The sentence wants ____ once more.

A. explaining       B. to explain     C. being explained     D. explained  

Is a recently discovered hormone the reason why folks who lose weight can’t keep it off?

Like millions of other fat people, at 530 inches high, more than 300 pounds, Carnie Wilson was not just fat. After trying all sort of diets that didn’t work, she has to go to the stomach – bypass surgery (胃部迂回手术), ie, have most of her stomach sewed up, only leaving tiny room to hold several tablespoonfuls at most. Result: she simply couldn’t eat the way she used to. In three years, Wilson is one third of her former weight.

Wilson’s experience is not all that unusual, and while doctors still aren’t exactly sure what is going on, a report in last week’s Journal of Medicine offers an explanation. The loss of appetite in bypass patients may be linked to a recently discovered hormone called ghrelin. Not only that, ghrelin may turn out to be one reason we feel hungry and it’s hare for didters to keep weight off.

Nowadays, researchers are careful to stress only what they know for sure. For the three conclusions, the leading Dr. David of the University of Washington says, “I feel very solid about two of them.” The first is that ghrelin levels in the bloodstream rise significantly before meals and drop afterward. The second conclusion is that ghrelin levels are higher on average in people who have lost weight from dieting.

Dr. David is less sure of the third conclusion, that bypass patients have only a quarter as much ghrelin as most people of normal weight. After all, ghrelin is produced by cells in the stomach. Years ago, leptin, a hormone was found as an appetite suppressant (食物抑制剂). But after years of trying, it had to be given up.

What doctors suspect is that both leptin and ghrelin are part of a complex system of brain and body chemicals that govern weight and appetite. That does not mena pharmaceutical (药物的) weight control is forever out of the question. “In the next ten years, we will be able to develop new drugs to help people lose weight healthily and effectively.”

47．What can we learn about ghrelin according to the passage?

         A．After meals ghrelin levels are higher in the bloodstream.

         B．People who have lost weight have less ghreilin in their body.

         C．Without ghrelin, people are really difficult to lose weight.

         D．Ghrelin is something produced by cells in the stomach.

48．What is Dr. David not sure?

         A．pharmaceutical weight control is impossible.

         B．There is less ghrelin in the bypass patients.

         C．new drugs will be developed in 10 years.

         D．ghrelin levels are higher in people on diet.

49．In fact, people’s weight and appetite are controlled by        

         A．ghrelin and leptin                B．hormone and medicine

         C．brain and body chemicals D．stomach and food

50．What can we infer from the passage?

         A．People with a lower ghrelin level go hungry easily.

         B．Doctors managed to use leption to control the appetite.

         C．Doctors are optimistic about how to lose weight healthily.

         D．The loss of appetite in bypass aptient is linked to leptin

  短文改错（共10小题；每小题1分，满分10分）

以下标有题号的每一行均有一个错误，请找出，并按下列情况改正：

此行多一个词；把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。

此行缺一个词：在缺词处加一个漏字符号（Λ），在该行右边横线上写出该加的词。

此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。

　  注意：请在答题卡上作答。

A philosophy(哲学) professor walks in to give his class the exam．

Place his chair on his desk, the professor says to the class,                                            76．_______

“Use everything you’ve learned in that course to prove this                                    77．_______

 chair does not exist．” So, pencils are writing but erasers are                                      78．_______

erasing．The students had a hard time proving that this chair                                        79．_______

doesn’t exist except one student, whom spends thirty seconds                                        80．_______

writing his answer, and then turns his paper, which surprises                                         81．_______

his classmate．Time goes by, and the day comes when all                                      82．_______

the students get their final grades．For everyone’s surprise, the                              83．_______

student who only wrote for thirty seconds gets a highly mark．                             84．_______

His answer to the question is “What a chair? ”                                                             85．_______

Despite the fact that Betty is a lovely girl, she ______ be extremely difficult to work with sometimes．

A．must                           B．should                         C．would                      D．can

30. They appeared ____ me, so I had to explain to them.

A. misunderstanding      B. misunderstood   

C. to be misunderstood    D. to have misunderstood

18.When we were young, every evening we ____ stay at home waiting for our mother.

A. would      B. might          C. should         D. could

五. 写作

第一节：单词拼写

根据所给单词的汉语提示或首字母提示补全单词（共10小题，每小题1分满分10分）

76. The train arrived_____(准时) as usual .                                                   76.         

77. The terrible accident left him____(永久地)disabled .                                77.         

78. I’m in a _______(进退两难境地) about this job offer .                                      78.         

79. She continued_______(通信) regularly with him after she went abroad .          79.         

80. His only_______(消遣) are drinking beer and watching football .                     80.         

81. Through n________, we were able to reach a compromise (妥协)                        81.         

82. Jim went to answer the phone.  M________Pate started to prepare lunch.        82.         

83. Please keep me i________of what happens during my absence.                     83.          

84. In the ancient tomb, they found p________tools made of stones and animal bones .  84.         

85. At noon tomorrow, the boy will be a_______his father in cleaning the car.        85.     

22. _____in the office that anyone working on the computer should not tell other people the password of the Internet access.

A. What is expected    B. As is expected   C. It is expected   D. What we expect

11．I’d rather you did some housework when you are free, but you ________

A．weren’t             B．didn’t           C．wouldn’t       D．don’t

34. I can’t thank you ______ much because without your help I ______ have won the first prize.

A. too; wouldn’t    B. very; shouldn’t  C. that; might not   D. so; couldn’t