No air means death. There is air around us 36 we can’t see it. Air is everywhere and it gives 37 to every living thing. We can’t live 38 it. Bad air makes people ill. We must have fresh air to keep us 39 .
In the city there are a lot of people and there are too many 40 running on the road. The gas which the car sends out is made up of(组成) bad gases. Every day we 41 it in and out. This makes us feel sick. There are many 42 , too. From the chimneys(烟囱) of these factories, we 43 get the smoke in black color. This kind of smoke is 44 to our health. So in order to keep us healthy, we have to go out to the 45 to breathe more fresh air. Or we can go up hills to get more fresh air. A. because B. though C. so
A. life B. name C. pleasure
A. with B. without C. below
A. quiet B. tall C. healthy
A. dogs B. trains C. cars
A. breathe B. draw C. bring
A. animals B. people C. factories
A. usually B. never C. seldom
A. helpful B. dangerous C. necessary
A. office B. city C. Countryside
People live in different houses. You may know a wooden house or a paper house. But do you know a(n) 1 house?
In 2008, the first ice house in North America opens its 2 to welcome some visitors. The floors, windows and walls are all made of ice. It has ten bedrooms 3 twenty people can stay there each night. Visitors to the house 4 in ice beds, sit on ice chairs and eat from ice plates. Well, the toilets are not made of ice, of course.
It’s usually below zero so it is very 5 inside the house. However, do the visitors just sit there to 6 warm? No, visitors have to 7 special clothes. These can make 8 feel warm until morning.
Workers 9 about four weeks designing the ice house. Visitors can only stay in this ice house in winter. It isn’t 10 in hot summer. Because this house is so special, it is becoming popular with young people.
A．toy B．water C．ice D．candle
A．window B．door C．shop D．book
A．but B．because C．if D．and
A．cook B．lie C．stand D．change
A．cold B．hot C．bright D．dark
A．say B．shine C．keep D．call
A．make B．wear C．dress D．hope
A．them B．you C．it D．us
A．need B．cost C．pay D．spend
A．early B．clean C．closed D．open
When you speak, write a letter or make a telephone call, your words carry a message. People communicate (交流) with words. Do you think you can communicate without words? A smile on your face shows you are __1__ . Tears in your eyes tell others you are sad. When you __2__ your hands in class, the teacher knows you want to __3__ something or ask questions. You __4__ your head from side to side, and people know you are saying no.
Other things can also carry messages. For example, a sign at the __5__ helps you know which bus you can take here. A sign on the wall of your school helps you __6__ the library. Signs on the doors tell you __7__ to go in or out. Have you ever noticed that there are lots of signs round you and that you receive messages __8__ them all the time? Books, newspapers, TV, radios and __9__ all help us to communicate with other people. They all help us __10__ what is going on in the world and what other people are thinking about.
A．sorry and sad B．worried and frightened C．happy and friendly D．tired and angry
A．put on B．put out C．put up D．put down
A．speak B．talk C．give D．say
A．move B．hide C．go D．put
A．post office B．police station C．bus stop D．book shop
A．read B．find C．watch D．look
A．where B．which C．why D．what
A．from B．for C．of D．about
A．men B．teachers C．fridges D．films
A．see B．know C．notice D．hear
As everyone knows, there are many 16 of transportation in the world, like bicycles, buses, ships, trains and 17 .
If you are in big 18 like Shanghai or Beijing, maybe you get to school 19 a subway or you have to 20 to school because you live in a mountain village. Here I am just trying to say something about 21 .
Ten years 22 , bicycles were very 23 in most villages. 24 family had one or two of bicycles. Children got to school by bicycle; 25 rode bicycles to go shopping. Then motorcycles (摩托车) 26 to become popular. People no longer rode bicycles because motorcycles ran 27 faster. But now, in some countries，bicycles are highly suggested
28 the main means of transportation. They think buses, cars and motorcycles pollute(污染) the air but bicycles 29 . So, to live a low-carbon life, 30 a bike is a good way.
A．kind B．kinds C．mean D．way
A．other B．others C．the other D．another
A．cities B．countries C．villages D．countryside
A．on B．by C．in D．of
A．on foot B．walk C．walks D．runs
A．bicycles B．motorcycles C．buses D．cars
A．later B．before C．ago D．after
A．cheap B．important C．expensive D．popular
A．All B．Both C．Every D．Most
A．women B．boy C．woman D．girl
A．begin B．began C．begun D．start
A．more B．much C．less D．most
A．for B．in C．at D．as
A．not B．don’t C．doesn’t D．didn’t
A．riding B．rides C．rode D．ride
Many animals use some kinds of language .They use signals (信号) and the signals have meaning , For example, When a bee has found some food , it goes 21 its home .It is 22 for a bee to tell 23 bees where the food is by speaking to 24 ,but it can do a little dancing .This tells the bees where the food is and 25 it is .
Some animals show how they feel by making sounds . It is not difficult to tell that a dog barks (吠) 26 it is angry .Birds make several different sounds .and 27 has its own meaning . Sometimes we humans make sounds , 28 we make sounds like OH or OUCH to show we feel about something or when we 29 something on our feet.
We humans have languages. We have words .These words have the meaning of things actions (行动)，feeling or ideas .We are able to give each other information by writing down words .in this way , we can 30 what has happened or send the messages to people far away.
A．out of B．on with C．away from D．back to
A．important B．difficult C．unnecessary D．impossible
A．each other B．another C．the other D．others
A．it B．him C．them D．themselves
A．how long B．how far away C．how many D．how old .
A．so that B．before C．until D．because
A．each B．every C．all D．some
A．put B．drope C．fell D．set
A．speak B．remember C．know D．understand.
Flies (苍蝇) usually live in the dirty places.
Let’s look at a fly, and see where it 27 . First, it flies out of the window, 28 it stands on 29 dirty things in the street, and then it flies back to the house and walks over your 30 .
When a fly walks on the dirty things in the street, its 31 have got some germs 32 them. When the fly walks on your food with its dirty feet, it 33 the germs on your food.
What can you 34 this?
First, we learn that we mustn’t leave dirty things in the street or on the ground near 35 . Second, we learn that all food must be covered so that flies may not 36 it. Third, we learn that flies often carry germs and we must kill them as soon as we see them.
A．walks B．stands C．lives D．flies
A．first B．second C．third D．fourth
A．some B．any C．every D．each
A．food B．drink C．cups D．bowls
A．body B．feet C．eyes D．head
A．in B．to C．on D．over
A．carries B．has C．leaves D．takes
A．study from B．study for C．learn for D．learn from
A．the factory B．our door C．our house D．a window
A．arrive B．get C．arrive in D．get to
Hearing is very important to all of us. We can 36 beautiful music, nice songs of birds, the laughter of people or other different kinds of 37 in the world with our ears. 38 we must try to protect our ears. The following will tell you 39 protect ears.
Listening to 40 music a lot can be bad for ears, 41 when headphones（耳机）are used. So try not to wear headphones or 42 the volume（音量）when you’re wearing headphones. You should give your ears a rest if you like wearing headphones.
43 swimming, remember 44 earplugs（耳塞）into your ears or wear a swim hat to stop water 45 getting into your ears. If you go to a concert, wear earplugs to protect your ears from the terrible music! 46 , special earplugs can be made for you if you go to concerts a lot or if you are a musician yourself. See a 47 if your ears hurt. You’d better 48 as what the doctor says. 49 the suggestions above now and you won’t say “What, what…?” when you are getting 50 . A. listen B. hear C. listening
A. sounds B. noise C. voices
A. Because B. Although C. So
A. what to B. how C. how to
A. loud B. aloud C. loudly
A. specially B. especially C. special
A. turn off B. turn down C. turn up
A. Before B. After C. When
A. put B. to put C. putting
A. to B. with C. from
A. In fact B. For example C. Even though
A. teacher B. doctor C. friend
A. to do B. doing C. do
A. Listen B. Hear C. Follow
A. young B. old C. sick
Air is all round us．It is around us___31____we walk and play．From the time we are born，air is around us on every side．When we sit down，it is around us．When we go to bed．air is 32 around us．We live 33 air．
All living things 34 air．Living things cannot live 35 air．We can live without any water for 36 days，but we cannot live for more 37 a few minutes without air．When we are working 38 running，we need more air．When we are asleep，we need less air
We live in air but we cannot see it．We can only feel it．We can feel it when it is 39 ． Moving air 40 wind．
A．if B．because C．when D．what
A．too B．also C．either D．yet
A．with B．by C．in D．around
A．need B．hope C．want D．1ike
A．little B．a Iittle C．few D．a few
A．about B．over C．than D．then
A．or B．and C．so D．but
A．moving B．standing C．stopping D．sleeping
A．is 1ike B．1ikes C．calls D．is called
Electric bicycles which run on battery-operated (电瓶) motors are winning over riders of ordinary bikes 41 their speed, quality and environmental advantage.
They were first 42 on 1980s in China, but the selling was not very good. Today, thanks 43 improvements on battery quality, the electric bikes sell well. There are now more than 100 electric bicycle producers in China and 26 million such bicycles were produced in 2011. Japan is another large 44 of such bicycles in the world with a total production reaching 381,721in 2010.
45 China is one of the largest producers of electric bicycles in the world, the 46 of its producers with mass production (大批量生产) is actually small.
Electric bicycles are still 47 in China. Time is needed for people to become familiar with them and accept them. Each bike’s price of between 2,000 yuan (US $318) and 3,000 yuan (US $477) is still 48 for ordinary citizens (民众). Although such bikes are quick, safe and 49 to operate, their batteries still have shortcomings (不足). They weigh more than 10 kilograms; their service life is 50 two years and they 51 400 yuan each.
There were more than 450 million bikes in China in 2006. If just one percent of all these bikes are replaced by electric 52 , the market will be very large. And 53 the battery is further improved and the price is 54 , many of us will not be able to keep back from 55 the latest electric bikes
A．because of B．because C．towards D．at
A．build B．built C．building D．to build
A．for B．in C．by D．to
A．producer B．production C．produce D．to produce
A．But B．If C．Although D．When
A．buyer B．number C．price D．owner
A．old B．tall C．new D．short
A．small B．large C．expensive D．high
A．easy B．difficult C．hard D．easily
A．other than B．more than C．over D．less than
A．spend B．cost C．take D．make
A．cars B．bike C．ones D．one
A．where B．unless C．whether D．if
A．increased B．raised C．reduced D．lifted
A．buying B．brought C．to buy D．buy
How many plastic bags do you use every day? 46 there any chance for us to live without them? What can we do to have 47 plastic pollution? A performance in Hangzhou makes people 48 more about the overuse of plastic bags in our lives.
In front of a supermarket in Hangzhou , five volunteers 49 white plastic bags and walked around and through the crowd. The performance 50 people to use more cloth bags 51 plastic ones.
Some of the plastic bags worn by the performers were collected from customers in two food markets and 52 were collected by 700 students from a middle school.
On that day, when leaving the food markets, customers were told to hand over 53 plastic shopping bags. 54 plastic bags were collected in two hours.
“ If we do 55 about it, the earth will be eaten up by white pollution. And 56 will become ‘plastic men’,”said one of the performers.
“How can you breathe in 57 plastic bags?” A 58 woman asked one performer.“How can the earth breathe 59 there are too many plastic bags?”the performer answered.
Starting in June 2008,plastic bags were 60 given for free in supermarkets,shopping malls or food markets all over the country.
People are called on﹙号召﹚to use cloth bags when they go shopping.
A．Are B．Were C． Is D．Was
A．few B．much C． fewer D．less
A．think B．thinks C．to think D．thinking
A．worn B．wore C．tried on D．try on
A．called back B．called C．called on D．cheered on
A．instead B．take the place of C．instead of D．take place
A．other B．the other C．another D．the others
A．helpful B．unnecessary C．useful D．necessary
A．Hundred B．Hundreds of C．Hundred of D．Hundreds
A．nothing B．anything C．something D．everything
A．human being B．human beings C．humen beings D．humans beings
A．so much B．too much C．such many D．so many
A．40-year-old B．40-years-old C．40 year old D．40-years old
A．until B．because C．if D．unless
A．no longer B．always C．not longer D．usually
How did I become known as a "rubbish picker '?
I never 36 rubbish before. I didn't care where it went or who cleaned it up. But two years ago, I started caring about it deeply. I lived near a forest in Ohio, America. I can walk there 37 three minutes! I used to love going there to play with my dog. One day there was 38 much rubbish there that I became very unhappy. I decided to clean up the forest. I want to 39 happy going there again. I made my first trip to clean the forest that afternoon. I took a big black rubbish bag with me. Ten minutes 40 I started to pick up rubbish, my bag was full! From then on, I go to the forest four times a year 41 rubbish, it makes me feel 42 to do something for the environment. After each trip, I look at all the rubbish that I've found. If 43 of it is recyclable, I keep it. I will keep picking up 44---people stop dropping it. I know I am only doing a small bit 45 the earth, but I think it is important.
A．took care B．cared about C．cared for D．took care of
A．after B．for C．with D．in
A．such B．very C．so D．many
A．make B．feel C．look D．rind
A．after B．later C．before D．of
A．pick B．to pick C．to pick up D．pick up
A．tired B．sad C．interesting D．great
A．many B．few C．some D．much
A．until B．after C．as soon as D．when
A．helped B．to help C．help D．helping
Is your schoolbag too heavy? The e-schoolbag will help you. It is said that e-schoolbags are going to be brought into 43 in Chinese middle schools soon.
Heavy schoolbags have been a serious 44 for a long time. But the e-schoolbag will 45 . An e-schoolbag is 46 lighter than a usual schoolbag. Perhaps, the e-schoolbag should be 47 an e-textbook. It is a small computer for students. It is as 48 as a usual book, 49 it can still have all the things for study, such as textbooks, exercise books and so on which can be made 50 chips(芯片) like stamps. The students can read the text page by page on the screen, take notes, or even send e-mails to their teachers. They only need to 51 the right chip into the e-schoolbag. Then they can use it.
Some people say 52 e-textbooks can be easily broken, while others say it is not good for eyes. But only time will tell.
A．use B．useful C．used D．to use
A．idea B．problem C．question D．thought
A．work it out B．work out it C．work out D．work them out
A．very B．much C．too D．so
A．call B．calls C．called D．calling
A．small B．smaller C．smallest D．most small
A．and B．as C．or D．but
A．into B．from C．up D．of
A．bring B．get C．take D．put
A．if B．what C．that D．which
IQ（intelligence quotient智商）is a score that shows a person’s level of intelligence.
People used to believe that some people are born with a high IQ and some aren’t.
32 , a study by scientist at University College London has challenged（挑战）this idea. According to an article last October on the Journal Nature, scientists are beginning to think that our IQ is not a constant（不变的）score.
The scientists tested 33 healthy young people in 2004 between the ages of 12 and 16. Then they did tests again four years later, when the same people were between 16 and 20.
Scientists found big changes in the IQ scores between 2008 and 2004. Some 33 and some fell 34 as many as 21 points.
To test whether these scores were meaningful, the scientists compared them with results from brain scans（扫描）. They found that the IQ changes matched changes in the structure（结构）of the subjects’ brains. “A change in 20 points is a huge 35 ,” said Professor Cathy Price, who led the research. He said it could mean the difference between an average and a 36 person. The team has not found a clear cause for these changes. However, they say it is 37 that education plays a role in changing IQ.
“Here we have shown that children’s 38 is likely to be still developing, ” says Price. “We have to be careful not to write off 39 performers at an early stage. In fact, their IQ may improve in a few more years. ”
A．And B．However C．Besides D．Though
A．rise B．rose C．raise D．raised
A．of B．with C．by D．from
A．difference B．matter C．thing D．meaning
A．successful B．gifted C．able D．rich
A．natural B．true C．certain D．possible
A．score B．intelligence C．skill D．interest
A．clever B．prettier C．nicer D．poorer
Electronic books have changed the way many people read for 15 . Now online textbooks are changing the way some students learn and some teachers teach.
More than 16 students go to the public schools in Fairfax County, Virginia, outside Washington. Last year, the school system used digital books in fifteen schools. This school year, middle schools and high schools changed 17 printed to electronic textbooks in their social studies classes.
“I mean, it’s just 18 a regular textbook, except it’s got it all online.” says Luke Rosa, a history teacher at Falls Church High School.
Peter Noonan, an assistant superintendent(主管) of schools says, “The world’s changing 19 . And the online textbooks can change right along with the events that 20 .”
“Digital books also cost 21 than printed textbooks,” he says, “Usually it’s between fifty and seventy dollars 22 a textbook for each student, which adds up to about eight million dollars for all of our students in Fairfax County. In fact, we have bought all of the online textbooks for our students for just under six million dollars.”
Social studies teacher Michael Bambara says the e-book he uses in his government class is better than a(an) 23 textbook. It has materials for students 24 different levels of reading skills…
A．pleased B．pleasing C．pleasant D．pleasure
A．one hundred seventy-five thousand B．one hundred seventy-five thousands C．one hundred and seventy-five thousand D．one hundred and seventy-five thousands
A．into B．from C．with D．along
A．like B．liking C．liked D．likely
A．at times B．at all times C．at that time D．at the same time
A．is happened B．is happening C．are happening D．have been happened
A．more expensive B．cheaper C．more D．less
A．buy B．buying C．to buy D．bought
A．online B．printed C．digital D．electronic
A．with B．have C．who has D．they have
Many people like to 36 the Internet. Exploring the Internet is one of the most important activities of the day. The Internet brings the outside world closer to people’s 37 . Some people say the world is smaller than before 38 of the Internet.
What’s 39 in other countries? 40 do people live in places far away? Is there an 41 sports game somewhere? 42 life like in the deepest part of sea? If you want to answer all these questions, just come to the Internet. 43 people can also learn through reading or listening to the radio. But with the Internet they can learn better and 44 . A lot of information can 45 at a great speed.
Can we go shopping without leaving home? Can we see a doctor without going to the school? Can we see a 46 without going to the hospital? —All these things seemed impossible but now they have become quite 47 .
The Internet helps us open our eyes. It also helps us 48 our minds. The Internet often gives us new ideas. 49 , it helps us in many ways. Great changes have taken place 50 the use of the Internet.
A．look for B．search for C．exploring D．search
A．families B．homes C．houses D．rooms
A．without B．because C．because of D．unlike
A．is happened B．happening C．is going on D．is taken place
A．Why B．What C．How D．Where
A．excited B．good C．exciting D．hard
A．What is B．What does C．How does D．How is
A．Instead of B．By the way C．Because of D．Of course
A．more easily B．easier C．much easily D．more easier
A．be collected B．collect C．collected D．collecting
A．friend B．film C．cook D．doctor
A．impossibly B．possibly C．impossible D．possible
A．open B．make C．let D．give
A．In a word B．At last C．At first D．However
A．since B．because of C．after D．though
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