Compared with his sister, Jerry is even more        to, and more easily troubled by , emotional and relationship problems.

A. sceptical           B. addicted          C. available        D. sensitive

Schools across China are expected to hire 50,000 college graduates this year as short-term teachers, almost three times the number hired last year,       reduce unemployment pressures.

A. help              B. to have helped     C. to help    D. having helped

--- Hi, Terry, can I use your computer for a while this afternoon?

--- Sorry.        .

A. It' s repaired                        B. It has been repaired

C. It's being repaired                    D. It had been repaired

---- I' m surprised to hear that Sue and Paul have __   .

----So am I. They seemed very happy together when I last saw them.

A. broken up          B. finished up       C. divided up        D closed up

Because of the financial crisis, days are gone _   _ local 5-star hotels charged 6,000 yuan for one night.

A. if                  B. when             C. which             D. since

-- Ann is in hospital.

-- Oh, really? I __   know. I __   go and visit her.

A. didn’t; am going to                        B. don’t; would

C. don’t; will                                     D. didn't; will

The population of Jiangsu           to more than twice what it was in 1949. The figure is now approaching 74 million.

A. has grown        B. have grown       C. grew       D. are growing

某英语报社拟成立“微笑俱乐部”，现向癸未征募会员。要求申请者提交一篇题为“I want to Smile”的英语短文。请你以申请者的身份，根据以下思路图的提示用英语写一篇短文。  

注意：  

1.                     根据思路图适当展开，以使行文连贯；  

2.                     词数：120左右  

I Want to Smile  

                                                                             解析：审题

1.  文体：说明文。

2.  主体时态：一般现在时。

3.  主体人称：第一人称。

4.  内容要点：①微笑的优点；②想对其微笑的人物（父母）；③对父母微笑的理由；④对自己微笑的理由；⑤总结。

We already know the fastest, least expensive way to slow climate change: Use less energy. With a little effort, and not much money, most of us could reduce our energy diets by 25 percent or more―doing the Earth a favor while also helping our wallets.   

Not long age. My wife, PJ, and I tried a new diet―not to lose a little weight but to answer an annoying question about climate change. Scientists have reported recently that the world is bending up even faster than predicted only a few years ago, and that the consequences could be severe if we don’t keep reducing emissions（排放）of carbon dioxide（CO₂）and other greenhouse gases that are trapping heat in our atmosphere.   

We decided to try an experiment. For one month we recorded our personal emissions of CO₂^. . We wanted to see how much we could cut back, so we went on a strict diet. The average US household（家庭）produces about 150 pounds of CO₂ a day by doing common-place things like turning on air-conditioning or driving cars. That’s more than twice the European average and almost five times the global average, mostly because Americans drive more and have bigger houses. But how much should we try to reduce?  

For an answer, I checked with Tim Flannery, author of The Weather Makers: How Man Is Changing the Climate and What It Means for Life on Earth. In his book, he had challenged readers to make deep cuts in personal emissions to keep the world from reaching extremely important tipping points, such as the melting（融化）of the ice sheets in Greenland or West Antarctica. “To stay below that point, we need to reduce CO₂ emissions by 80 percent,” he said.   

Good advice, I thought. I’d opened our bedroom windows to let in the wind. We’d gotten so used to keeping our air-conditioning going around the clock. I’d almost forgotten the windows even opened. We should not let this happen again. It’s time for us to change our habits if necessary.  

72. Why did the author and his wife try a new diet?  

A. To take special kinds of food          B. To respond to climate change.   

C. To lose weight                      D. To improve their health  

73. The underlined words “tipping points” most probably refer to  

A. freezing points       B. burning points       C. melting points     D. boiling points

74. It can be inferred from the passage that  

A. it is necessary to keep the air-conditioning on all the time  

B. it seems possible for every household to cut emissions of CO₂  

C. the average US household produces about 3,000 pounds of CO₂ a month  

D. the average European household produces about 1,000 pounds of CO₂ a month