Scientist Florence Wambugu works with farmers in Kenya, a country in East Africa.  She helps them grow bigger and better crops. Wambugu is especially interested in finding simple ways to produce more food.

In the past ten years, Wambugu has spent much of her time studying sweet potatoes, which are an important food in her part of Kenya. A virus kept attacking the plants. It stopped the sweet potatoes from growing well. Because of the virus, some farmers lost three quarters of their crops.

Wamugu went to war against the virus. Her search for a way to save the sweet potatoes led to a lab in St.Louis, Missouri.

The lab mainly works on genes, the chemical “computer programs” found in the cells of living things. Genes tell a plant to produce pink flowers or an animal to grow black hair. Now scientists have found ways to move genes from one living thing to another. That process is called genetic engineering.

Wambugu spent three years in the lab. As a result, she created a sweet potato plant that could fight off the virus. Wambugu tested her research in Kenya, and her plants produced wonderful sweet potatoes.

That’s just the beginning, Wambugu believes. Genetically modified foods, she thinks, could help farmers in poor countries grow badly needed crops, thus, fewer people will go hungry.

41.     The text is written mainly to _________

A. tell us sweet potatoes are in danger of being attacked by virus

B. introduce Wambugu’s contribution to genetic engineering

C.introduce a new way of killing plant viruses

D. tell how hard Wambugu worked in her lab for three years

42.     What caused Wambugu to set up a lab in St. Louis, Missouri?

A. Her wish to save sweet potatoes in Kenya.

B. Her great interest in genetic engineering.

C. Her love for sweet potatoes.

D. Her interest in plant life.

43.     The fourth paragraph mainly explains what _________is.

A. a crop virus              B. chemical technology

C. a computer program       D. genetic engineering

44.     What is Wambugu’s attitude toward “genetic engineering”?

A. It will help more hungry people.

B. It should be carefully used.

C. It has more disadvantages than advantages.

D. It is a too expensive technology at present.

45.     According to the passage, which of the following is NOT true?

A. Florence Wambugu often helps farmers with their work.

B. Florence Wambugu has studied sweet potatoes for 10 years.

C. Genes can be moved from one thing to another.

D. Florence Wambugu has succeeded in creating genetically modified sweet potatoes.

It is exciting to visit different places. As you travel, you will see beautiful sceneries typical of the region. Besides, you can meet and make friends with people of different colors and races. Finally, you can get to know the customs and living habits of the local people. Today people are so fond of travelling that tourism has become one of the fastest growing industries in most countries.

The main reason why people travel is, perhaps, for pleasure. For example, having worked hard throughout the weekdays, people will find a widened trip to the nearby mountains or beaches for a relaxation. For another example, spending an annual holiday travelling abroad is an especially satisfying experience for those who do not have much of an opportunity to be away from their homelands. When people return from their travel, they will generally feel fresh and energetic, ready to work harder.

Travelling is also one of the best means for learning. You may have read or heard about something but you can never get an accurate picture of it until you see it for yourself. Seeing is believing. Furthermore, if you are a careful observer, you can learn much during your travel about the geography, biology, and history of the places you visit. No matter how well educated you are, there is always a lot for you to learn through travelling. The knowledge acquired from travel, as you have found in your life, is no less valuable than that from any influential reference books.

36.     According to the passage, it is exciting for people to visit different places for the following reasons EXCEPT_________

A. They can enjoy the beautiful sceneries of different regions

B. They can make friends with different kinds of people

C. They will help to improve the tourism of the region

D. They can get to know the local customs and living habits

37.     According to the author, the most important reason for people to go travelling may be _________

A. making friends     B. sightseeing    C. learning     D. enjoyment

38.     By saying “Seeing is believing”, the author means that _________

A. you cannot believe it until you see the real object by yourself

B. you will have a clear idea about something when you see it personally

C. you will know what has happened to something when you see it

D. you will have no doubt when you see something by yourself

39.     Which of the following statements is NOT true according to the passage?

A. Tourism is the fastest growing industry in some countries.

B. People may take a trip to the nearby mountains or beaches to relax at the weekends.

C. Travelling may make people feel fresh and energetic.

D. The knowledge we get from travel is as valuable as that from reference books.

40.     The underlined word “acquired” most probably means _________

A. seen     B. listened     C. learned     D. stolen

A well-known manufacturer of weighing machines produced a new model.

The machine had a computer inside it, and this computer could do wonderful things: it could weigh people very accurately; it could tell them their weight in their own language; and it could tell them what they should eat to reduce their weight.

The manufacturer decided to try out his machine before he sold it to the shops.

He looked around for a good place to put it and finally decided on an airport. There were always people at an airport from many different countries.

The first person to use the machine was an Italian woman. She stood on the machine, put a coin in and waited to hear her weight.

The machine took only a second or two to weigh her, decide on her nationality and the language she spoke, and figure out what kind of food she should eat.

“Good morning, madam,” it said in perfect Italian. “Your weight is 72 kilos, three more than it should be for a woman of your height, age and nationality. This is because you have been eating too much spaghetti. I suggest you eat more fruit and vegetables. Please have a nice day.”

The second person to use the machine was a Chinese girl. She stood on the machine, put a coin in and waited to hear her weight.

 “Good morning, Miss,” the machine said in prefect Chinese.” Your weight is 38 kilos, exactly the correct weight for your height, age and nationality. Continue to eat what you are eating. Please have a nice day.”

The third person to use the machine was a huge Australian woman. She walked up to the machine and looked at it for a long time. At last she found the courage to stand on the machine and put a coin in.

The machine spoke immediately.

“Good morning. Will one of you ladies please get off?”

31.     What could the computer do?

A. Weigh and talk to people     B. Translate information.

C. Give them diet pills.         D. Make them lose weight.

32.     Where did the manufacturer first put the machine?

A. In the shops               B. In many different countries

C. In an airport               D. In a hotel

33.     What did the machine say to the Italian woman?

A. She was a little too light.     B. She was a little too heavy.

C. She disliked spaghetti.       D. She couldn’t speak Italian.

34.     What did the machine say to the Chinese woman?

A. She should eat more.        B. She could speak Chinese.

C. She would have a nice day.   D. She was fine.

35.     What did the machine suggest about the Australian woman?

A. She was unwell.           B. She was courageous.

C. She was too heavy.         D. She had dieted well.

Long ago I came to the city near my hometown to find a job. I met all kinds of 16 and so I used up all my money soon.

One day, I got on a bus quietly at dusk when most people got off work. Suddenly, a  17 cried loudly, “Someone has  18  my money!” I felt  19 , because his money was in my  20 . Some people suggested the bus be driven to the police station, but some were against it because they were in a hurry to go back home. The whole bus was very 21 . The driver then stopped the bus by the road and turned on the lights to  22 the money. At that time, one passenger said, “Turn off the lights and give the thief a chance to take out the money.” Then the bus got  23 . When I was still struggling (斗争) in mind whether to take out the money or not, the lights were on again. There was no money on the floor. Someone said again, “Give him one more  24 .” Then the lights were off again. My heart kept beating fast. The lights were on again but they got the  25 result. The passengers were in heated discussion again. At that time, someone said again, “Give him the  26 chance!” Suddenly I felt  27 and took out all the money when the lights were off again.

For many years I have felt  28 to the one who gave me three chances to 29 my mistake. When the first and second chances come, you may not be prepared well or don’t have enough  30 to act. When the third chance comes you should know clearly what you should do.

16.  A.  difficulties     B.  strangers      C.  dangers       D.  chances

17.  A.  thief         B.  driver        C.  passenger     D.  policeman

18.  A.  borrowed     B.  received      C.  paid         D.  stolen

19.  A.  sad          B.  calm         C.  nervous      D.  angry

20.  A.  mind         B.  bank         C.  house        D.  hand

21.  A.  noisy        B.  dirty             C.          bright D.  empty

22.  A.  take out       B.  give back     C.  search for     D.  throw away

23.  A.  cold         B.  dark         C.  clean        D.  crowded

24.  A.  reason        B.  way         C.  chance       D.  choice

25.  A.  strange       B.  exciting          C.          second D.  same

26.  A.  last B.  only C.  fair D.    good   

27.  A.  upset B. awakened C.  pleased D.  interested

28.  A.  painful       B.  sorry        C.  lucky        D.  grateful

29.  A.  make B. try C. repeat D.  correct

30.  A.  strength      B.  skill         C.  courage      D.  experience

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