D
Some people may be born happy, while others are genetically negative, scientists have suggested in a study published late February in a British journal.
Earlier research had already established that the gene known as 5-HTTLPR plays a key role in determining how the neurotransmitter (神經(jīng)傳遞素) serotonin works within the brain. Serotonin, a hormone (荷爾蒙), passes chemical messages between nerve cells. It has been closely linked to mood. Several anti-depressant (抗抑郁) drugs regulate serotonin levels.
Scientists had also identified three variants (變體) of the gene. Two so-called “short” variants were linked to a higher risk of depression and suicide (自殺) attempts. Unlike the two “short” variants, the “l(fā)ong” variant of 5-HTTLPR showed a clear dislike of negative images, such as fierce animals, and a clear liking for positive ones, such as flowers.
Researchers from the University of Essex in Britain showed participants a series of images, which were divided into three kinds: negative ones aimed at inspiring fear or stress such as a snake or person about to commit suicide, pleasant ones and neutral (中性的) ones.
The participants who had the long variant of the 5-HTTLPR gene “showed a clear dislike of negative material alongside a careful attention for positive material,” the researchers found. They paid close attention to the pretty pictures, and ignored the frightening ones. On the other hand, the short variant groups had the opposite reaction.
In January, the Australian government organized “happiness workshops”, teaching government staff how to be happy. The department that held the “happiness workshops” said unhappy staff weren’t productive staff.
Australian political opposition parties have argued that the “happiness workshops” are probably a waste of money and couldn’t increase productivity as intended. However, whether the workshop will have a happy or disappointing result, we will have to wait and see.
71. Various kinds of images were shown to the participants to        .
A. draw their attention
B. cater to their different tastes
C. find out about their reactions
D. teach them to improve their artistic appreciation
72. The “short” variants of 5-HTTLPR differ from the “l(fā)ong” variants of 5-HTTLPR in that_____.
A. the former is connected with positive mood while the latter negative
B. the former is connected with negative mood while the latter positive
C. the former has a greater effect on one’s mood than the latter
D. the latter has a greater effect on one’s mood than the former
73. Which of the following statements is true about “happiness workshops”?
A. Most people believe that they are a waste of money.
B. They will be beneficial in the long run.
C. The purpose of “happiness workshops” is to teach all Australians to be happy.
D. They are organized in the belief that happy staff can work more efficiently.
74. It can be learned from the article that        .
A. drugs can be used to control people’s serotonin levels
B. happiness is more important than sadness
C. nothing can affect our mood
D. people with the short variant of 5-HTTLPR prefer a flower to a snake
75. The article is mainly about        .
A. the reason for the foundation of “happiness workshops”
B. the link between people’s mood and their gene
C. the study on people’s likes and dislikes
D. the differences in people’s attitude towards life

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Annealing

Annealing is a way of making metal softer by heating it and then letting it cool very slowly, if metal is heated and then cooled very quickly, for example by dipping(浸) it in water, it will be very hard but also very brittle(脆)—that is, it will break easily. Metal that has been annealed is soft but does not breaks as easily. It is possible to make metal as hard or as soft as is wished, by annealing it. The metal is heated, and allowed to cool slowly for a certain length of time. The longer the heated metal takes to cool slowly, the softer it becomes. Annealing can also be used on other material, such as glass.

1. Annealing can make metal ____

　　A. hard and tough(韌)　B. hard but brittle　　C. soft but tough　　D. soft and brittle

2. Why do people put hot metal in water?

　　A. To make it hard.　　B. To make it soft.　C. To make it cool.　D. To make it brittle

3. In annealing, the required hardness of a metal depends on 　______

　　A. the quantity of water used　B. the temperature of the metal

　　C. the softness of the metal　  D. the timing of the operation

4. As suggested by the text, how can glass be made less brittle?

　　A. It can be heated and then cooled quickly.

　　B. It can be cooled and then heated slowly.

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科目：高中英語 來源： 題型：閱讀理解

完形填空（共20小題；每小題1.5分，滿分30分）

閱讀下面短文，從短文后各題所給的四個選項（A、B、C和D）中，選出可以填入空白處的最佳選項，并在答題卡上將該項涂黑。

Driving to a store after a busy day at work, I saw a man standing near the store holding a sign that said, “will work for food.” I knew at that moment that I was going into the store and   36  him something to eat.

As I   37  the car park, I saw in my car mirror a lady come out from a hairdresser’s and  38   the man. I thought she must be going to give him some  39  or something to help him out. In the store I was   40  to get the things I needed and also the chicken dinner and a soda that I wanted to give the man outside. I hurried out to my car and   41  that I was going to be able to hopefully help this man.

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A. turned into        B. got over         C. called at            D. pointed out

A. interview       B. comfort          C. blame                D. approach

A. example        B. space                C. money                D. comfort

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A. different      B. strange          C. famous           D. comfortable.

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科目：高中英語 來源：安徽省合肥潤安公學(xué)2009-2010學(xué)年度高一第二學(xué)期期中考試 題型：閱讀理解


D
Some people think that as more and more people have televisions in their homes, fewer and fewer people will buy books and newspapers. Why read an article in the newspaper, when the TV news can bring you the information in a few minutes and with pictures? Why read the life story of a famous man, when a short television program can tell you all that you want to know?
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C. reading is a cheap way of learning and having fun.
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A. People only need reading, though.               B. Reading is still necessary today.
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A. Fewer and fewer people will buy books.          
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C. Books with hard covers sell better than paperbacks.
D. More people like TV programs about famous men.

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科目：高中英語 來源：江蘇省鎮(zhèn)江市2009-2010學(xué)年度高一第二學(xué)期期中考試英語 題型：閱讀理解


D
Some years ago factories had more freedom than they have now, and they did not need to be as careful as they must be today. They did not need to worry a lot about the safety of the new products (產(chǎn)品) that they developed. They did not have to pay much attention to the health and safety of the people who worked for them. Often new products were dangerous for the people who used them; often conditions in the work place had very bad effects on the health of the workers.
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