-What caused the accident? -It was my fault, sir. I to the left. A. ought not to have turned B. needn’t have turned C. shouldn’t turn D. couldn’t turn 题目和参考答案——青夏教育精英家教网—

题目内容

—What caused the accident?

—It was my fault, sir. I _____ to the left.

A. ought not to have turned B. needn’t have turned

C. shouldn’t turn D. couldn’t turn

解析:

本题的语意环境为：是我导致了这场事故，我本不该向左拐。ought not have done=shouldn’t have done本不该做某事；needn’t have done：本来没有必要做某事而做了。故选A。

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Most of us are used to seasons. Each year, spring follows winter, which follows autumn, which follows summer, which follows spring. And winter is colder than summer. But the earth goes through temperature cycles over much longer periods than those that we experience. Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.

A new study from Switzerland, sheds light on where ice sheets melted during the ice age. It now seems that the ice melted at both ends of the earth, rather than just in either northern or southern regions.

This surprised the researchers from the University of Bern. Scientists have long assumed that most of the ice that melted was in the Northern hemisphere(半球) during the 30,000-year long ice age. That belief was held because the North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. It is easier for ice sheets to grow on land. If surrounded by sea the ice can easily just slip into the ocean instead of building up.

The researchers used a computer model to look at ways the ice could melt and how it might affect sea levels. They compared these results to evidence of how temperatures and currents actually changed during that time. The model showed that if it was only in the Northern hemisphere that ice melted, there would have been a bigger impact(影响) on ocean currents(洋流) and sea temperatures than what actually happened. Studies suggest that melting just in the Southern hemisphere would have been impossible, too. The only reasonable conclusion, the scientists could make, was that ice melted equally in the North and the South.

It is still a mystery as to what caused the temperature changes that caused the ice to melt.

The North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. So scientists thought that ________.

A. most of the ice melted in the Northern hemisphere

B. most of the ice melted in the Southern hemisphere

C. The North Pole is colder than South Pole

D. The South Pole is colder than North Pole

We can infer from the passage ________.

A. the ice can easily just slip into the ocean

B. volcanoes caused the ice to melt

C. melting just in the Northern hemisphere would have been impossible

D. researchers often use the computer models help their research work.

The scientists are not sure ________.

A. how long the ice age lasted

B. where ice sheets melted during the ice age

C. what caused the temperature changes

D. what the earth is made up of

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A. A computer model

B. Studies show ice melted equally in the North and the South during the ice age

C. Most of the ice melted in the Northern hemisphere during the 30,000-year long ice age.

D. A survey result

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In the 1920s demand for American farm products fell, as European countries began to recover from World War I and started austerity （紧缩） programs to reduce their imports．The result was a sharp drop in farm prices．This period was more disastrous for farmers than earlier times had been, because farmers were no longer self-sufficient．They were paying for machinery, seed, and fertilizer, and they were also buying consumer goods．The prices of the items farmers bought remained constant, while prices they received for their products fell．These developments were made worse by the Great Depression, which began in 1929 and extended throughout the 1939s．
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President Hoover's successor attached even more importance to this problem．One of the first measures proposed by President FranklinD．Roosevelt when he took office in 1933 was the Agricultural Adjustment Act, which was later passed by Congress．This law gave the Secretary of Agriculture the power to reduce production through voluntary agreements with farmers who were paid to take their land out of use．A deliberate shortage of farm products was planned in an effort to raise prices．This law was declared unconstitutional （违背宪法的） by the Supreme Court on the grounds that general taxes were being collected to pay one special group of people．However, new laws were passed immediately that achieved the same result of resting soil and providing flood-control measures, but which were based on the principle of soil conservation．The Roosevelt Administration believed that rebuilding the nation’s soil was in the national interest and was not simply a plan to help farmers at the expense of other citizens．Later the government guaranteed loans to farmers so that they could buy farm machinery, hybrid （杂交） grain, and fertilizers．
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阅读下面短文，掌握其大意，然后从36－55各题所给的四个选项（Ａ、Ｂ、Ｃ和Ｄ）中，选出最佳选项，并在答题卡上将该项涂黑。

Terry was a middle-aged leather trader whose repeated failure in career made him a depressed man, often __36__ that he had been cheated by others. One day he told his wife he was so __37__ with the city that he had to leave.

So his family moved to another city. It was the evening of a weekend. When Terry and his wife were busily __38__ up their new home, the light suddenly __39__. Terry was regretful to have forgotten to bring along __40__ and had to wait __41__ in a low mood. Just then he heard light, hesitant __42__ on his door that were clearly audible (听到) in the __43__ night.

“Who’s it?” he wondered, since Terry was a __44__ to this city. And this was the moment he especially hated to be __45__, so he went to the door and opened it __46__. At the door was a little girl, shyly asking, “Sir, do you have candles? I’m your neighbor. ” “No,” answered Terry in anger and shut the door __47__. “What a nuisance!” He complained over it with his wife. “No sooner had we settled down than the neighbor came to __48__ things.”

After a while, the door was knocked again. He opened it and found the same girl outside. __49__ this time she was __50__ two candles, saying, “My grandma told me the new neighbor downstairs might need candles. She __51__ me here to give you these.” Terry was very __52__ by what he saw.

At that moment he suddenly realized what caused his __53__ in life. It was his __54__ and harshness (刻薄) with other people. The person who had cheated him in life was __55__ nobody else but himself, for his eyes had been blurred (蒙蔽) by his unsympathetic mind.

A．complaining

B．telling

C．hoping

D．pretending

A．pleased

B．disappointed

C．exhausted

D．encouraged

A．looking

B．turning

C．coming

D．tidying

A．went on

B．went down

C．went out

D．went through

A．candles

B．matches

C．lights

D．flashlights

A．happily

B．patiently

C．hopefully

D．helplessly

A．steps

B．words

C．knocks

D．screams

A．dark

B．quiet

C．noisy

D．crowded

A．newcomer

B．stranger

C．guest

D．settler

10.

A．called

B．disturbed

C．watched

D．offered

11.

A．surprisingly

B．delightedly

C．impatiently

D．willingly

12.

A．gently

B．kindly

C．politely

D．violently

13.

A．lend

B．sell

C．harness

D．borrow

14.

A．And

B．But

C．So

D．For

15.

A．holding

B．hiding

C．fetching

D．lifting

16.

A．suggested

B．commanded

C．sent

D．forced

17.

A．frightened

B．pleased

C．puzzled

D．surprised

18.

A．failure

B．success

C．complaint

D．determination

19.

A．warmth

B．coldness

C．kindness

D．sympathy (同情)

20.

A．doubtfully

B．hardly

C．actually

D．nearly

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