---Do you like the new pen?

  ---Yes, it_____ smoothly.  

A. is written   B. is writing   C. writes   D. wrote

Just as the world’s most respected scientific bodies have confirmed that the world is getting hotter, they have also stated that there is strong evidence that humans are driving the warming. Countless recent reports from the world’s leading scientific bodies have said the same thing. For example, a 2010 summary of climate science by the Royal Society stated that: “There is strong evidence that the warming of the Earth over the last half-century has been caused largely by human activity.”

The idea that humans could change the planet’s climate may be counter-intuitive(與直覺不符的), but the basic science is well understood. Each year, human activity causes billions of tons of greenhouse gases to be released（釋放）into the atmosphere. As scientists have known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.

Of course, the planet’s climate has always been changing thanks to “natural” factors(因素) such as changes in solar or volcanic（火山的）activity, or cycles relating the Earth’s going around the sun. According to the scientific literature, however, the warming recorded to date matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere – not the warming we would expect from other possible causes.

Even if scientists did discover another reasonable explanation for the warming observed so far, that would beg a difficult question. As Robert Henson puts it in The Rough Guide to Climate Change: “If some newly discovered factor can account for the climate change, then why aren’t carbon dioxide（二氧化碳）and the other greenhouse gases producing the warming that basic physics tells us they should be?”

The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths – one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.

In most scientists’ opinion, the global warming is mainly caused by ________.

   A. solar activity                       

B. volcanic activity   

C. the Earth’s going around the sun       

D. human activity

The text is developed by ________.

   A. giving typical examples

   B. following the order of space

   C. analyzing a theory and arguing it

   D. comparing and finding differences

The underline word “identical” means ________.

   A. totally different                    

B. exactly the same

   C. extremely important                  

D. relatively independent

Which of the following can be the best title?

   A. Are All the Scientists Really Scientific?

   B. Where Is Global Warming Leading Us to?

   C. Are Humans Definitely Causing Global Warming?

   D. What’s Relation of Global Warming and Greenhouse Gases?

In Sydney, there’s only ________ average of 23 days a year when ________ sun doesn’t shine.

A. the, the         B. an, /                C. an, the              D. the, /

It was ______ creative thinking that I took the course, not to get high marks in exams.

A. developing   B. to develop     C. developed        D. to have developed

Although this ________ sound like a simple task, great care is needed.

A. must B. shall    C. may  D. should

A sudden change in temperature _______ to bring rain or snow.

A. gets              B. turns                C. hopes         D. tends

In the United States, 30 percent of the people have a “weight problem”。To many people the cause is obvious (明顯的): they eat too much. But scientific evidence (證據(jù)) does little to support this idea. Going back to America of 1910, we find that people were thinner than today, yet they ate more food. In those days people worked harder physically, walked more, used machines much less, and didn’t watch television.

Several modern studies, moreover, have shown that fatter people don’t eat more on average than thinner people. A 1979 study of 3,545 London office workers showed that fat people eat less than slim (苗條的) people.

Studies also show that slim people are more active than fat people. A study by a research group at Stanford University found the following interesting facts:

The more the man ran, the greater loss of the body fat

The more they ran, the greater increase in food intake.

Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.

Nowadays many Americans have the problem that ______.

A. they are too slim         B. they work too hard C. they are too fat   D. they lose too much body fat

According to the passage, how many people in 900 Americans have a “weight problem”?

A. 150.               B. 300.            C. 600.                  D. 270.

Is there any scientific evidence to support the idea that eating too much is the cause of a “weight problem”?

A. Yes, there is plenty of evidence.        B. Of course, there is some evidence to support this.

C. There is hardly any scientific evidence to support this.     D. We are not sure.

The Americans in 1910 ________.   A. ate more food and had more physical activities   

B. ate less food but had more physical activities

C. ate less food and had less physical activities     D. had more problems

短文改錯(cuò) (共10小題; 每小題1.5分, 滿分15分)
    此題要求改正所給短文中的錯(cuò)誤. 對(duì)標(biāo)有題號(hào)的每一行作出判斷:如無錯(cuò)誤,在該行右邊橫線上畫一個(gè)勾(√); 如有錯(cuò)誤(每行只有一個(gè)錯(cuò)誤),則按下列情況改正:

此行多一個(gè)詞: 把多余的詞用斜線(\)劃掉, 在該行右邊橫線上寫出該詞, 并也用斜線劃掉.

    此行缺一個(gè)詞: 在缺詞處加一個(gè)漏字符號(hào)(^), 在該行右邊橫線上寫該加的詞.

    此行錯(cuò)一個(gè)詞: 在錯(cuò)的詞下劃一橫線, 在該行右邊橫線上寫出改正后的詞.

    注意: 原行沒有錯(cuò)的不要改.

Behind my apartment, there is used to be a dirty and                 

  ______________

messy corner. Bits of plastic bags hanged on the trees.             

______________

Broken bottles were left laying here and there. There was           

______________

a damaging car in the center. The whole corner gave off an          

______________

unpleasant smell. One year ago, we decided to turn it in a             

______________

beautiful park. since then, great changes have been taken place         

______________

in that corner. All the rubbish have been cleared away. Flowers        

______________

and young trees have planted all over. Now birds come             

______________

here to sing, children come here to play, and adults come here          

______________

to enjoy our peaceful life. It has taken on a new look.               

______________

His suggestion ____ the meeting be delayed was turned down.

   A. which    B. that      C. /        D. it

It is exactly the way ________ we speak ________ makes our teacher angry.

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