Do you know why different animals or insects have their （1）ownown/??n/ colors？Because they can use different colors to keep themselves safe.
Some birds feed on insects，but it's not easy for them to（2）catchcatch/k?t?/ locusts（蝗蟲）.Why？It is because locusts change（3）theirtheir （ they） colors together with the change of the colors of the crops.When crops are green，locusts look green.When crops are brown，locusts change to （4）thethesame color.Some other insects have to（5）appearappear （ appear） only at night.It is because they have colors different（6）fromfrom plants and birds can find them and eat them.
If you study the animal life，you'll find the main use of coloring is to protect themselves.Tigers，lions and other animals move quietly through（7）forestsforests （ forest）.The small animals cannot find them（8）becausebecause they have the colors much like the trees and grass.
In the sea，there's a kind of fish with a soft body.It is not strong at all，but it can send out black liquid（液體） when it（9）facesfaces danger.While the liquid spreads（展開） over，its enemies（敵人） can't find it.And it（10）quicklyquickly/?kw?kli/ swims away.That's why we can still see it in the sea.
【答案】own；catch；their；the；appear；from；forests；because；faces；quickly
【解答】
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發(fā)布：2024/9/28 1:0:2組卷：22引用：1難度：0.4
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根據(jù)短文和圖表內(nèi)容，選擇最佳答案。
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B．1 to 3 hours
C．more than 4 hours
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A．Eating more fruit.
B．Reading on line.
C．Going to the park.
D．Working hard on schoolwork.
（5）Which of the following statements is true？
A．The survey only shows the time spent chatting online.
B．For all the students，chatting on the Internet is more popular than playing computer games.
C．Compared with chatting online，girls prefer playing computer games.
D．Most of the girls play computer games for less than an hour.發(fā)布：2024/12/18 5:0:1組卷：6引用：3難度：0.6 -
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