It's impossible for all the people to get jobs because of them are not fit for them. A. none B. all C. not all D. every one 题目和参考答案——青夏教育精英家教网—

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It's impossible for all the people to get jobs because of them are not fit for them.

A. none B. all C. not all D. every one

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第三部分阅读理解(共20小题；每小题2分，满分40分)

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。

Tears are nature’s way of making us feel more comfortable. When our eyes are made uncomfortable by some small pieces of pollution, or when we are cutting onions, or when we are exhausted and “red-eyes” from over work and late hours, tears form in our eyes to clean and refresh them.

Tears are also a sign of strong emotion. We cry when we are sad and we cry when we are happy.

And tears seem to be uniquely human. We know that animals also experience emotion--fear, pleasure, loneliness, but they do not shed (流) tears.

Biologically speaking, tears are actually drops of saline fluid, which is a little bit salty, produced by a gland (腺) in the body. Because salt is an important component, tears may actually constitute the most conclusive evidence that the human animal is the end product of a long evolutionary process that began in the sea.

And it is clear that, in addition to the emotional benefits, the shedding of tears has a specific biological function as well. Through tears, we can eliminate from our body certain chemicals which build up in response to stress and create a chemical imbalance in the body. Crying actually makes us feel better by correcting that imbalance and making us feel good again. And thus the emotional and the biological functions of tears merge (合并) into one and make us even more “human” than we would otherwise be.

1. According to the passage, human beings may have originated in

A. the sea B. the salt C. chemicals D. animals

2. Which of the following is NOT a function of tears?

A. Biological. B. Emotional. C. Political. D. Chemical.

3 According to the article, which of the following is unique to humans?

A. The feeling of loneliness. B. The state of feeling good.

C. The ability to shed tears. D. The feeling of fear.

4. The underlined word "eliminate" probably means

A. add B. produce C. replace D. remove

Although we already know a great deal about flu, and although the World Health Organization is constantly collecting detailed information from its chain of flu reference laboratories throughout the world, it is extremely difficult for epidemiologists, who study infectious diseases, to predict when and where the next flu epidemic will occur, and how serious it will be.

There are three kinds of flu virus, known as A, B and C. flu C virus is relatively stable and causes mild infections that do not spread far through the population. The A and B types are unstable, and are responsible for the epidemics that cause frequent concern. Following any virus attack, the human body builds up antibodies（抗体）which can be changed into immunity to that type of virus but a virus with the ability to change its character is able to bypass this protection. Variability（可变性）is less developed in the flu B virus, which affects only human beings. As flu B virus may cause a widespread epidemic but will have little effect if introduced into the same community soon afterwards, since nearly everyone will have built up antibodies and will be immune. The flu A virus, which affects animals also, is extremely unstable and is responsible for some of the worst outbreaks of the disease, such as the world epidemic, of 1918&1919, when about half the world’s population were infected and about twenty million people died, some from pneumonia caused by the virus itself and some from secondary complication caused by bacteria. Accurate prediction is difficult because of the complication of the factors. A particular virus may be related to one to which some of the population have partial involved immunity. The extent to which it will spread will depend on factors such as its own strength, or virulence（病毒性）, the ease with which it can be transmitted and the strength of the opposition it encounters（遇到）. Scientists, however, have a reliable general picture of the world situation.

1．hich of the following is the most appropriate title for the passage?

A．Symptoms of Flu B．Man Vs Flu Virus

C．WHO: The Major Organization against Flu Virus D．Variability of Flu Virus

2．hat does the author say about the flu B virus?

A．B Virus is relatively stable and causes mild infections that do not spread far through the population.

B．B Virus is unstable, and is responsible for the epidemics that cause frequent concern.

C．B virus is extremely unstable and is responsible for some of the worst outbreaks of the disease.

D．B virus has a very developed variability, and it affects only human beings.

3Which of the following is NOT mentioned as a factor contributing to the extent to which a virus spreads?

A．The strength of the virus.

B．The ease with which the virus can be transmitted.

C．The strength of the opposition.

D．The immunity the virus can bring about.

4．his article is quite probably ________.

A．a piece of news B．a special science report

C．an introduction to a disease D．a scientific fiction

.According to some experts, the GM rice certificates, ___are based on fair safety evaluation, won’t mean it would immediately be commercially planted.

A. what B. that C. which D. when

The reference she made to her friend, the poet, was interesting but too _____ for anyone to appreciate.

A. drastic B. dull C. obscure D. distinct

Juliet Roberts, ______ predicted, won the award for the Oscar Best Female Actress.

A. if B. once C. as D. when

---Look! Here comes the bus and I have to go now.

Thank you for coming to see me off.

--- Goodbye, _______.

A. congratulations B. cheer up C. all the best D. go ahead

.The current political _____ of our country is favorable for foreign investments.

A. climate B. weather C. state D. occasion

Your ability has never been in doubt-- the question is ____ you are prepared to work hard.

A. that B. whether C. if D. how

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