How far would you be willing to go to satisfy your need to know? Far enough to find out your possibility of dying from a terrible disease? These days that’s more than an academic question, as Tracy Smith reports in our Cover Story.

There are now more than a thousand genetic（基因的）tests, for everything from baldness to breast cancer, and the list is growing. Question is, do you really want to know what might eventually kill you? For instance, Nobel Prize-winning scientist James Watson, one of the first people to map their entire genetic makeup, is said to have asked not to be told if he were at a higher risk for Alzheimer’（老年痴呆症）.

“If I tell you that you have an increased risk of getting a terrible disease, that could weigh on your mind and make you anxious, through which you see the rest of your life as you wait for that disease to hit you. It could really mess you up.” Said Dr. Robert Green, a Harvard geneticist.

“Every ache and pain,” Smith suggested, could be understood as “the beginning of the end.”“That ’s right. If you ever worried you were at risk for Alzheimer’s disease, then every time you can’t find your car in the parking lot, you think the disease has started.”

Dr. Green has been thinking about this issue for years. He led a study of people who wanted to know if they were at a higher genetic risk for Alzheimer’s. It was thought that people who got bad news would, for lack of a better medical term, freak out. But Green and his team found that there was“no significant difference”between how people handled good news and possibly the worst news of their lives. In fact, most people think they can handle it. People who ask for the information usually can handle the information, good or bad, said Green.

71.The first paragraph is meant to__________.

A. ask some questions                        B. introduce the topic

C. satisfy readers’ curiosity                 D. describe an academic fact

【答案】B

【解析】通过两个问题引出话题。

72.Which of the following is true of James Watson？

A. He is strongly in favor of the present genetic tests.

B. He is more likely to suffer from Alzheimer’s disease.

C. He believes genetic mapping can help cure any disease.

D. He doesn’t want to know his chance of getting a disease.

【答案】D

【解析】根据第二段Nobel Prize-winning scientist James Watson, one of the first people to map their entire genetic makeup, is said to have asked not to be told if he were at a higher risk for Alzheimer’。“James Watson要求如果他的基因表明他有很高的老年痴呆症的可能不要告诉他。”

73.According to Paragraphs 3 and 4, if a person is at a higher genetic risk, it is__________.

A. advisable not to let him know          B. impossible to hide his disease

C. better to inform him immediately      D. necessary to remove his anxiety

【答案】A

【解析】根据这两个自然段可知，如果你提前被告知你将来可能患某种可怕的疾病会mess you up。

74.The underlined part“freak out”in Paragraph 5 is closest in meaning to“_________”.

A. break down                     B. drop out            C. leave off            D. turn away

【答案】A

【解析】根据下文But的转折，以及no significant difference可知，freak out的意思是A（精神垮掉）。

75.The study led by Dr. Green indicates that people__________.

A. prefer to hear good news         B. tend to find out the truth

C. can accept some bad news              D. have the right to be informed

【答案】C

【解析】根据第五段内容 In fact, most people think they can handle it可知答案选C.

第二节：完形填空（共20小题，每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
Man-made Causes
Man-made causes probably do the most damage. There are many man-made causes.  21  is one of the biggest man-made problems. Pollution  22  in many shapes and sizes. Burning fossil fuels is one thing that causes pollution. Fossil(化石) fuels(燃料)are fuels made of organic matter such as coal, or oil. when fossil fuels are burned they  23  a green house gas called CO2. Also mining coal and oil allows methane to escape. How does it escape? Methane(甲烷)is  24  in the ground.  25  coal or oil is mined you have to dig up the earth a little. When you dig up the fossil fuels you dig up the methane as well.
Another major man-made  26  of Global Warming is population. More people  27  more food, and more methods of transportation, right? That means more methane because  28  will be more burning of fossil fuels, ­ 29  more agriculture. Now you’re probably thinking, “Wait a minute, you said agriculture is going to be damaged by Global Warming, but  30  you’re saying agriculture is going to help cause Global Warming?” Well, have you  31 been in a barn filled with animals and you smell something  32 ? You re  33  methane. Another source of methane is manure. Because more food is needed we have to raise food. Animals like cows are a source of food which means more manure and methane. Another problem  34  the increasing population is  35 . More people means more cars, and more cares means more pollution. Also, many people have more than one car.
Since CO2 contributes to global warming, the increase in population makes the problem worse because we breathe out CO2.  36 , the trees that change our CO2 to oxygen are being demolished because we’re using the land that we cut the trees down from as property  37 our homes and buildings. We are not replacing the trees(an important part of our ecosystem), so we are  38  taking  39  of our natural resources and giving nothing back in  40 .
21．A．Pollution            B．Damage               C．Fossil           D．Transportation
22．A．goes                   B．comes                 C．takes            D．moves
23．A．give off                    B．look out               C．burn away     D．take in
24．A．originally           B．mostly                 C．naturally       D．usually
25．A．Because             B．When                  C．While           D．But
26．A．reason                B．excuse                 C．cause            D．problem
27．A．eats                    B．takes                   C．produces       D．means
28．A．it                        B．there                   C．that               D．they
29．A．and                           B．or                        C．though         D．but
30．A．then                   B．there                   C．before          D．now
31．A．ever                   B．yet                      C．still               D．even
32．A．Pleasant             B．terrible                C．sweet           D．nice
33．A．feeling               B．using                   C．looking        D．smelling
34．A．of                       B．as                        C．with                    D．for
35．A．pollution            B．population          C．warming             D．transportation
36．A．Also                   B．However             C．Therefore      D．Thus
37．A．as                       B．for                       C．like               D．to
38．A．quickly               B．constantly           C．surely           D．usually
39．A．use                      B．part                      C．hold                    D．advantage
40．A．return                 B．turn                      C．general         D．total

If you put on more coal，the fire will ________.

A．burn down                            B．burn up

C．burn out                              D．burn to the ground

第二节：完形填空（共20小题，每小题1.5分，满分30分）

阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

Man-made Causes

Man-made causes probably do the most damage. There are many man-made causes.  21  is one of the biggest man-made problems. Pollution  22  in many shapes and sizes. Burning fossil fuels is one thing that causes pollution. Fossil(化石) fuels(燃料)are fuels made of organic matter such as coal, or oil. when fossil fuels are burned they  23  a green house gas called CO2. Also mining coal and oil allows methane to escape. How does it escape? Methane(甲烷)is  24  in the ground.  25  coal or oil is mined you have to dig up the earth a little. When you dig up the fossil fuels you dig up the methane as well.

Another major man-made  26  of Global Warming is population. More people  27  more food, and more methods of transportation, right? That means more methane because  28  will be more burning of fossil fuels, ­ 29  more agriculture. Now you’re probably thinking, “Wait a minute, you said agriculture is going to be damaged by Global Warming, but  30  you’re saying agriculture is going to help cause Global Warming?” Well, have you  31 been in a barn filled with animals and you smell something  32 ? You re  33  methane. Another source of methane is manure. Because more food is needed we have to raise food. Animals like cows are a source of food which means more manure and methane. Another problem  34  the increasing population is  35 . More people means more cars, and more cares means more pollution. Also, many people have more than one car.

Since CO2 contributes to global warming, the increase in population makes the problem worse because we breathe out CO2.  36 , the trees that change our CO2 to oxygen are being demolished because we’re using the land that we cut the trees down from as property  37 our homes and buildings. We are not replacing the trees(an important part of our ecosystem), so we are  38  taking  39  of our natural resources and giving nothing back in  40 .

21．A．Pollution  B．Damage  C．Fossil          D．Transportation

22．A．goes      B．comes     C．takes         D．moves

23．A．give off    B．look out  C．burn away     D．take in

24．A．originally  B．mostly    C．naturally      D．usually

25．A．Because    B．When     C．While          D．But

26．A．reason      B．excuse    C．cause         D．problem

27．A．eats       B．takes       C．produces      D．means

28．A．it          B．there       C．that          D．they

29．A．and       B．or       C．though         D．but

30．A．then      B．there       C．before         D．now

31．A．ever      B．yet     C．still          D．even

32．A．Pleasant    B．terrible   C．sweet         D．nice

33．A．feeling     B．using      C．looking        D．smelling

34．A．of         B．as       C．with         D．for

35．A．pollution  B．population      C．warming   D．transportation

36．A．Also      B．However C．Therefore     D．Thus

37．A．as         B．for     C．like          D．to

38．A．Quickly   B．constantly       C．surely       D．usually

39．A．use        B．part     C．hold         D．advantage

40．A．return       B．turn     C．general        D．Total

Early this morning, I got up to make a batch of Rice Krispie treats（大米花糖） for my neighbor across the hall. She   21  greets me when we see each other, and her little boy, who’s now 4, won’t talk to me either.

Last Monday, she called the firefighters when a pan I’d forgotten on the stove caused my flat to     22  . I had gone for a walk, but when I came home the street in front of our apartment was   23   by a police car, a fire truck and an ambulance!   24   I saw them, I remembered the pan!

I felt safe knowing that    25  we don’t get along, my neighbor had done the right thing and didn’t blame me. Hence, the Rice Krispie treats.

Last Christmas, my neighbor revealed that she had been a little angry about me because of a(n) __26___ four years ago. I had apologized and asked if there was anything I could do to ___27___ our relationship, but she would not accept my     28  .

Her direct refusal really    29   me. After that, I decided I’d just leave her be—a relationship     30   two to work.

So, you see, I was really scared she was going to refuse my offer again,    31    me standing on her     32   holding my plate of treats. Then, I reminded myself of how good I had felt the day before when I’d done some random acts of ___33___ after telling myself: “ Feel the fear, and do it    34   !”

After placing the Rice Krispie treats on a beautiful plate, I opened my apartment door and met her in the hall way. I said：“I just wanted to tell you how    35   I am that you were paying attention on Monday.” I held the plate    36  her, explaining these were very sweet American treats and that she    37  try to see whether she and her family liked them. She took the plate and we talked a bit about   38   she’d become aware of the smoke in my flat before parting ways.

Back at home I    39   a “ happy dance”, because I had been kind even though I wasn’t sure it would be appreciated. I want to be able to be kind without expecting people to    40  in a certain way.

1.                A．warmly         B．occasionally      C．barely    D．frequently

2.                A．go up          B．smoke up       C．burn up  D．tear up

3.                A．filled           B．surrounded      C．blocked  D．taken

4.                A．The instant      B．For a minute     C．That moment  D．At that time

5.                A．as though       B．in case          C．now that  D．even though

6.                A．affair          B．incident        C．deed D．event

7.                A．improve        B．build           C．reunite   D．establish

8.                A．advice         B．suggestion       C．apology   D．request

9.                A．shocked        B．saddened       C．amused   D．amazed

10.               A．takes          B．costs           C．covers    D．makes

11.               A．having         B．leaving         C．keeping   D．remaining

12.               A．home          B．hall            C．apartment D．doorstep

13.               A．kindness        B．happiness       C．politeness D．willingness

14.               A．some way       B．anyway         C．somehow  D．somewhat

15.               A．kind           B．safe           C．happy D．grateful

16.               A．at             B．on            C．towards   D．over

17.               A．could          B．must           C．would D．need

18.               A．when          B．what           C．how  D．where

19.               A．performed      B．learned        C．did   D．played

20.               A．receive        B．respond        C．reflect    D．realize