?When John Todd was a child，he loved to explore the woods around his house，observing how nature solved problems.A dirty stream，for example，often became clear after flowing through plants and along rocks where tiny creatures lived.When he got older，John started to wonder if this process could be used to clean up the messes people were making.
?After studying agriculture，medicine，and fisheries in college，John went back to observing nature and asking questions.Why can certain plants trap harmful bacteria（細(xì)菌）？Which kinds of fish can eat cancer-causing chemicals？With the right combination of animals and plants，he figured，maybe he could clean up waste the way nature did.He decided to build what he would later call an eco-machine.
?The task John set for himself was to remove harmful substances from some sludge（污泥）.First，he constructed a series of clear fiberglass tanks connected to each other.Then he went around to local ponds and streams and brought back some plants and animals.He placed them in the tanks and waited.Little by little，these different kinds of life got used to one another and formed their own ecosystem.After a few weeks，John added the sludge.
?He was amazed at the results.The plants and animals in the eco-machine took the sludge as food and began to eat it!Within weeks，it had all been digested，and all that was left was pure water.
?Over the years，John has taken on many big jobs.He developed a greenhouse-like facility that treated sewage （污水）from 1，600 homes in South Burlington.He also designed an eco-machine to clean canal water in Fuzhou，a city in southeast China.
?"Ecological design"is the name John gives to what he does."Life on Earth is kind of a box of spare parts for the inventor，"he says."You put organisms in new relationships and observe what's happening.Then you let these new systems develop their own ways to self-repair."
（1）What can we learn about John from the first two paragraphs？ CC
A．He was fond of traveling.
B．He enjoyed being alone.
C．He had an inquiring mind.
D．He longed to be a doctor.
（2）Why did John put the sludge into the tanks？ DD
A．To feed the animals.
B．To build an ecosystem.
C．To protect the plants.
D．To test the eco-machine.
（3）What is the author's purpose in mentioning Fuzhou？ BB
A．To review John's research plans.
B．To show an application of John's idea.
C．To compare John's different jobs.
D．To erase doubts about John's invention.
（4）What is the basis for John's work？ AA
A．Nature can repair itself.
B．Organisms need water to survive.
C．Life on Earth is diverse.
D．Most tiny creatures live in groups.
【考點】環(huán)境保護(hù)；記敘文．
【答案】C；D；B；A
【解答】
【點評】
聲明：本試題解析著作權(quán)屬菁優(yōu)網(wǎng)所有，未經(jīng)書面同意，不得復(fù)制發(fā)布。
發(fā)布：2024/5/1 8:0:8組卷：348引用：17難度：0.5
相似題
-
1．More than half of the food produced in Canada goes to waste．A shocking new study has shown that the level of food waste is far worse than previously thought，at 58%．Of that，about 85% of food waste is due to food processors．This differs from earlier studies，which criticized families for driving food waste and said they were responsible for 51% of food waste．
The study was carried out by Martin Hooch，the leading expert on food waste and the author of several previous studies on the subject．Reflecting on the study's findings，Hooch said，"It means stopping criticizing consumers．Sure，consumers are part of the problem，but they're not the problem．"
In the past，Hooch didn't master good data，particularly from the private factories，but relied on numbers collected by the food industry for purposes other than tracking（追蹤） waste．This time，however，Hooch worked directly with companies at all stages along the food production chain and interviewed over 700 experts in the industry．Clearly he found it hard to believe what he was seeing．
This is what they found：Food processing causes 34% of food waste．This is followed by production，which causes 24%．Next is manufacturing at 13%，then hotels and restaurants at 9%．Families cause only 14%，and market sales 6%．This should be a serious wake-up call for Canadians who would do well to examine their own food supply chains．Food waste is costly，not only in terms of dollars wasted，but also in resources like land，water，and so on．To be using these resources and wasting the product is totally irresponsible and unnecessary．
To make matters worse，when food is thrown into rubbish cans，it produces methane，a greenhouse gas 30 times more powerful than carbon dioxide （CO2）．At Canada's rate of food waste，that's like adding 12 million cars to the road．It seems that the food industry needs redesigning．Therefore，let's hope the government takes action．
（1）What did earlier studies say about food waste in Canada？
A．Food waste was better than expected．
B．Food went bad when it was processed．
C．Most of the food was wasted on purpose．
D．Families were to blame for food waste．
（2）How did Hooch do his study on food waste this time？
A．By studying data from the industry．
B．By tracking the whole production chain．
C．By collecting advice from experts worldwide．
D．By drawing a conclusion from the previous studies．
（3）Why does food waste have an effect on the environment？
A．Because it is harmful to the trees．
B．Because it pollutes the soil around it．
C．Because it gives off unpleasant smells．
D．Because it produces more greenhouse gas．
（4）What is the main idea of the text？
A．Canadians don't like to save food for future．
B．More than half of the food is wasted in Canada．
C．Families are mainly responsible for food waste．
D．The food industry is better redesigned in Canada．發(fā)布：2024/12/5 0:0:1組卷：9引用：5難度：0.5 -
2．It's just another day for William Lindesay．It begins by spending some time with his sons …and the Great Wall of China．He has lost count of the number of times he（1）
（climb） the wall．However，he still remembers the day he first saw（2）．
The UK native first came to China in 1986 with（3）（plan） to run the wall's entire（4）（long），but it didn't quite work out that time．He came back a year later and fulfilled his dream，before finally （5）（settle） in China in 1990．Lindesay has had eight books on the Great Wall（6）（publish） over the years．He has completed three photo projects that show（7）it has changed with the passage of time and led conservation efforts to protect it．Now he and his Chinese friends are using drones（無人機）（8）（film） the Great Wall，which provides a（9）（complete） new and fascinating perspective．
In many ways，the Great Wall has defined Lindesay's life．His solo adventure was described as "the most successful foreign exploration of the Great Wall"．He even received a medal（10）the Chinese government for his conservation efforts．發(fā)布：2024/12/17 12:2:24組卷：60引用：3難度：0.5 -
3．Longjing tea，（1）
has topped the list of the ten most famous teas in China with its color，taste and shape，（2）（name） after its region of production - Longjing Village of West Lake．The good environment and water resources are good for the（3）（grow） of the tea，confirming （證實） the saying that "Longjing tea is the （4）（good） among all of the teas in the world"．
Thanks （5）Emperor Qianlong of the Qing Dynasty，the tea has earned a high reputation．It is said that Emperor Qianlong visited a mountain of Longjing Village of West Lake on his travels in Hangzhou，and he saw some ladies picking the tea at（6）foot of the mountain．He was so interested in their movements that he decided to have a go himself．
While （7）（pick） the tea，he received the news of his mother's illness，so he carelessly put the leaves in his pocket and（8）（leave） Hangzhou for Beijing．He visited his mother （9）（immediate） upon his arrival in Beijing，and his mother smelt the pleasant smell of the tea leaves from his pocket and wanted to have a taste．After drinking a cup of tea，she found herself completely （10）（energy），and she even praised it as a cure for all illnesses．發(fā)布：2024/11/20 13:30:1組卷：102引用：9難度：0.6
把好題分享給你的好友吧~~