Today there are 7 billion people on the earth．By the year 2050 there may be 9.0 billion．We will have a lot more people to feed．We need more food．
One way to produce more food is by growing stronger plants．For thousands of years，farmers have made plants better．Every season，they pick the best plants for the next season．It works very slowly．Since1983 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 foods(转基因食品)，or GM foods.
By changing the genetic material of a plant，it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases：a kind of rice is being prepared，for example，which stops people from becoming blind．Rich countries produce GM foods because they are easy to grow and they 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．But 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 very interested in their use，and they are not going to die．In 2050 we may think differently about them．Who invented the GM plants?
| A．Farmers． | B．Workers |
| C．Scientists． | D．Plants． |
People plant the GM plants because .
| A．they make plants strong against diseases |
| B．they are unnatural |
| C．they can help in human diseases |
| D．both A and C |
What do you think of the GM plant?
| A．It grows too slowly． |
| B．It is bad for people’s body． |
| C．It can greatly help the poor countries． |
| D．It produces less food than the general plant. |
Why do some people dislike the GM plants?
| A．The GM foods may harm the human body． |
| B．The GM foods have terrible taste． |
| C．The GM foods are bad for the adults． |
| D．The GM foods are not cheap． |
From the passage we can find out__________
| A．the GM plants can produce more food |
| B．scientists want to make more money |
| C．scientists find the GM plants by accident |
| D．scientists work on the subject for fun |
Alfred Nobel, a Swedish - born chemist, who died in 1896, at one time believed that his invention of explosives (炸药) could bring wars to an end, But later he found he was wrong.
Nobel was born in Sweden in 1833. With only one year of formal schooling, he became a chemist and inventor by age of 16.
He was also a linguist, speaking English, Russian, German and French besides Swedish. He wrote poetry(诗歌). He began his work with producing liquid nitroglycerin (硝酸甘油) for use in mining and construction. He then discovered that liquid nitroglycerin could be dried. He called it dynamite, after the Greek word dynamis, meaning "power". Then he became rich. When he died, his estate (财产) was worth about 89 million.
Nobel never married, and he left most of his estate to those who have been known as Nobel Prizes. The money is invested (投资) and the interest (利息) is given out as yearly prizes for persons who have done something special for mankind in the fields of physics, chemistry, physiology, medicine, literature, and peace.
Prizes were first awarded in 1901. Over the years, many great people such as Albert Einstein in physics, Marie Curie in chemistry, Martin Luther King, Jr. for peace and Mo yan for literature got the awards.From the passage we can guess the underlined word "linguist" is a person who_______.
| A．can speak a foreign language |
| B．writes good poetry |
| C．knows several foreign language well |
| D．makes many inventions |
Alfred Nobel believed_______.
| A．he would become the richest person of the world |
| B．his invention could stop wars in the world |
| C．the Nobel Prizes could be world - famous |
| D．no one could use his invention to start wars |
All the questions have been answered Except_______.
| A．who chooses the Nobel Prize winners |
| B．when were Nobel Prizes first awarded |
| C．who could win Nobel Prizes |
| D．what else was Nobel interested in besides chemistry |
Joe and his friends were on their way to the Red Cross Headquarters to take the test for the first- aid badge（徽章）.They had worked and practiced very hard the whole year and were confident that they would do well for their test.
On their way to the test place, they saw a hit - and - run accident. A taxi driver had sped through the red light and almost hit a schoolboy, However, he could not stop in time to avoid（避开）a motorcycle that had turned round the corner. The passenger at the back was thrown off the motorcycle and landed heavily on the ground. The taxi driver was frightened and drove off.
Everyone on the street was greatly surprised.
Joe realized that they should take action when he saw the victim（受害者）bled heavily. "Come on," he said to his friends and wanted them to follow him but they didn't move.
Joe knew what they were thinking. They would have to wait for another year if they were to miss the test. "Which is more important? A man's life or a badge?" Joe asked his friends.
The question made his friends feel small.
The victim had a deep cut on his head. Joe and his friends dressed his wound to stop the bleeding while waiting for the hospital car to arrive. This was what the Red Cross Society had trained them for.Joe and his friends were on their way to the Red Cross Headquarters to_______.
| A．take a test on first - aid badge |
| B．collect their first - aid badges |
| C．report a hit - and - run accident |
| D．help the victim of an accident |
Who got hurt in the accident?
| A．The passenger in the taxi. | B．The passenger on a motorcycle. |
| C．The taxi driver. | D．The motorcycle rider. |
The test for the first - aid badge is held _______.
| A．once a year | B．twice a year |
| C．once a term | D．twice a term |
What did Joe and his friends do for the victim?
| A．They took him to the hospital. |
| B．They stopped the bleeding for him. |
| C．They did nothing for him. |
| D．They made a phone call to his family. |
In the morning, Mr. Martin comes into his garden. He sees too much snow in the garden. Mr Martin wants to take his car out, so he asks a cleaner to clean the road(路) from his garage(车库) to the gate. He says to the cleaner, “Don’t put any snow on the flowers or on the wall. And don’t put any into the street, or the policeman will come.” Then he goes out.
When he comes back, the road is clean. There is no snow on the flowers, on the wall or in the street. But when he opens the garage to get his car out, he sees: it is full of snow, the snow from the road, and his car is under the snow!What is the weather like?___________
| A．It’s very hot. | B．It’s raining. | C．It’s cold | D．It’s windy. |
Who cleans the snow on the road? ___________
| A．Mr Martin. | B．A policeman. | C．Mrs Martin. | D．A cleaner. |
Why can’t the cleaner put any snow into the street? ___________
| A．Because there’s too much snow, too. |
| B．Because the policeman will come. |
| C．Because there are flowers in the street. |
| D．Because there’s a car in the street. |
Where is the snow after the cleaner cleans the road? ___________
| A．On the flowers. | B．In the garage. |
| C．In the street. | D．We don’t know. |
What does Mr Martin think of the cleaner? ___________
| A．He is smart. | B．He does a right thing. |
| C．He does a wrong thing. | D．He helps Mr Martin. |
Tim and Li Fang are not going to have any classes next week. They’re going to work on a farm. They are going to leave at about seven thirty on Monday morning. They are going to travel to the farm by bus. They are going to wear old clothes because they are going to grow rice. They are going to have fish for lunch. They are also going to have a swim at the farm.
Tim and Li Fang are excited about going to the farm. Not only are they going to help around the farm, they are going to learn about farming.
Li Fang is worried that Tim won’t arrive on time to catch the bus because he is nearly always late. Li Fang often has to say to him, “Don’t be late, Tim.”When are Tim and Li Fang not going to have any classes?
| A．Tomorrow. | B．Next week. | C．Next month. | D．Next year. |
What time are they going to start?
| A．At 7:00 a.m. | B．At 7:30 p.m. | C．At 6:30 a.m. | D．At 7:30 a.m. |
What are they going to do there?
| A．Grow rice. | B．Play. | C．Eat fruit. | D．Pick apples. |
How are they going to the farm?
| A．By bike. | B．On foot. | C．By bus | D．By car. |
Who is often late?
| A．Tim. | B．Han Mei | C．Li Fang | D．Both Tim and Li Fang |
One day, a little boy comes into a shop and says to the shop assistant, “I want to buy twelve exercise books of 6 cents(美分)each and nine pencils of 10 cents each. How much is that altogether(总共)? ” 
The shop assistant writes these numbers down on a piece of paper and thinks for a minute. Then she says, “1 dollar 62 cents. ”“If I give you ten dollars, how much money will I get back? ”“You will get 8 dollars 38 cents for change. Here you are. These are the things you want. ”
“No, thank you. I don’t want to buy anything. ”The boy looks at the piece of paper and says politely, “This is my math homework. Thank you very much. Can I take it away? ”The story happens______.
| A．in a shop | B．at a mall | C．in a supermarket | D．at school |
The little boy comes to the shop for______.
| A．nine pencils | B．some books | C．nothing | D．his homework |
The little boy is______.
| A．bad | B．naughty but clever | C．stupid(愚蠢的) | D．hard-working |
At last the shop assistant must be______.
| A．excited | B．happy | C．angry | D．surprised |
The underlined word “change” in the second paragraph means______.
| A．零钱 | B．交换 | C．改变 | D．金钱 |
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