课时作业(十七)
必修4 Unit 2 Working the land
基础检测
词性转换
ause I'm using a lot of expensive ________ (equip)．
________ (occupy)．
eased so rapidly, people would have had more space and ________ (free)．
many children died of ________(hungry) every year.
5．His answers to my questions have only added to my ________(confuse)．
单句填空
________ (comment) on his article like that.He must be angry with my words.
7．We would rather our daughter ________(stay) at home with us, but it is her choice, and she is not a child any longer.
8．An average of just 18.75cm of rain fell last year, making ________ the driest year since California became a state in 1850.
9．Most Americans say gun control is the only way they can imagine ________(reduce) the number of school shootings in some American high schools.
10．________(satisfy) with what I said，mother agreed that I could go swimming with my classmates.
短语填空
(幸亏) the support from the local government，they could rebuild their houses soon after the earthquake.
________________(聚集) fat stores throughout
summer and fall to have energy enough to last them through their winter sleep.
As is known to us all，success lies in hard work while laziness ________________ (导致) failure.
________________ the children and old ________________ (使……免受) the polluted vegetables.
______________ (关注) the problem.
句型训练
on the hybrid rice, farmers are producing harvests ________________．(large)
多亏了袁隆平的杂交水稻研究，农民们的收成比以前多了一倍。
__________________________________．(would )
事实证明看电视对孩子的学习有害，因为孩子更愿意看电视而不愿意做作业。
this special strain of rice ________________ for farmers to produce one third more of the crop in the same field.(possible)
如今，这种特别的大米品种能让农民在同一块地上增加三分之一的产量。
19I wish I could go back to my school days; I regret ________________________________ at that time.(study)
我希望能回到学生时代；我真后悔那时没有更加刻苦地学习。
she felt very uneasy with ________________ her. (focus)
当Lisa站在观众面前的时候，所有的目光都集中在她的身上，她感到很不自在。
能力提升
阅读理解
buying CocaCola and Pepsi, believing that the sugar in the fizzy(起泡的) drinks kills pests.
and they found the mixture cheaper and more effective than pure chemicals—although soft drink makers and scientists dismissed the remarks. N. Hamunayya, who has become a famous person in his village in the southeastern state of Andhra Pradesh, said his crop survived an attack of pests which had resisted other pesticides. “We found that all the cola had a uniform effect on pests. The pests became dead and fell to the ground，” he said. He said the drinks had all the elements they needed: they were cheaper, sticky, fizzy, and attracted ants, which ate the young of the pests. But Thirupathi Reddy, assistant director of the Regional Agriculture Research Station, Guntur, said tests had proved such results wrong. “We conducted some field trials on cotton crop at our research station. There was no obvious productivity or destruction of pests，” he said.
Statements from Pepsi and CocaCola said there was “no scientific basis” for this__practice. But their dealers are enjoying increasing sales. Mantan Wall, who sells soft drinks in 17 villages in the region, said sales rose up, thanks to the farmers. “For the 10 days between August and September I had successful business. Instead of just 30 cases(each containing a dozen onelitre bottles) of cola, I started selling almost 200 cases，” he said. “We expected the sales to drop after the news over pesticide residues(残留) in the cola drinks. Now I have to keep extra supply for the cotton farmers,” he said.
In February, an Indian environment group made a report saying drinks made by CocaCola and Pepsi contained pesticides and called for tougher safety standards. The US firms strongly rejected the findings of the New Delhibased Centre for Science and Environment and said their products were safe.
21．The writer's purpose of writing this passage is to ________.
A．tell an interesting incident
B．warn people that some drinks might be dangerous to health
C．suggest using CocaCola to kill pests
D．announce a new discovery of CocaCola
22．The drink makers wouldn't accept the fact that their drinks could kill pests because
________．
they thought it went against science
B．they believed that the farmers didn't tell the truth
C．they might fear that it could bring harm to their business
D．they insisted that no poison was left in their products
23．The underlined part “this practice” in Para.3 probably refers to “________”．
Atesting the mixture
B．selling more drinks in India
C．mixing the drinks with pesticides
D．attracting ants to eat the young pests
24．The drinks can kill pests because ________．
there are some pesticides left in them
B．they are sticky and fizzy
C．they have elements that kill pests
D．they made pesticides more effective
Ⅵ.阅读七选五
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
“I will think of it.” It is easy to say this. __25__ We cannot see our thoughts, or hear, or taste, or feel them; and yet what mighty power they have!
Sir Isaac Newton was seated in his garden on a summer's evening, when he saw an apple fall from a tree. __26__ Later, he discovered how the earth, sun, moon, and stars were kept in their places.
__27__He began to think; he wanted to find out why the steam in the kettle moved the heavy lid. From that time he went on thinking and thinking. When he became a man, he improved the steam engine so much that it could, with the greatest ease, do the work of many horses. __28__
A man named Galileo was once standing in the cathedral of Pisa, when he saw a chandelier swaying to and fro. This set him thinking, and it led to the invention of the pendulum.
Boys, when you have
a difficult lesson to learn, don't feel discouraged, and help yourselves before asking someone to help you. __29__
A．But do you know what great things have come from thinking?
B．Think, and by thinking you will learn how to think to some purpose.
C．A boy named James Watt sat quietly by the fireside, watching the lid of the tea kettle as it moved up and down.
D．And do you know how to think?
E. When you see a steamboat, a steam mill, remember that it would never have been built if it had not been for the hard thinking of someone.
F. He began to think, trying to find out why the apple fell.
G. He was a famous physicist and good at thinking.
Ⅶ.短文改错
I sat next to an old lady who looked very scary. She closed her eyes tightly and grasped her red bag on her lap. I thought I might be nervous, so I planned to chat with her to make her to feel relaxed. We talk a lot about our families and experiences. When the flight over, I also helped her carry her luggages. She was so grateful about my help that she gave me the big hug when we were going to leave. On our way out, we waved goodbye. She kept on turning back to see me unless we couldn't see each other any long.
课时作业(十七)
【基础检测】
Ⅰ.1.equipment 2.occupation 3.freedom 4.hunger 5.confusion
Ⅱ.6.commenting 7.stayed 8.it 9.to reduce
10．Satisfied
Ⅲ.11.Thanks to 12.build up 13.leads to
14．keep；free from 15. focus on
Ⅳ.16.twice as large as before
17．would rather watch TV than do their homework
18．makes it possible
19．not studying harder/not having studied harder
20．all (the) eyes focused on
【能力提升】
Ⅴ.21.A 22.C 23.C 24.D
Ⅵ.25.A 26.F 27.C 28.E 29.B
Ⅶ.On the flight, I sat next to an old lady who looked very scary. She closed her eyes tightly
scared
and grasped her red bag on her lap. I thought I might be nervous, so I planned to chat with her to
she
make her
feel relaxed. We talk a lot about our families and experiences. When the flight ∧
talked
was
over, I also helped her carry her luggages. She was so grateful about my help that she gave me the
luggage
for
a
big hug when we were going to leave. On our way out, we waved goodbye. She kept on turning back to see me unless we couldn't see each other any long.
until
longer