题目内容

Chemical processes        in the treatment of materials for clothes         the environment badly in some countries nowadays．

     A．involve；damaging    B．involved；damaged

     C．involving；damage    D．involved；damage

D 


解析:

involve涉及，包含，be involved in sth 与……有关联。涉及到……、第一空考查动词的-ed形式，做后置定语，involve与processes这里是动宾关系，故用过去分词形式；第二空为本句的谓语动词，根据后面的时间状语，nowadays 可知选damage.

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Diet Coke, diet Pepsi, diet pills, no-fat diet, vegetable diet… We are surrounded by the word “diet” everywhere we look and listen. We have so easily been attracted by the promise and potential of diet products that we have stopped thinking about what diet products are doing to us. We are paying for products that harm us psychologically and physically.

Diet products weaken us psychologically. On one level, we are not allowing our brain to admit that our weight problems lie not in actually losing the weight, but in controlling the consumption of fatty, high-calorie（卡）, unhealthy foods. Diet products allow us to jump over the thinking stage and go straight for the counter instead. All we have to do is to swallow or recognize the word “diet” in food brands.

 On another level, diet products have greater psychological effects. Every time we have a zero-calorie drink, we are telling ourselves without our awareness that we don’t have to work to get results. Diet products make people believe that gain comes without pain, and that life can be without resistance and struggle.

 The danger of diet products lies not only in the psychological effects they have on us, but also in the physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead of healthy foods means we are preventing our bodies from having basic nutrients(营养成分). Diet foods and diet pills contain zero calorie only because the diet industry has created chemicals to produce these wonder products. Diet products may not be nutritional, and the chemical that go into diet products are potentially dangerous.

 Now that we are aware of the effects that diet products have on us, it is time to seriously think about buying them. Losing weight lies in the power of minds, not in the power of chemicals. Once we realize this, we will be much better able to resist diet products, and therefore prevent the psychological harm that comes from using them.

1.The first paragraph mainly tells us _____.

A. diet products can bring out people’s potential

B. people have difficulty in choosing diet products

C. diet products are misleading people

D. people are fed up with diet products

2.One psychological effect of diet products is that people tend to ____.

A. resist a variety of diet foods

B. hesitate before they enjoy diet foods

C. pay attention to their own eating habits

D. watch their weight rather than their diet

3.The purpose of writing this passage is _________.

A. to warn people of the side effect of diet products

B. to tell people how to lose weight

C. to advise people to eat diet products

D. to introduce some diet products

4. Which of the following shows the structure（结构） of the passage?

CP: Central Point      P: Point       Sp: Sub-point(次要点)   C: Conclusion

 

根据下列句子及所给汉语注释，写出空缺处各单词的正确形式。（每空只写一词）

1. My _________（本国的）language is Chinese．

2. He went through the forest under the __________（保护）of his dog．

3. There are seven ____________ （大洲） on the earth．

4.She is ____________（挑剔） about what she eats．

5.The patient was lying on the floor __________（失去知觉）．

6.Some fossil __________（燃料）result in increase in carbon dioxide．

7. I was feeling_________ （不舒服） hot．

8. He has gained ______ （实践的） experience of sailing as a sailor．

9. The ten most ____________（频繁地） asked questions are listed below．

10. Nowadays we still can see rivers p________ with chemical waste from factories．

 

单词拼写（共10小题；每小题0.5分，满分5分）

1.The book is i__________ for children aged 5-7.

2.We congratulated him on his being a__________ into Peking University.

3.As she had no child of her own, she had to a ____________one .

4.You can’t a__________ English poetry unless you understand its rhythm (韵律).

5.Animals have died as a c___________ of coming into contact with this chemical.

6.You’ll have to get p__________ from your parents if you want to come.

7.Hollywood also faces competition from ________(非法) copied movies.

8.Judy lay in the armchair, _________(专注) in her magazine.

9.The government’s ___________ (农业) policy is popular with farmers in the country.

10.After several _______(十年), the manager returned and found everything had changed.

 

请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。

注意：每空格1个单词。

For years, the automobile industry has been testing vehicles that use hydrogen as fuel. Now, people across the United States have had a chance to see and even drive cars that get power from hydrogen fuel cells (燃料电池).

But the hydrogen fuel cell is not a new idea. The fuel cell was first invented by Sir William Grove of Britain in 1839. Since then, many different designs, have been invented. There is one place where fuel cells are a proven technology: in space. The American space agency used fuel cells in its Apollo spaceships in the twentieth century.

The most useful fuel cell for transportation purposes is the Polymer Electrolyte Membrane, or P.E.M. fuel cell. It is simple and can operate at temperatures of sixty to eighty degrees Celsius. That is much lower than other fuel cell designs. A P.E.M. fuel cell has two sides divided by a thin membrane (膜). Hydrogen gas is forced through one side where it comes in contact with a reactive material containing the metal platinum(铂). The membrane separates the electrons(电子) from the protons(质子) in the hydrogen atoms. The protons pass through it to the other side of the fuel cell. But the electrons are captured to do work; like powering a motor. Oxygen from the air is forced into the other side of the fuel cell. There, the gas meets the protons that have passed through the membrane. They combine to form water and heat. A single fuel cell does not produce a lot of electricity. But when many fuel cells are combined, they can produce enough electricity to power a vehicle. The product of the chemical reaction that powers fuel cells is water. This makes fuel cells a very clean technology.

Hydrogen fuel cell cars have been slow to develop because of many technical problems that have to be solved. For example, it is unclear how long the membranes in P.E.M. fuel cells will last. Also, fuel cells need water for their chemical reactions. They must be designed to start easily at low temperatures and in dry climates. And smaller, less costly fuel cells must be designed before they can truly take the place of gasoline engines. Now more models of fuel cell vehicles are being tested than ever before. The threat of climate change and the high cost of oil have increased interest in these vehicles that do not cause pollution.

Title

 More Models of Hydrogen Cars Being Tested

The progress of hydrogen fuel cell

·1.________ by Sir William Grove in 1839.

·Designed 2.________ ever since.

·Used in Apollo spaceships in the twentieth century.

 Operating principle of P.E.M.

·It has two sides divided by a thin membrane.

·Hydrogen gas from one side 3.________ the active metal platinum.

·The electrons are 4.________ from the protons in the hydrogen atoms.

·The protons pass through the fuel cell to the other side.

·Oxygen from the air is5.________ into the other side of the fuel cell.

·The gas meets the protons，and then water and heat are6. ________

Reasons for slow 7.___________

of hydrogen fuel cell cars

·There are many technical problems8. ________

·The durability of the membranes in P.E.M. fuel cells is not clear.

·They have to start easily at 9.________ temperatures and in dry climates.

·They must be smaller and less costly before 10.________ gasoline engines.

 

 

 

1. In memory of the 90th anniversary of the founding of the communist party of China , our school held a c__________of singing a few days ago

2.If it is c _______ to you, please pay a visit to me when your are in town.

3.We must be a _____ of the skillful methods used in ads to try and sell us things.

4.In defeat, they found something more p ______ than victory---they found friendship, hounour and respect. .

5. Due to the terrible flood, most of the farmlands in our southern have been d_________ recently.

6.Although the power was cut off yesterday, the hospital still f________ (运作)normally.

7.At what age are children able to ____________(区分) between right and wrong ?

8.We should be fully aware of the ___________(重要性) of television in shaping our ideas.

9.After the chemical works exploded last week, much __________(有毒的 ) gas was given off.

10.A technique used f _____（频繁）by many players is to stare at the people they are playing against to make them feel uncomfortable.

 

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