90.In order to improve salmon life, the OPRD invests much every year. What’s the result of the efforts? 查看更多

 

题目列表(包括答案和解析)

下列每个句子中均有一处错误,请找出并改正。

1. We don’t know that we can do about it.

2.Could you tell me how I could get to the nearest post office?

3.The old man said he had joined the army in 1965.

4.Mary said she did not heard from her old classmate since September.

5. Charles asked he could use my car.

6.Mother asked me where I will go the next day.

7.Do you have a friend whom you could tell everything, like your deepest feelings and thoughts.

8.Don’t look at someone else paper, John. You should do it by yourself.

9. In order to improve your English, you can try writing an English diary every day.

10. The teacher gave a series of example in her lecture in order that everybody could understand.

 

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B
There is an English saying: “laughter is best medicine.” Until recently, few people took the saying seriously. Now however, doctors have begun to look into laughter and the effects it has on the human body. They have found that laughter really can improve people’s health.
Tests were carried out to study the effects of laughter on the body. People watched funny films while doctors checked their hearts, blood pressure, breathing and muscles. It was found that laughter had similar effects to physical exercise. It increases blood pressure, the heart beating and breathing; it also works several groups of muscles in the face, the stomach, and even the feet. If laughter exercises the body, it must be beneficial.
Other tests have shown that laughter appears to be able to reduce the effect of pain on the body. In one experiment doctors produced pain in groups of students who listened to different radio programmer. The group that tolerated the pain for the longest time was the groups which listened to a funny programmer. The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemicals in the brain which diminish both stress and pain.  
As a result of these discoveries, some doctors in the United States now hold laughter clinics, in which they help to improve their patients’ condition by encouraging them to laugh. They have found that even if their patients do not really feel like laughing, making them smile is enough to produce beneficial effects similar to those caused by laughter.
60.Doctors have proved the following EXCEPT that      .
A. smiling does good to health                  B. laughter can be tolerated
C. there is a way to reduce pain                      D. laughter can work the muscles in the feet
61. The main idea of the passage is       .
A. laughter and physical exercise have similar effects on the human body
B. smile can produce the same effects as laughter
C. pain can be reduced by laughter  
D. laughter is the best medicine
62.The underlined word “diminish” is similar to       .
A. test             B. stop                     C. reduce                  D. increase
63. Doctors hold laughter clinics _________.
A. to give better condition to their patients
B. in order to improve patients’ health
C. to make patients smile   
D. to prove smile and laughter have the same effect

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In order to improve my spoken English, I read ________ English _______.

A.every day; every day

B.every day; everyday

C.everyday; everyday

D.everyday; every day

 

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阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上将该项涂黑。
D
People in Shanghai can quench their thirst with high quality water if the Shanghai Water Authority (SWA) is able to make good on its word. It has vowed to make the city’s water match its status as a world class city.
“The current tap water quality meets national standards, but, compared with that of the European Union and the United States, it still needs to be improved.” said the SWA’s director general, Hang Jiayi.
In other developed countries, water fountains can be found almost everywhere—people do not bother with bottled drinking water.
By 2020, the water of the Huangpu River will be treated to reduce the amount of organic waste in it. Major water works that draw water from the Huangpu will need more treatment facilities to improve the colour, texture, ammonia(氨)and nitrogen content before 2010.
These treatment facilities are expected to cost 4 billion yuan, something that could affect the price of water, according to Chen Yin, SWA’s deputy director general.
Chen said that replacing water pipes was also a key project. The city’s aged pipes are mostly to blame for the bad water quality.
The SWA has started the water facilities renovation(更新)work, including the more than 14,000 kilometres of indoor piping, 107,000 tanks on top of the buildings, and more than 6,000 underground facilities.
World Water Day came on March 22, and this year’s theme is “Water for the future”. Beijing is also drawing up plans during China’s Water Week, which runs until March 28.
By 2010, the water for the Shanghai EXPO is to be above World Health Organization standards. And, the people of Beijing will be able to drink their tap water as well.
【小题1】People in Shanghai can drink their tap water_____.

A.by 2020B.in the first half of this yearC.by 2010D.by 2008
【小题2】What step need not be taken in order to improve the tap water?
A.The water of the Huangpu River will be treated. B.Aged water pipes will be treated.
C.Water facilities must be renovated.D.Water fountains must be found.
【小题3】Which is the correct statement according to the passage?
A.The tap water quality in Shanghai hasn’t met national standards.
B.World Water Day fell on March 22 this year.
C.The people of Beijing cannot drink their tap water now.
D.The treatment of the water of Huangpu River has been finished.
【小题4】What is the main idea of the passage?
A.The cost of treating the tap water.
B.How to reach the water standards of developed countries.
C.The project for making tap water drinkable in Shanghai and Beijing.
D.The progress of treating the water of Huangpu River.

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A breathtaking trick potentially left over from our ancestors might be found in us — the ability to sense oxygen through our skin.

Amphibians, animals such as frogs that can live both on land and in water, have long been known to be capable of breathing through their skin. In fact, the first known lungless frog that breathes only through its skin was discovered recently in the rivers of Borneo.

Now the same oxygen sensors found in frog skins and in the lungs of mammals (哺乳动物) have unexpectedly been discovered in the skin of mice.

“No one had ever looked,” explained Randall Johnson, a biologist researcher.

Mice and frogs are quite distant relatives, so the fact they have these molecules (分子) in common in their skin suggests they might well be found in the skin of other mammals, such as humans.

“We have no reason to think that they are not in the skin of people too,” Johnson said.   These molecules not only detect oxygen, but help increase levels of vital red blood cells, which carry oxygen around the body. Normal mice breathing in air that is 10 percent oxygen—a dangerously low level similar to conditions at the top of Mount Everest, and about half that of air at sea level. However, mice that had the oxygen sensor HIF-1a genetically removed from their skin failed to produce this hormone (荷尔蒙) even after hours of such low oxygen.

These findings, if they hold true in humans, suggest one could raise the level of oxygen circulating inside the body. This could help treat lung diseases and disorders such as anemia (贫血症) without injecting drugs, which make up a multibillion-dollar market, Johnson said.

Athletes also often try to get more oxygen delivered to their muscles in order to improve their performance. They often do this by training at high altitudes or in low-oxygen tents. The new study suggests they might want to expose their skin as well as breathing in low-oxygen air to improve their performance. “It’s hard to say what exactly might be done, however—there’s a lot we don’t know yet,” Johnson explained.

The scientists detailed their findings in the April 18 issue of the journal Cell.

49. Which of the following statements is TRUE according to the passage?

A. Johnson believes that Oxygen sensors also exist in human skin.

B. People have to surf the Internet to read detailed findings.

C. It has been proved that these findings help treat lung diseases.

D. It has long been expected oxygen sensors exist in mice’s skin. 

50. One of the functions of the molecules mentioned above is _______.

A. carrying oxygen around the body                   B. improving athletes’ performance

C. detecting oxygen                                          D. increasing level of oxygen

51. What is Johnson’s attitude to the application of the findings to the athletes’ training?

A. Negative                  B. Doubting                  C. Positive             D. Hesitating

52. The best title of the passage may be _______.

A. Great Findings Benefits Athletes A Lot

B. Frogs And Mice Are Distant Relatives

C. First Known Animal Breathes Through Skin

D. Humans Might Sense Oxygen Through Skin

 

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