當前位置：人教版（2019）必修第二冊《Unit 3 The Internet》2021年單元測試卷（1）> 試題詳情

Trees，some of the tallest in the world，towered above Hannah Griffiths and her colleagues each morning as they walked deep into the rainforest in the Maliau Basin in Borneo，where they had set up a set of experiments to look at the ecological effects of small creatures：termites （白蟻）.
   Termites get a bum rap.They make headlines for chewing up billions of dollars of property each year in the US.And they are responsible for something like two percent of global carbon emissions，simply as a result of their huge populations and preference for chewing through carbon-rich materials.A whole industry is aiming at killing them.
   But they play a key role in many natural ecosystems.Scientists have known for years that in tropical （熱帶的） forests，termites chew up fallen leaves and dead wood，keeping the fallen material under control and letting nutrients from the dead material back into the system to be used by other plants，insects，and animals.But they didn't know exactly how important the insects were in keeping the forest healthy and functional，so they removed termites from a particular spot in the forest and saw how it responded.
   As luck would have it，Hannah Griffiths and her colleagues started their experiment when the forest was hit by an extreme drought.During the non-drought years，they saw there wasn't much difference between the normal plots and the ones where they'd removed the termites.But during the drought，the effects were marked.What they found was unexpected：in the termite-rich areas，the soil stayed slightly wet，more tree seedlings sprouted（抽芽），and the system was full of activity despite the long，hard dry spell.
   For Griffiths，it was only because they happened to study the drought that they could pick out the real importance of termites to the system，she points out."And that rings alarm bells in my head，" she says，"because it makes me think，well，what else don't we know？If we start damaging biological communities，we don't know what that will do."

（1）Which of the following best explains "a bum rap" underlined in Paragraph 2？
A
A

A．Unfair blame.
B．Wide popularity.
C．Public attention.
D．Special preference.
（2）What have scientists learned about termites？
B
B

A．They do serious harm to tropical rainforests.
B．They contribute a lot to the ecosystem they live in.
C．They act as food for other plants，insects and animals.
D．They speed up the loss of nutrition in the rainforest.
（3）What can we infer from the finding of Griffiths' experiment？
A
A

A．Termites help rainforests survive climate change.
B．Termites prefer drought years to non-drought ones.
C．Termites benefit more from the forest during the drought.
D．Termites enjoy eating tree seedlings during the drought.
（4）What does Griffiths tell us in the last paragraph？
C
C

A．Termites are now in danger of extinction.
B．Termites damage biological communities.
C．We should think twice before damaging a species.
D．We should study the drought to improve the system.

【考點】記敘文；說明文．

【答案】A；B；A；C

【解答】

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發(fā)布：2024/11/7 22:30:1組卷：9引用：1難度：0.5

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1．Florence Nightingale was born in a rich family.When she was young，she took lessons in music and drawing，and read great books.She also travelled a great deal with her mother and father.
   As a child，she felt that visiting sick people was both a duty and a pleasure.She enjoyed helping them.
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（1）When she was a child，F(xiàn)lorence

.
A．wrote a book on public health
B．knew what her duty in life was
C．loved to help the sick people
D．was most interested in music and drawing
（2）During the Crimean War in 1854，F(xiàn)lorence served in the front hospital where

.
A．she earned a lot of money
B．work was very difficult
C．few soldiers died because of her work
D．she didn't have enough food and clothes
（3）Why was Florence honoured by Queen Victoria？

A．Because she built the Nightingale Home for Nurses.
B．Because of her old age.
C．Because she worked as a nurse all her life.
D．Because she did a great deal of work during the Crimean War.
（4）The passage can be best described as

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A．the life story of a famous woman
B．a(chǎn) description of the nursing work
C．a(chǎn)n example of successful education
D．the history of nursing in England
發(fā)布：2024/11/7 11:30:1組卷：6引用：2難度：0.5
解析
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   "She stood out from the start，" Glazounov says． "She exhibited that desire．She loves to impress and she wanted it always．No one ever had to tell her to work hard．"
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（1）What do we know about Morgan Hard？

A．She is a poor child who has a single mother．
B．She is an orphan who was adopted from China．
C．She is the gymnast who competed wearing glasses．
D．She is an athlete who first won the champion at 16．
（2）Why did Sherri take a job for Discover Bank？

A．She enjoyed working at home．
B．She didn't like the previous one．
C．She needed a thorough career change．
D．She could give her full support to Morgan．
（3）Which of the following best describes Morgan Hard？

A．Tiny and perfect．
B．Talented and Outstanding．
C．Flexible but incapable．
D．Passionate but proud．
（4）In which column of a website can you most probably read this text？

A．Culture．
B．Sports．
C．Travel．
D．Job．
發(fā)布：2024/11/7 15:30:4組卷：7引用：1難度：0.5
解析
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（1）Which word can best describe Marseille according to the first paragraph？

A．Remote.
B．Commercial.
C．Industrial.
D．Inland.
（2）What made the author leave the Algerian restaurant？

A．The unreasonable charge.
B．The unbearable flavor.
C．The unsatisfying service.
D．The noisy atmosphere.
（3）Why do the newcomers choose Marseille rather than other big cities？

A．To make a fortune.
B．To experience a dish.
C．To learn a language.
D．To live a leisurely life.
（4）In which column of a magazine can we probably read the text？

A．Fashion.
B．Food.
C．Trade
D．Travel.
發(fā)布：2024/11/7 13:30:2組卷：7引用：3難度：0.3
解析

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