Many farmers in the countryside have gone to cities to look for work and left their children behind by their grandparents． [ ] A． to be raised B． raised C． being raised D． raising 题目和参考答案——青夏教育精英家教网—

题目内容

Many farmers in the countryside have gone to cities to look for work and left their children behind ________ by their grandparents．

[　　]

A．

to be raised

B．

raised

C．

being raised

D．

raising

答案：A

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________ by the advances in technology, many farmers have set up wind farms on their land.

A. Being encouraged B. Encouraging

C. Encouraged D. Having encouraged

Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly, The symptoms ( 症状) of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.

Certain microorganisms (微生物) cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release (释放) poisons that make people sick.

Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepared. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have a bad reaction to those chemicals when they eat the crops.

Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms.

When people handle food properly, the risk of food poisoning is very small. Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with ditty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat wild mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous.

Most people recover from food poisoning after a few days of resting and drinking extra water.

If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.

Which of the following statements is NOT true?

A. Food poisoning means death

B. When poisoned, food can make people sick

C. Food poisoning comes in varieties

Ｄ. Food poisoning can be serious

We know from the passage that the symptoms of food poisoning ______.

A. only contain fever B. are too common to be noticed

C. can be noticed within hours D. can be ignored

Food poisoning can be caused by all the following EXCEPT __________.

A. some chemicals B. low temperatures

C. some tiny living things D. certain natural materials

From Paragraph 5, we can learn that ____________.

A. mushrooms should not be eaten

B. vegetables are safer than meat and seafood

C. natural poisons are more dangerous than chemicals

D. different types of food should be handled differently

It can be inferred from the passage that _____________.

A. natural materials are safe in food processing

B. chemicals are needed in food processing

C. food poisoning can be kept under control

D. food poisoning is out of control

Reading Comprehension
Section B
Directions：Read the following passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read.
　　Are organically grown foods the best food choices？The advantages claimed for such foods over conventionally (传统地) grown and marketed food products are now being debated. Supporters of organic foods—a term whose meaning varies greatly—frequently announce that such products are safer and more nutritious than others.
　　The growing interest of consumers in the safety and nutritional quality of the typical North American diet is a welcome development. However, much of this interest has been sparked by sweeping claims that the food supply is unsafe or inadequate in meeting nutritional needs. Although most of these claims are not supported by scientific evidence, the flood of written material advancing such claims makes it difficult for the general public to separate fact from fiction. As a result, claims that eating a diet consisting entirely of organically grown foods prevents or cures disease or provides other benefits to health have become widely publicized.
　　Almost daily the public is besieged by claims for “no-aging” diets, new vitamins and other wonder foods. There are numerous unproved reports that natural vitamins are superior to synthetic ones, that fertilized eggs are nutritionally superior to unfertilized eggs, that untreated grains are better than fumigated grains and the like.
　　One thing that most organically grown food products seem to have in common is that they cost more than conventionally grown foods. But in many cases consumers are misled if they believe organic foods can maintain health and provide better nutritional quality than conventionally grown foods. So there is real cause for concern if consumers，particularly those with limited incomes, distrust the regular food supply and buy only expensive organic foods instead.
1.The “welcome development” mentioned in paragraph 2 is an increase in ______.
　　A. attention to food safety and nutrition among north Americans
　　B. the nutritional quality of the typical North American diet
　　C. the amount of healthy food grown in North America
　　D. the number of consumers in North America
2. The author implies that there is cause for concern if consumers buy organic foods instead of conventionally grown foods because ______.
　　A. organic foods can be more expensive but are often not better than conventionally grown foods
　　B. many organic foods are actually less nutritious than similar conventionally grown foods
　　C. conventionally grown foods are more readily available than organic foods
　　D. too many farmers will stop using conventional methods to grow food crops
3.What is the author’s attitude toward the claims made by advocates of health foods？
　　A. Enthusiastic. B. Favorable. C. Neutral. D. Distrustful.

_____ by the advances in technology, many farmers have set up wind farms on their land.

A. Being encouraged B. Encouraging

C. Encouraged D. Having encouraged

________ by the advances in technology, many farmers have set up wind farms on their land.

A. Being encouraged B. Encouraging C. Encouraged D. Having encouraged

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