题目内容

Is this the reason _______ he was late for the meeting?

A. why B. when C. where D. what

A

【解析】

试题分析:考查定语从句。先把原句改为陈述句:This is the reason________ he was late for the meeting.,可以看出,先行词是the reason,定语从句“he was late for the meeting”是主系表结构,不缺少成分,用关系副词why引导,what不用于定语从句,故选A。

考点:考查定语从句

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Half of the world’s population is affected by Asian monsoons(季风), but monsoons are difficult to predict. American researchers have put together a 700-year record of the rainy seasons, which is expected to provide guidance for experts making weather predictions.

Every year, moist (潮湿的)air masses,known as monsoon,produce large amounts of rainfall in India, East Asia, Northern Australia and East Africa. All this wet air is pulled in by a high pressure area over the Indian Ocean and a low pressure area to the south.

According to Edward Cook , a weather expert at Columbia University in New York., the complex nature of the climate systems across Asia makes monsoons hard to predict. In addition, climate records for the area are too recent and not detailed enough to be of much use. Therefore, he and a team of researchers spent more than fifteen years traveling across Asia, looking for trees old enough to provide long-term records. They measured the rings, or circles, inside thousands of ancient trees in more than 300 places.

Rainfall has a direct link to the growth and width of rings on some kinds of trees. The researchers developed a document they are calling a Monsoon Asia Drought Atlas. It shows the effect of monsoons over seven centuries, beginning in the 1300s.

Professor Cook says the tree-ring records show periods of wet and dry weather. “If the monsoon basically fails or is a very weak one, the trees affected by monsoons at that location might put on a very narrow ring. But if the monsoon is very strong, the trees affected by that monsoon might put on a wide ring for that year. So, the wide and narrow ring widths of the chronology that we developed in Asia provide us with a measure of monsoon variability.” With all this information, researchers say they can begin to improve computer climate models for predicting the behavior of monsoons.

“There has been widespread famine and starvation and human dying in the past in large droughts. And on the other hand, if the monsoon is particularly heavy, it can cause extensive flooding.” said Eugene Wahl, a scientist with America’s National Oceanic and Atmospheric Administration. “So, to get a sense of what the regional moisture patterns have been, dryness and wetness over such a long period of time in great detail, I would call it a kind of victory for climate science.”

1.What’sthe passage mainly about?

A. The effects of Asian monsoons.

B. A breakthrough in monsoon prediction.

C. The achievements of Edward cook.

D. The necessity of weather forecast.

2. It is difficult for experts to predict Asian monsoons because_________

A. it is hard to keep long-term climate records.

B. they are formed under complex climate systems.

C. they influence many nations.

D. there is heavy rainfall in Asia.

3.What can be inferred from the passage?

A. Long and details climate records can offer useful information for monsoon research.

B. The Monsoon Asia Drought Atlas has a monsoon record for about 1,300 years.

C. The trees affected by monsoon grow fast if the monsoon is weak.

D. The rainfall might be low although the monsoon is strong in monsoon-affected areas.

4.What do we know about the research according to Eugene Wahl?

A. It will help people prevent droughts and floods.

B. It should include information about human life in the past.

C. It has analyzed moisture models world wide,

D. It is a great achievement in climate science.

5.Which of the following best describes the tone of this passage?

A. Humorous B. Pessimistic

C. Matter-of –fact D. Friendly.

Elizabeth Blackwell was born in England in 1821, and moved to New York City when she was ten years old. One day she decided that she wanted to become a doctor. That was nearly impossible for a woman in the middle of the nineteenth century. After writing many letters asking for admission(录取) to medical schools, she was finally accepted by a doctor in Philadelphia. She was so determined that she taught school and gave music lessons to get money for the cost of schooling.

In 1849, after graduation from a medical school. she decided to further her education in Paris. She wanted to be a surgeon(外科医师) , but a serious eye problem forced her to give up the idea.

Upon returning to the United States, she found it difficult to start her own practice because she was a woman. By 1857 Elizabeth and her sister, also a doctor, along with another woman doctor, managed to open a new hospital, the first for women and children Besides being the first woman physician and founding her own hospital , she also set up the first medical school for women.

1.Why couldn’t Elizabeth Blackwell realize her dream of becoming a surgeon?

A. She couldn’t get admitted to a medical school.

B. She decided to further her education in Paris.

C. A serious eye problem stopped her.

D. It was difficult for her to start a practice in the United States.

2.What main obstacle(障碍) almost destroyed Elizabeth’s chances for becoming a doctor?

A. She was a woman.

B. She wrote too many letters.

C. She couldn’t graduate from a medical school.

D. She couldn’t set up her hospital.

3.How many years passed between her graduation from a medical school and the opening of her hospital?

A. Eight years B. Ten years

C. Nineteen years D. Thirty-six years

4.According to the passage, all of the following are “firsts” in the life of Elizabeth Blacekwell, except that she ______.

A. became the first woman physician

B. was the first woman doctor

C. founded the first hospital for women and children

D. set up the first medical school for women

5.Eilzabeth Blackwell spent most of her life in _______.

A. England B. Paris

C. the United States D. New York City

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