I’ll _____ with my writing till the bell rings.　

A. carry out        B. carry on         C. carry off        D. carry away

　　Rats eat our food or make it so dirty that it isn't fit for people at all. That's why people often kill them by laying down poison. After a day or two, they find the poison still there. The rats haven't touched it, even though it is near the food which they eat. People think they must be clever and cunning. Some scientists have been trying to find the best way to poison rats. They have watched to see just what a rat does day and night. They have found out that rats aren't so clever. They are just very shy.

　　Rats usually live in holes. They run from these holes to the places where they eat and drink. They have special paths on which they travel each time. So they know their paths quite well.

　　If anything new, such as stone or wood, is put in the path, the rats won't go near it at first as they are too frightened. It will take them many days to get over the fear. They are also frightened to go near a place that they know, where something has been taken away. If a path goes around a rock, the rats follow the same path around the rock each time. If the rock is taken away, they will still run round the place where the rock was! They won't cross the empty place, which is now open to them, even though it would be quicker.

　　Rats will always keep away from anything unusual to them. That's why they won't eat poison on the first or second night. They usually won't go anywhere near it for about four days until they get used to being there. Even then they only eat a little at a time.

　　If people want to kill rats with poison, all they have to do is to leave it out for a few days. Once the rats have got used to it, they will eat it and die.

　　1．This passage mainly tells us

　　　　A. how a rat destroys our food

　　　　B. how to poison a rat

　　　　C. what's a rat's habit

　　　　D. poisoning a rat is not easy

　　2．How does the writer feel about rats?

　　　　A. They are clever and cunning.

　　　　B. They are the most dangerous enemy.

　　　　C. They are smart and shy.

　　　　D. It's easy for them to get close to an unknown object.

　　3．________ rats have special paths to travel each time.

　　　　A. Because they live in holes most of the time

　　　　B. To find more food to eat and water to drink

　　　　C. In order not to eat anything poisonous

　　　　D. To protect themselves

　　4．If you want to kill a rat, ________.

　　　　A. you should make it get used to the poison

　　　　B. you should drive it out of the hole

　　　　C. you should place a rock on the path along which it runs

　　　　D. you should make it get over the fear to cross the empty place

Do you suppose Darwin, one of the greatest scientists of all time, really did fools experiments? Or did he do experiments that were so simple and basic that other people just thought they were foolish?

　　Sometimes, people think they already know the answer to a question or the solution (解决办法) to a problem. Sometimes, they really do know an answer or a solution, but without thinking they are important.

　　Charles Darwin didn’t settle for (满足于) just thinking he knew something. And, he believed all things could be important however simple they seemed to be.

　　Suppose you drop sheets of paper that are of exactly the same size and shape. If you drop them at the same time in the same place, they will fall in the same way. Now make one of the sheets of paper into a tight (紧的) little ball and let it drop along with the other sheets. What happens? You have done an experiment that is so simple that you might think it couldn’t be worth anything.

　　But this simple experiment is important. It explains part of our present-day understandings of physics, ideas that were worked out long ago by Galileo and Newton. And these understandings set aside some of ancient Greek physics.

Scientist sometimes stops to look at very simple things and to think very hard about them. Even the simplest idea, which we might think is foolish, can shake the foundations of science.

1. The passage tells us that Charles Darwin ____.

　　A. was a great English scientist

　　B. always liked doing the experiments that others thought difficult

　　C. thought even the simplest thing was important

　　D. didn’t get well with others

2. The phrase “set aside” most probably means____ .

　　A. throw away      B. store up

　　C. put to use        D. realize

3. The author of the passage tries to ________.

　　A. convince us that Charles Darwin, Galileo and Newton are the greatest scientists in the world

　　B. draw the conclusion that basic sciences are simple things

　　C. prove that two sheets of paper, with the same size and shape, will fall at the same speed

　　D. draw our attention to everyday happenings around us

4Which of the following is TRUE?

　　A. Darwin really did fools experiments.

　　B. According to some people Darwin did foolish experiments.

　　C. It is believed by all the people that things could be important though they seemed to be simple.

　　D. Galileo and Newton worked out ancient Greek physics.

A lesson in caring

It was a cold evening. My daughter and I were walking up Broadway. I didn’t notice a guy sitting inside a cardboard box. But Nora    36    . She wasn’t even four, but she   37    at my coat and said, “That man’s cold. Daddy, can we take him home?”

    I don’t remember my   38    . But I do remember a sudden   39    feeling inside me. I had always been delighted at how much my daughter noticed in her   40     , whether it was     41    flying or children playing. But now she was noticing   42    and beggary.

    A few days later, I saw an article in the newspaper about volunteers who picked up a food package from a nearby school on a Sunday morning and   43     it to an elderly person. It was quick and easy. I signed us up. Nora was   44    about it. She could understand the importance of food, so she could easily see how   45    our job was. When Sunday came, she was ready, but I had to    46    myself to leave the house to fetch the food package. On my way to the school, I fought an urge (强烈愿望) to turn    47    . The Sunday paper and coffee were waiting for me at home. Why do this?   48    , we phoned the elderly person we’d been appointed. She   49    us right over.

    The building was in a bad state. Facing us was a silver-haired woman in an old dress. She took the package and asked us to come in. Nora ran inside. I unwillingly followed.   50     inside, I saw that the department belonged to someone poor. Our hostess showed us some photos. Nora played and when it came time to say goodbye, we three hugged. I walked home    51    .

Professionals call such a(n)   52    “a volunteer opportunity”. They are opportunities and I’ve come to see. Where else but as volunteers do you have the opportunity to do something    53     that’s good for others as well as for yourself? Nora and I regularly serve meals to needy people and   54     clothes for the homeless. Yet, as I’ve    55     her grow over these past four years, I still wonder—which of us has benefited more?

A. did                     B. was                          C. has            D. had

A. pulled　　　　     B. replaced                   C. waved        D. aimed

A. debate                   B. reply                        C. explanation D. expression

A. general　　　　    B. funny                       C. heavy         D. magical

A. web　　　　　    B. dream　　　　　    C. castle         D. world

A. insects                   B. animals　　　　      C. plants　　　D. birds

A. coldness 　　　    B. illness 　　　       C. suffering　　D. appearance

A. sent  　　           B. returned　　　      C. devoted　　 D. posted

A. concerned              B. sorry　　　　         C. worried      　D. excited

A. creative　　　      B. valuable　　　      C. shocking　　D. simple

A. warn　　　　　    B. stop　　　　  　    C. allow 　　　D. push

A. back 　　　　      B. away　　　　          C. up　　　　 D. out

A. Therefore　　　    B. But     　　          C. Anyhow　　D. Also

A. requested 　　    B. promised　　　      C. invited 　　 D. helped

A. Although            B. Once　　　　　      C. Because 　　D. Though

A. in tears                  B. in surprise                C. in reality      D. in disappointment

A. stay                    B. visit 　　　　         C. reception　　D. challenge

A. fair                    B. famous　　　　       C. difficult　　 D. enjoyable

A. collect                   B. make　　　　　      C. order 　　　D. design

A. let                         B. made　　　　　      C. watched 　　D. affected

第三部分 阅读理解（共20小题。 每小题2分，满分40分）

　　阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

Drying food is a simple, low-cost way to keep food safe for eating. Drying removes water that small organisms use to break down food into other substances. Some of these substances may be poisonous to humans.

A device that uses the sun is a good way to dry food. There are several kinds of solar dryers. The easiest to build is called the direct dryer. The sun shines directly on the food being dried. The direct dryer is a box with holes in it so that air can enter and leave the box. It has a cover made of clear glass or plastic. When the sun shines into the box, heat is produced. The heat is trapped inside the box and cannot escape back through the cover. The heat dries the food.

The solar dryer works better if the sides of the box are black. This is because dark colors hold heat while light colors reflect it. One way to make the sides black is to use wood that has been blackened by fire.

If you use black paint instead, be sure the paint contains no lead. Lead is poisonous to people, especially children.

The box can be made of almost any material such as wood, concrete or sheet metal. The dryer should be two meters long, one meter wide and twenty-three to thirty centimeters deep. The sides and bottom should have additional material, called insulation, to keep the heat from escaping.

The surface on which the food is placed should permit air to enter from below and pass through to the food. A surface made of wires with small square openings works very well. You should use wire with the largest openings or squares that do not allow the food to fall through. Air that comes in from below the wire surface will also carry away water evaporated from the food as it dries.

A direct dryer will dry most vegetables in two-and-one-half to four hours at temperatures from forty-three to sixty-three degrees Celsius. Fruits take longer, from four to six hours at the same temperatures.

51.Solar food drying is fast, safe and low-cost. It is also healthy because nutrients such as vitamin C are kept in the food. Solar dried food also tastes and looks good.

51.In which way will the food be fried quickly?

A.Let the sun shine directly on the food.

B.Make the sides of the box black.

C.Make wood be the sides of the box.

D.The box must be made of blackened wood.

52.What does the underlined word “evaporate” in the 6th paragraph mean?

A. sink into   B. change into gas or steam    C. flow away    D. flow into

53.According to the text., which of the following statements is true?

A.Water in the food may cause poisonous substances.

B.The sun shines into the box and be trapped.

C.Dark colours hold heat better than light colours.

D.It takes longer for vegetable to be fried.

54.What’s the text mainly about?

A.the way to dry food.

B.Solar Food Dryers

C.The device that uses the sun

D.The way to keep food safe.