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Unlike humans who enter a state of relatively complete unconsciousness（無意識） while sleeping，birds can more carefully control their sleep.Birds often sleep with one eye open，only half their brain resting at the same time.The other half of the brain is awake，able to note danger ifneeded.
   While the exact way in which birds control their sleep patterns（模式） has not been well studied，it has been shown that the safer a bird feels when sleeping，the more likely it is to sleep deeper.If the situation is more uncertain，however，the bird will sleep more lightly.
   Sleeping together is another defensive method that many birds use.By living together，some species can create a nighttime place where thousands of individuals sleep.As a result，there are more birds to notice their enemies' attack，giving each individual bird a greater chance of survival.In winter，many birds，particularly s mall birds，live together to share body heat and survive lower nighttime temperatures.
   When birds sleep，they bury weak body parts in their feathers（羽毛）.A bird's feathers create air pockets that help it keep warm，and by placing feet or the bill（喙） into the feathers，less body heat is lost.When a bird's bill is buried deeply in its feathers，it is also able to breathe air warmed by its own body heat.
   There is little data about how long birds sleep at a time，but studiés show that birds may sleep longer during longer nights.This may be because birds are not able to search for food or take part in other activities without enough light and so sleeping is the next natural item on their to-do lists.Birds are able to sleep for a short time during the day，however，and can also sleep longer whenever they are in a safe place.

（1）How can birds control their sleep？
D
D

A．By opening both of the eyes.
B．By ignoring danger frequently.
C．By entering a dream completely.
D．By keeping half of the brain awake.
（2）What is Paragraph 2 mainly about？
D
D

A．Birds' condition.
B．Birds weight.
C．Birds' feelings.
D．Birds' sleep patterns.
（3）Why do birds sleep together according to Paragraph3？
B
B

A．They can attack their enemies.
B．They can protect themselves well.
C．They can lower body temperatures.
D．They can share body heat in summer.
（4）Where do birds put their weak body parts while sleeping？
A
A

A．Into their feathers.
B．Into their feet.
C．Into their mouths.
D．Into their skin pockets.
（5）What can be inferred from the last paragraph？
C
C

A．Birds can search for food in weak light.
B．Birds should plan their activities more carefully.
C．Birds can usually sleep longer at night in winter.
D．Birds should place sleeping first on their to-do lists.

【考點(diǎn)】說明文．

【答案】D；D；B；A；C

【解答】

【點(diǎn)評】

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發(fā)布：2024/5/27 14:0:0組卷：1引用：1難度：0.4

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（1）How much does an average driver save each day by driving a hybrid，according to the Toyota spokesman？

A．＄30．
B．＄20．
C．＄10．
D．＄7．
（2）Terrence's problem with his HEV at the moment is about the

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A．speed
B．power
C．price
D．service
（3）When saying "extraordinary"，Terrence thinks it is

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A．understandable
B．wonderful
C．doubtful
D．unbelievable
（4）What does Terrence think prevent the popularity of hybrid cars？

A．The difficulty in servicing the car．
B．The restriction of the government．
C．The lack of information about HEV．
D．The inconvenience with charging the car．
發(fā)布：2024/11/16 20:30:1組卷：17引用：4難度：0.6
解析
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   Around the world，travel plans have been severely affected，and tens of millions of people remain at home as part of global efforts to fight against coronavirus．Supermarkets have seen shortages of toilet paper and hand sanitizer as anxious consumers stockpile the products．
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（1）What does the underlined word "sought-after" in paragraph 2 probably mean？

A．Practical
B．Amusing
C．Popular
D．Confusing
（2）What is the third paragraph mainly about？

A．Price for a try．
B．Prizes of the game．
C．New practice of the game．
D．People's love for grabbing toys．
（3）What's the purpose of Braddick's new idea？

A．To make higher profits．
B．To ease people's anxiety．
C．To support his family business．
D．To attract more people to play the game．
（4）What can be inferred from the passage？

A．Tourism may fall into a decline．
B．Braddick's business is experiencing a hard time．
C．Cleaning products will be in shortage for a long time．
D．Everyone in the park is told to wash their hands every half hour．
發(fā)布：2024/11/17 4:30:2組卷：10引用：1難度：0.4
解析
3．For many kids，the Internet is at their fingertips．From computers to smartphones，a web of information is open to them．According to a new report，about three out of four kids aged 12 to 15 connect the Internet using a mobile device from time to time．Many younger kids are online too．
   Julian Zeitlinger，9，from New Jersey，uses his computer to watch videos and play games．To keep him safe online，his parents monitor his web use and discuss Internet safety with him． "I ask my parents whether something is nice or bad，" Julian says．
   Mobile devices offer more ways than ever to share personal information．The information can be dangerous in the wrong hands．A study found that 62% of children aged 8 to 17 have had an unpleasant online experience．
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（1）Julian's parents check his web use to make sure

．
A．he doesn't watch too many videos
B．he doesn't play computer games
C．he controls his online time
D．he stays safe on the Internet
（2）What's one of the changes with COPPA？

A．It broadens the concept of personal information．
B．It prevents users from making their location public．
C．It covers everything that goes wrong online．
D．It says no to any kind of advertising．
（3）People often hold the wrong idea that

．
A．formal websites are always safe
B．the Internet is becoming safer and safer
C．COPPA can ensure their complete safety
D．daily checks prevent future online problems
（4）Why does the author write the passage？

A．To ask parents to look out for their kids．
B．To talk about online safety for children．
C．To introduce a new law．
D．To sell an online product．
發(fā)布：2024/11/17 6:0:1組卷：65引用：5難度：0.5
解析

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