Ques: Read the following article and select the best answer. Article: Pierre is a 25-year-old penguin at the California Academy of Sciences.Due to his old age,he was going bald,which made him feel too cold to swim in the pool.Therefore,biologists at the academy had a wetsuit created for this penguin to help him get back in the swimming pool. Unlike marine mammals,which have a layer of blubber to keep them warm,penguins depend on their waterproof feathers.Without them,Pierre was unwilling to jump into the swimming pool and ended up trembling on the side of the pool while his 19 peers played in the water. "He was cold:he would shake,"said Pam Schaller,a senior biologist.Schaller first tried a heat lamp to keep Pierre warm.Then she got another idea:if wetsuits keep humans warm in the cold Pacific,why not make one for Pierre? Schaller designed the suit,which covered Pierre's body and had small openings for his flippers. "I would walk behind him and look at where there were any gaps.and cut and refit until it looked like it was extremely suitable."she said. One concern was that the other penguins would reject Pierre in his new suit,but in fact,they accepted his new look.He swam freely and got along with others well,although he was the only penguin with a black stomach. Schaller couldn't say for sure whether the wetsuit allowed Pierre to recover his fine feathers,but" certainly we were able to keep him comfortable during a period of time that would have been very difficult for him to stay comfortable". Pierre will take off his suit after his new feathers grow back. Question: Pierre felt too cold to swim in the pool because of _ . - not having a layer of blubber - having few feathers due to old age - having no wetsuit - others penguins rejecting him
Ans: having few feathers due to old age

Ques: Read the following article and select the best answer. Article: When you want to go shopping, decide how much money you can spend on new clothes.Think about the kind of clothes you really need.Then look for those clothes you really need.Then look for those clothes on sale. There are labels inside all new clothes.The labels tell you how to take care of your clothes.The label for a shirt may tell you to wash it in warm water.A sweater label may tell you to wash in cold water.The label on a coat may say "dry clean only", for washing may ruin this coat.If you do as the directions on the label, you can keep your clothes looking their best for a long time. Many clothes today must be dry cleaned.Dry cleaning is expensive.When buying new clothes, check to see if they will need to be dry cleaned.You will save money if you buy clothes that can be washed. You can save money if you buy clothes that are well made. Well-made clothes last longer.They look good even after they have been washed many times.Clothes that cost more money are not necessarily better made.They do not always fit better.Sometimes less expensive clothes look and fit better than more expensive clothes. Question: We learn from the passage that cheaper clothes _ . - can sometimes fit you better - must be dry cleaned - are always worse made - can not be washed
Ans: can sometimes fit you better

Ques: Read the following article and select the best answer. Article: 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 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 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 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. Question: What can we learn from Darwin in the passage? - He is curious. - He is careful. - He is foolish. - He is cleverer than all the people.
Ans: He is curious.

Ques: Read the following article and select the best answer. Article: The Maryland Science Center is more than fun. You can enjoy the First three floors of exciting things, watch the larger-than-life play on the 4th floor, and travel to other worlds, to far away stars, on the 5th floor. Don't just look. You arc expected to feel, to turn, to push. Build your own house and learn why it stands or fails. Use computers to work out plans just as famous scientiats have done. There is always something new to Learn at the Maryland Science Center. Children and group visitors enjoy half price. The excitement of the Maryland Science Center does not end when you leave. Visit the Science Store for gift you'd like to keep. Electronic jewelry, games, books, and more - take part of the Science Center home with you. Important information : Where to call 24 hour general information (410)685 -5225 24 hour STARLINE night sky information (410)539 STAR Group visitor information (410 ) 685 - 2370 Hours The Maryland Science Center open 7 days a week (except Thanksgiving Day and Christmas Day). Monday - Friday 10 a.m. - 6 p. m. Saturday and Sunday 10 a. m. -8 p. ra. Question: The Maryland Science Center stays open - every day from 10 a. m. to 8 p. m. - almost all the weekdays and weekends - on Thanksgiving Day and Christmas Day - 4.24 hours a day, 7 day>> a week
Ans:
almost all the weekdays and weekends