相關(guān)習(xí)題
 0  144836  144844  144850  144854  144860  144862  144866  144872  144874  144880  144886  144890  144892  144896  144902  144904  144910  144914  144916  144920  144922  144926  144928  144930  144931  144932  144934  144935  144936  144938  144940  144944  144946  144950  144952  144956  144962  144964  144970  144974  144976  144980  144986  144992  144994  145000  145004  145006  145012  145016  145022  145030  159627 

科目: 來源: 題型:

【題目】 For a long time, scientists believed that only humans were left-or right-handed. However, recent studies have shown that this isn’t true. Just like people, animals favor one side or the other.

In Ireland, scientists studied a group of 42 cats. They gave them three tasks. One was to get a delicious piece of fish out of a bottle. They found that the male cats preferred to use their left paw, and the female cats preferred to use their rights.

Being left-or right-handed isn't limited (有限的) to arms and legs. It can include eyes, ears, claws, and even tails. In Italy, scientists discovered that dogs wag their tails to the right when they see something that they like. When they see something that they don’t like, their tails go to the left.

There are lots of fun examples. Left-handed dolphins swim in a different direction around the pool. Elephants like to swing their trunks in one direction. Even snakes prefer to curl up only one way.

Many people believe that polar bears are left-handed. They say, for example, that polar bears cover their black nose with their right paw, which helps them hide in the snow when they are hunting. Then they can sneak up(慢慢靠近) on a seal, and their left paw will be free to catch it.

Scientists, however, disagree. Some have watched polar bears for thousands of hours. They never saw the bears cover their nose during a hunt. They also saw no evidence(根據(jù)) that they were left-handed. Without taking any notice of this, many websites continue to say that polar bears are left-handed.

Scientists are still learning about animals and their behaviors. The next time you see an animal, whether it’s your pet cat or an elephant, try figuring out yourself which it prefers - left or right.

1The underlined word"favor"in paragraph 1 is closest in meaning to .

A.giveB.findC.seeD.prefer

2In paragraph 2, we can get the information about .

A.an Irish scientist who studies catsB.a study about cats and its findings

C.three tasks done by male and female catsD.an introduction on how cats get fish

3Which one of the following statements is true about polar bears?

A.It's believed that polar bears are left-handed for they use their left paw to cover their nose.

B.The findings that polar bears cover their nose while hunting is supported by scientists.

C.Scientists disagree with the popular belief that polar bears are left-handed.

D.The information from many websites that polar bears are left handed is believable.

4The purpose of this passage is mainly to .

A.introduce recent studies of animalsB.explain why some animals are left-handed

C.tell us which side animals preferD.learn about animals in different countries

查看答案和解析>>

科目: 來源: 題型:

【題目】A:What would some students like to do after finishing their education?

B:They would like to start to work___they needn't depend on their parents.

A. as soon as B. although C. if D. so that

查看答案和解析>>

科目: 來源: 題型:

【題目】— ______ football cards are these? — They are my football cards.

A. Whoes B. Who’s C. Who’re D. Whose

查看答案和解析>>

科目: 來源: 題型:

【題目】 —Is this a nice school? —__________.

A. Yes, it is. B. No, this isn’t.

C. Yes, this is. D. No,there isn’t.

查看答案和解析>>

科目: 來源: 題型:

【題目】Last year, three hundred English teachers took part in the___ English training.

A. two-months B. two months

C. two- month. D. two month

查看答案和解析>>

科目: 來源: 題型:

【題目】— Which do young people prefer, music or sports?

— Both. Music is ________ sports.

A. as popular as B. not as popular as

C. more popular than D. less popular than

查看答案和解析>>

科目: 來源: 題型:

【題目】—Can you show me your photo?

—_______ Here you are.

A. Really? B. Not really. C. Sure. D. Good idea!

查看答案和解析>>

科目: 來源: 題型:

【題目】Mrs Lin advised the students___with friends online and said it was a waste of time.

A. to stop to chat B. to stop chatting

C. stop to chat D. stopping to chat

查看答案和解析>>

科目: 來源: 題型:

【題目】He ____ his homework this morning.

A. do B. did C. to do

查看答案和解析>>

科目: 來源: 題型:

【題目】

1What can be learned from the sentence "Last year' s show sold out in SIX MINUTES!"?

A.Tickets are supposed to be bought in no less than six minutes.

B.You could buy last years tickets if one more minute was given.

C.The shows are popular and you need to buy tickets quickly.

D.You will just have six minutes to buy tickets this year.

2According to the ad, we can know that .

A.Fluffy Puppy will sing before the Sowat Brothers

B.the concert will take place outdoors at night

C.tickets for the concert can be bought at several places

D.the Sowat Brothers are not as popular as they used to be

3Which of the following is the name of one song that the Sowat Brothers sing?

A.“ Back in Town”B.“Concert Come back”

C.“ Close the Book on love”D.“Don't Devour My Heart”

查看答案和解析>>

同步練習(xí)冊答案