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.

完型填空

　　From Monday till Friday most people are busy__1__or studying, __2__in the evenings and on weekends they___3___enjoy ___4___. Some watch TV or go to movies; others engage in sports. It ___5___ individual（个人的）interests. ___6___ many different ways to spend our spare time.

　　Almost everyone has some kind of hobby. It may be anything ___7___collecting stamps___8___model airplanes. Some hobbies are very expensive, but others___9___anything at all. Some collections are worth a lot of money, others are ___10___only to___11___.

　　I know a man who has a coin___12___worth seven thousand dollars. A short time ago he bought a rare fifty-cent piece worth 250 dollars! He was very happy about that and thought the price was___13___. On the other hand, my younger brother collects match boxes. He has almost 600 of them but I___14___if they are worth any money. However, to my brother they are extremely___15___ ___16___makes him happier than to find a new match box for his collection.

　　That's___17___a hobby means, I guess. It is something we like to do in our spare time simply___18___of it.___ 19___in dollars is not important but the pleasure it___20___us is important.

Lucy and Sam made an appointment of an interview on Sunday afternoon,________ they would be free.?

A.which　      B.when　       C.then　        D.where ?

A pill，code-named HT-0712，may make forgetfulness a thing of the past. It is being developed in the US and could go on sale within five years.

According to the newspaper The Sun，the wonder drug has been nicknamed “Mind Viagra”and has already been shown to boost the memory power of mice and flies. Next it will be tested on humans. This is just one of a number of drugs in a pharmaceutical (制药的) race to develop an increased memory pill. At least 12 US companies are believed to be working on similar projects.

Tim Tully，the founder of US drug company Helicon Therapeutics，who is in charge of the HT-0712 project，gave this practical example of its use for students：“If it takes two weeks to memorize a verse of Shakespeare，with one of these drugs you might be able to do it in two or three days. ”

“The memory drug business appears to be set to become a multi-million dollar industry，”experts say. This summer，100 Americans suffering mild memory loss will test HT-0712 in the first experiment on people.

“You don’t think better than you did before，you just get the facts in with less practice. There is a growing belief that memory and memory loss is just another treatable condition，”says Tully.

However，there is some doubt whether the drugs can really improve memory. In a study by the US’s Yale University Medical School，researchers suggested that the drug might affect other parts of the memory.

1.Which of the following can be most likely to replace the underlined word “boost” in the second paragraph?

A.Reduce.　　　 B.Increase.　　　　 C.Kill.　　　　　　 D.Harm.

2.What will happen to the students most probably if they take HT-0712?

A.They will grow taller.

B.They can memorize things easily.

C.They won’t suffer from illness.

D.They will choose whatever universities they like.

3.The future of HT-0712 can be said　　　　 according to experts.

A.dim　　　　　 B.uncertain　　　　 C.bright　　　　　　 D.worried

4.HT-0712 is a pill that　　　　 .

A.has bad effect on the health of mice and flies

B.has been experimented on dozens of animals

C.will be experimented on humans this summer

D.is certain to do no harm to human

5.The purpose of writing the passage is to　　　　 .

A.warn people the harm of HT-0712

B.introduce to people the advantages of HT-0712

C.tell people something about HT-0712

D.doubt whether it is worth developing HT-0712