题目内容

There is no greater pleasure than lying on my back in the middle of the grassland, _____at the night sky.

A.to stare B. staring C. stared D, having stared

 

B

【解析】本题考察的是非谓语动词做状语的用法。前面句中的隐含主语是I,主语I和后面的动词stare之间构成主动关系,所以使用现在分词做状语,表示该动词与前面句中的动词同时发生。句义:没有什么快乐可能和躺着草地上看着夜晚的天空更让人快乐!A项不定式表示的将来的动作故B正确。

 

练习册系列答案
相关题目

The Pacific island nation of Nauru used to be a beautiful place. Now it is an ecological disaster area. Nauru's heartbreaking story could have one good consequence—other countries might learn from its mistakes.

For thousands of years, Polynesian people lived on the remote island of Nauru, far from western civilization. The first European to arrive was John Fearn in 1798. He was the British captain of the Hunter, a whaling ship. He called the island Pleasant Island.

However, because it was very remote, Nauru had little communication with Europeans at first. Then whaling ships and other traders began to visit, bringing guns and alcohol. These elements destroyed the social balance of the twelve family groups on the island. A ten?year civil war started, which reduced the population from 1,400 to 900.

Nauru's real troubles began in 1899 when a British mining company discovered phosphate(磷酸盐) on the island. In fact, it found that the island of Nauru was nearly all phosphate, which is a very important fertilizer for farming. The company began mining the phosphate.

A phosphate mine is not a hole in the ground; it is a strip?mine. When a company strip?mines, it removes the top layer of soil. Then it takes away the material it wants. Strip?mining totally destroys the land. Gradually, the lovely island of Nauru started to look like the moon.

In 1968, Nauru became one of the richest countries in the world. Every year the government received millions and millions of dollars for its phosphate.

Unfortunately, the leaders invested the money unwisely and lost millions of dollars. In addition, they used millions more dollars for personal expenses. Soon people realized that they had a terrible problem—their phosphate was running out. Ninety percent of their island was destroyed and they had nothing. By 2000, Nauru was almost financially ruined. Experts say that it would take approximately $433,600,000 and more than 20 years to repair the island. This will probably never happen.

1.What might be the author's purpose in writing the text?

A. To seek help for Nauru's problems.

B. To give a warning to other countries.

C. To show the importance of money.

D. To tell a heartbreaking story of a war.

2.What was Nauru like before the Europeans came?

A. Rich and powerful.

B. Modern and open.

C. Peaceful and attractive.

D. Greedy and aggressive.

3.The ecological disaster in Nauru resulted from ________.

A. soil pollution

B. phosphate overmining

C. farming activity

D. whale hunting

4.Which of the following was a cause of Nauru's financial problem?

A. Its leaders misused the money.

B. It spent too much repairing the island.

C. Its phosphate mining cost much money.

D. It lost millions of dollars in the civil war.

5.What can we learn about Nauru from the last paragraph?

A. The ecological damage is difficult to repair.

B. The leaders will take the experts' words seriously.

C. The island was abandoned by the Nauruans.

D. The phosphate mines were destroyed.

 

Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers.

Their study found that theobromine, found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present.

The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. “While coughing is not necessarily harmful(有害的) it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem,” said Professor Peter Barnes.

Ten healthy volunteers(志愿者) were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicine are stopping coughs.

The team found that, when the volunteers were given theobromine, the capsaicin need to produce a cough was around a third higher than in the placebo group. When they were given codeine they need only slightly higher levers of capsaicin to cause a cough compared with the placebo.

The researchers said that theobromine worked by keeping down a verve activity(神经活动), which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness.

1.According to Professor Barnes, theobromine ______.

A. cannot be as effective as codeine

B. can be harmful to people’s health

C. cannot be separated from chocolate

D. can be a more effective cure for coughs

2.What was used in the experiment to cause coughing?

A. Theobromine. B. Codeine. C. Capsaicin. D. Placebo.

3.We learn from the text that volunteers in the experiment _____.

A. were patients with bad coughs

B. were divided into the three groups

C. received standard treatments

D. suffered little side effects

4.Which of the following would be the best title for the text?

A. Codeine: A New Medicine B. Chocolate May Cure Coughs

C. Cough Treatment: A Hard Case D. Theobromine Can Cause Coughs

 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网