Today there are 6.4 billion people on the earth．By the year 2050 there may be 12.5 billion．There are many people to feed．We need more and more food．
One way to produce more food is growing stronger plants．For thousands of years，farmers have made plants better．Every season，they pick the best plants for the next season．It words very slowly．Since 1983，scientists have been able to change plants more quickly by changing their genetic（遗传的） material．Foods from plants grown in this way are called genetically modified（转基因的） foods，or GM foods．
By changing the genetic material of a plant，it is possible to make new plants．Scientists make plants which are strong against plant diseases（疾病）．They can also help in our diseases，a kind of rice will be grown，for example，which stops people becoming blind．
Rich countries produce GM foods because they are easy to grow and bring in more money．Poor countries are interested in them because they help produce more food．
GM plants are not natural．No one knows how good or bad they are．Making GM foods is only one way of feeding people in 2050．There are strong feelings against them because they are unnatural．They may feed people，then hurt them or their children later．But both rich and poor countries are interested in their uses，and they are not going to go away．In 2050，we may think differently about them．
（1）There may be billion people by the year 2050on the earth．
A.6.4
B.12.5
C.18.5
D.20.5
（2）How have scientists been able to change plants more quickly？
A．By making the best plans．
B．By asking the farmers to grow plants
C．By changing planting environment
D．By changing their genetic material
（3）Why do rich countries produce GM foods？
A．Because they are easy to grow and bring in more money．
B．Because they are easy to grow and very cheap．
C．Because they help produce more food．
D．Because they are the best plants．
（4）Which of the following is NOT true according to the passage？
A．GM plants are not natural．
B．GM plants are strong against plant diseases．
C．Everyone knows how good or bad GM plants are．
D．GM foods may hurt people or their children later．]
（5）What can we learn from the passage？
A．GM foods will disappear one day in the future．
B．GM foods will not disappear in the future．
C．People will not be interested in GM foods．
D．People will have to stop eating GM foods．
A young man told off（责备） a kid for eating on the subway in Hong Kong．The kid's mother got angry about the young man's attitude（态度） and they started to argue with each other．
This happened last year and has caused a huge argument on the Internet．Some people think the behavior（行为） of the kid，a Chinese tourist，was bad because eating is not allowed on the Hong Kong subway．Others say that，because there's on such rule in many other cities，it's reasonable that tourists didn't know about it．
James Tien，chairman of the Hong Kong Tourism Board，asked both sides to calm down．
"Both parties（当事人） should learn to see things from the other side．"he said．"Hong Kong citizens should be more polite and explain local rules to tourists．"He also thinks that travelers should improve their manners．"When in Rome，do as the Romans do．Social customs are different in different countries and cities．Travelers should follow the local rules．"
61．The kid's mother argued with the young man ．
A．last year
B．last month
C．last week
D．two years ago
62．What does the underlined word"citizens"mean in Chinese？
A．权利
B．商业
C．公民
D．政府
63．James Tien thinks that．
A．travelers should improve their manners
B．travelers shouldn't go to Hong Kong
C．travelers shouldn't take a subway
D．travelers should go shopping
64．Which of the following is true according to the passage？
A．Eating is not allowed on the subway in many other cities．
B．Social customs are the same in different countries and cities．
C．A young man told off a kid for crying on the subway in Hong Kong．
D．Eating on the Hong Kong subway caused the argument on the Internet．
65．What is the best title of the passage？
A．How to Be a Bad Tourist．
B．Follow the Local Rules When Traveling．
C．Reasons for Tourists'Worst Behaviors．
D．No Eating on the Hong Kong Subway．
What does a typical day look like for a high school student in the United States？Well everyone's is very different．I can describe my normal day in high school for you．
Our school day usually went from 8：30am to 5：30pm．However，some days I had cheerleading（啦啦队） practice or play practice at 6：30am．If I had cheerleading practice I got ready at school，and if I had time，I ate breakfast at the school dining hall．
Then I would go towards my locker and get my books for the first period．Each class went for about 50minutes and we had 4minutes to get to the next class．We studied everything from science to math and Spanish to P．E．
I played the flute（长笛） in band，so one of my class periods was used for that．Lunch﹣time would be at 12：30pm and then we had some time to hang out outside or by our lockers．At the end of the day there was a seminar（研讨会） period．I could be used for studying or meetings．
After school，I would cheer at a basketball game，be a lifeguard（救生员） at work or have speech practice．My family always tried to have dinner together at around 7pm，but there wasn't always time．I would finally start studying at around 8or 9pm．
So there you have it!That's my typical day in high school．
56．How long did the writer usually stay at school on his school day？
A．Seven hours
B．Eight hours
C．Nine hours
D．Ten hours
57．Where did the writer eat breakfast if he had time？
A．At school
B．At home
C．In a restaurant
D．In the park
58．When did the writer hang out with his classmates？
A．After the first class．
B．After lunch．
C．After breakfast．
D．After school．
59．Which of the following is not the writer's after﹣school activity？
A．Have meetings．
B．Cheer at a game．．
C．Be a lifeguard．．
D．Practice speech．
60．What does the passage mainly talk about？
A．Our school day．
B．Everyone's life is different．
C．The after﹣school life in the US．
D．A typical day in high school in the US．
A famous designer（设计师） and a university student produce a new cup called Vessyl．They have spent several years （1） it．The smart cup can not only tell Coca Cola from Pepsi Cola，（2） also tell people whether they should drink water or not．
When people（3） liquid（液体） into this smart cup，a few seconds（秒） later，it can check this kind of liquid and tell them what it is．Then it gives（4） information of the drink，such as sugar，fat and calorie．When people put the cup in their （5） ，it can also show them the condition of their bodies．If they are （6） ．Vessyl can tell them to drink water．
"My partner and I want people to （7） healthy．In modern society，people are usually （8） busy to do exercise，or even drink enough water every day．They have much （9） ．We produce this smart cup so that people can make a choice （10） ．"the designer said．
（1）A．in |
B．on |
C．at |
D．of |
（2）A．and |
B．though |
C．nor |
D．but |
（3）A．pour |
B．pull |
C．lift |
D．regard |
（4）A．a few |
B．a lot |
C．lots of |
D．many |
（5）A．desks |
B．hands |
C．bags |
D．mouths |
（6）A．full |
B．hungry |
C．thirsty |
D．awful |
（7）A．carry |
B．have |
C．touch |
D．keep |
（8）A．too |
B．to |
C．so |
D．very |
（9）A．danger |
B．pressure |
C．power |
D．laughter |
（10）A．quietly |
B．hardly |
C．wisely |
D．recently |
China has the largest p in the world，about 1.4 billion．
There are 25 students in our art club． Among us， Sixteen girls and n boys．
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