Then he just poured hot water over it.And the tea bag was born.
Shen Nong was the first to drink tea.He was a Chinese emperor.This was about 2737 B.C.Shen drank several cups of hot water daily.One day something happened.Leaves from a wild tea tree fell into the hot water pot.The next cup was poured.The water was now colored.Shen tasted it.He liked it.He drank it all.Shen was proud of his new drink.He served it to his guests.Word spread.People thought this way：tea is good enough for the Emperor，so it must be good enough for the people.Tea became the drink of China.
（1）The writer starts the passage by .
| A． |
telling an interesting story |
| B． |
comparing some information |
| C． |
giving several useful suggestions |
（2）In Paragraph Two，the underlined word " pruned" means " " in Chinese.
| A． |
删除 |
| B． |
采摘 |
| C． |
修剪 |
（3）After reading the passage，it seems clear that .
| A． |
tea and tea bags were invented by accident |
| B． |
black tea is healthier than green tea |
| C． |
tea is better for you than any other drink |
（4）The passage mainly tells us .
| A． |
the popularity of tea bags |
| B． |
the ways of making green tea and black tea |
| C． |
the discovery and development of tea |
If you walk through a park in the morning or in the evening，you might see a lot of people doing these slow and beautiful movements— Carry the tiger over the mountain and White crane spreads its wings.In fact，they are doing Taichi.
Taichi is an ancient martial art（武术）.It is a common kind of exercise in China.More than 100 million people in over 150 countries practice Taichi at present.Recently UNESCO（联合国教科文组织） has added Taichi to its Intangible Cultural Heritage List（非物质文化遗产名录）.Many taichi fans were happy to hear of it. "This will make taichi more popular around the world.Hopefully，more people will become healthier by practicing it." said Chen Bin.He is a Taichi master from the village of Chenjiagou，Henan Province.This village is the birthplace of Chen﹣style Taichi.
It's true that doing Taichi is good for our health.It can make us walk and move more freely，and it can also make us stronger.During slow movements，we can focus on （专注） our hands and feet.We can control them better.Slow movements also help us to take deep and long breaths.
Taichi also focuses on the harmony（和谐） between yin（阴） and yang（阳）.It shows how the ancient Chinese people saw the world.The world is full of yin and yang：dark and light，soft and hard，female and male.But they don't oppose（对立） each other absolutely（绝对地）.As we see in the picture，a white spot is in the black area and a black spot is in the white area.After a dark night，the sun will rise.Leaves fall in autumn but grow in spring.Everything keeps changing — that is how we should see the world.
Taichi carries traditional Chinese philosophy（哲学），such as being in harmony with nature and using softness to beat hardness.It has become a symbol of Chinese culture.
（1）How many people practice Taichi in the world now？
A.About 10 million.
B.Less than 150 thousand.
C.At most 100 thousand.
D.More than 100 million.
（2）Which of the following words can best describe the movements of Taichi？
A.Slow and beautiful.
B.Slow and exciting.
C.Fast and free.
D.Strong and tiring.
（3）Why has Taichi been added to Intangible Cultural Heritage List recently？
A.Because it is a symbol of China culture.
B.Because it is from the village of Chenjiagou.
C.Because it can make us walk more freely.
D.Because it can use softness to beat hardness.
（4）What is the author's purpose in writing the passage？
A.To ask people to do Taichi in their free time.
B.To introduce an ancient martial art—taichi.
C.To teach people how to do Taichi correctly.
D.To explain why Taichi is good for our health
In Chengdu， tea culture has developed into the Chengdu﹣featured （特色的） tea house culture．There is a saying about Chengdu tea houses ：You could see more tea houses than sunny days． Why can the tea house Chengdu catch so much eyesight？It is because of their many different functions （功能）： for relaxing ，meetings，as well as entertainment．
Chengdu tea houses are often decorated （装饰） with bamboo desks and bamboo chairs Chengdu people love tea houses， because they love chatting They often gather together in a crowded tea house， and drink tea when chatting In their free time，they often have a cup of tea and cake， watch actors performing traditional arts， talk and laugh with people in the tea house， which could be true joy of life．
The soft wind is fled with tea's smell． The teas they use usually jasmine green teas，Dragon Well，and Biluochun． They use northern Gaiwan as tea sets （larger than Gongfu Gaiwan）．Gaiwan is made up of three parts： the lid， the cup and the Saucer （茶碟）．When the tea service master pours water into the Gaiwan，you will see the water filling from the air into Gaiwan ，with a lively sound．In a moment， water stops．Then look at the Gaiwan． The water in it is just right at the level of the Gaiwan's mouth， with a simple drip （水满）on the desk．This is a unique （独特的）skill，as well as an art．
No matter where you are in Chengdu， in a quiet park or in a busy street， you can see those featured tea houses．They have fair price and good service． People can stay there for half a day，having only a cup of tea and little snacks． In the talks of friends and neighbors， the colorful tea culture of Sichuan is fully expressed．
请务必将以下小题的答案写在相应位置!
（1）What are the functions of Chengdu tea houses？
（2）What are the desks and chairs in Chengdu tea houses made of？
（3）What's the difference between northern Gaiwan and Gongfu Galiwan？
（4）Who has the unique skill of pouring water in the tea houses？
（5）What's the passage mainly about？
In 1845， a deadly disease struck the farms of Ireland， killing all the Lumper potato plants． In another place or time， the death of single crop species （物种） might not have been so important． But in Ireland， in 1845， people depended almost solely on the potato for food． The death of one species caused a terrible famine（饥荒）． Now， some scientists are worried that such a famine could happen again， but on a much wider scale．
Over the centuries， farmers have discovered thousands of different species of food crops． Each species has special qualities． Some can be grown in very hot or cold climates． Others are not affected by certain diseases． However， you won't find many of these species in your local supermarket． To feed the seven billion people on Earth， most farmers today are growing only species of plants and farming only species of animals that are easy to produce in large numbers．
For example， in the Philippines， there were once thousands of varieties of rice： now fewer than 100 are grown there． In China， 90 percent of the wheat varieties grown just a century ago have disappeared． Scientists believe that over the past century， we have allowed more than half of the world's food varieties to disappear．
One solution to this problem is to collect and store the seeds （种子） as many different plant varieties as we can before they disappear． The idea was first suggested by Russian scientist Nikolay Vavilov． In the 1920s and 1930s， he collected around 400，000 seeds from five continents． More recently， others are continuing the work he began．
In the U．S． state of Iowa， Diane Ott Whealy wanted to protect historic plant varieties， like the seeds her great ﹣grandfather brought to the U．S． from Germany more than a hundred years ago． She and her husband started a place called Heritage Farm， where people can store and trade seeds．
More importantly， the people at Heritage Farm don't just store the seeds； they plant them． By doing this， they are reintroducing foods into the marketplace that haven't been grown for years． These food species are not just special in terms of appearance or taste． They also offer farmers food solutions for the future， from the past．
（1）What is this passage mainly about？
A． The need to protect different food species．
B． How to increase the number of food species．
C． The fact that many food species are dying out．
D． How to prevent food species from disappearing．
（2）Why are some scientists worried that such a famine could happen again？
A． Because people depend on certain species of food crops．
B． Because the same deadly disease may attack crops again．
C． Because the world's population is larger than that in 1845．
D． Because farmers grow the same potatoes as those in the past．
（3）The following sentence would best be placed at the end of ．Meanwhile， thousands of other species are dying out．
A． Paragraph 1
B． Paragraph 2
C． Paragraph 3
D． Paragraph 4
（4）What can we learn from the passage？
A． The disease spread very quickly and killed thousands of people in Ireland．
B． Around 80 percent of the rice varieties in the Philippines have disappeared．
C． People have been storing seeds to save plane varieties for less than 100 years．
D． Heritage Farm is the first place in the U．S． for people to store and trade seeds．
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