There are two factors which determine an individual's intelligence. The first is the sort of brain he is born with. Human brains differ considerably, some being more capable than others. But no matter how good a brain he has to begin with, an individual will have a low order of intelligence unless he has opportunities to learn. So the second factor is what happens to the individual—the sort of environment in which he is reared (培养). If an individual is handicapped (妨碍) environmentally, it is likely that his brain will fail to develop and he will never attain the level of intelligence of which he is capable.
The importance of environment in determining an individual's intelligence can be demonstrated by the case history of the identical twins, Peter and Mark X. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old, their parents died, and they were placed in separate foster homes. Peter was reared by parents of low intelligence in an isolated community with poor educational opportunities. Mark was reared in the home of well-to-do parents who had been to college. He was read to as a child, sent to good schools, and given every opportunity to be stimulated intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to measure their intelligence. Mark's I.Q. was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities, the twins, having identical brains, would have tested at roughly the same level.
【小题1】This passage can be best titled_________.

ASK LASKAS

YOU'VE GOT QUESTIONS. SHE'S GOT ANSWERS

Q: My problem is computer gaming. I do it day and night, averaging four hours of sleep. I can't control of this, and I don't know where to go for help. Do you?                                 —Player

A: Dear Player,

You have an addiction. For some people playing video games releases dopamine, a powerful brain chemical that makes you feel good. You'd toss your cigarettes if you were ready to quit, right? To kick the habit, get help from a health professional. And don't look for help on line; that would be like an alcoholic going to the bar for advice.

Q: My brother's wife just had triplets(三胞胎). This is such a joy! Yet every time I share the news with co-workers, they ask me if she was on fertility pills. I think this is rude—or has society just become so talk-show numbed (麻木的)that you can ask anyone anything?                    —No Show Host

A: Dear Host,

Yes. Our society has become increasingly disrespectful of privacy. But don't blame it all on the talk-shows. Continue to celebrate and greet impolite questions with stony silence. Their fertility history is nobody's business but their own.

Q: I work at an amusement park, and my manager steals supplies. She has a catering business on the side, and we've seen her load up her van at the back gates. The big bosses think she is the best thing since buttered bread, and we're all afraid that if we say anything, we'll lose our jobs. What can we do?        —Righteous

A: Dear Righteous,

Be sure you're right. You must have evidence about what and why things are going out the back gates. Once you know for certain, it's time to go to the bosses and report what you have seen.

Q: My stepson's wife sometimes leaves their eight-year-old home alone for "a short run to the store." That may be an hour or so. I believe by law we should report it. What do you think?

—The In-laws

A: Dear Laws,

I don't know what the child-protection laws in your state are, but I do know that children need care and attention. This child may be able and unafraid, but kids aren't always careful. It also sounds like there is stress in your family relationship. One thing you can do to help this situation is offer to baby-sit when Mom needs to step out.

1.Which of the following statements is true?

A. Dopamine is a powerful brain chemical good to our health.

B. Looking for help on line is like getting help from a health professional.

C. Player is a video game addict who smokes and sleeps few hours.

D. Player is advised to stay clear of the screen.

2.According to the Q&A,        .

A. Host's colleagues are insensitive

B. The talk-show is to blame

C. Somebody's business is everybody's

D. Host's sister-in-law was on fertility pills

3.What we can infer from the Q&A is       .

A. The Mom is not to blame because she needs a short run to the store

B. Children need care and attention, though not for all of them

C. Laws, the old lady, wants to report what she sees to the child's father

D. Laskas doesn't seem to approve of Laws' trying to report what she sees

4.Which Q&A mentioned transport?

A. The first             B. The second.         C. The third.       D. None.

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项.

   Speaking to a group can be difficult, but listening to a bad speech is truly a tiresome task—especially when the speaker is confusing. Don’t want to confuse your audience? Follow these suggestions:

1.__________

   When it comes to understanding new information, the human brain needs a little time. First, we hear the words; then, we compare the new information to what we already know. If the two are different, we need to pause and think. But a breathless speaker never stops to let us think about what he or she is saying and risks confusing us. Slow it.

2.__________ 

   Sometimes we all start a sentence one way and then switch directions, which is very difficult to follow. When you confuse your listeners with opposing information, you leave the audience wondering what part of the information is right and what part they should remember. Instead of relying and keeping correcting yourself, work to get the facts clear and straight.

3.__________  

   Jumping from point to point as it comes to your mind puts the onus (责任）on your listeners to make up for your lack of organisation. And it’s confusing for them to listen, reorganise, and figure out what you’re saying all at once. But going smoothly from one point to the next helps them understand information more easily. You can arrange things from beginning to end, small to large, top to bottom or by some other order. Just be sure to organise.         

4.__________  

   Repeated use of um, ah, like, you know and some other useless noises can drive an audience crazy. It makes the speaker sound uncertain and unprepared, and it can leave listeners so annoyed that they can’t pay attention. Recently I attended a speech that was marked by so many ums that audience members were rolling their eyes. Was anybody grasping the intended message? Um, probably not.

5.__________  

   Many speakers finish up their speeches with question-and-answer (Q & A) sessions, but some let the Q & A go on without a clear end. The audience is often left confused about whether the meeting is over and when they can get up and leave. Do your listeners a favour by setting a time limit on questions, and close your speech with a specific signal—even if it’s something simple like, “If you have any more questions, you know where to reach me.”

Or even more to the point, conclude your speech with “Thanks for your time. ”

A. Be well-organised.

B. Close with a Q & A.

C. Don’t be contradictory.

D. Bring it to a specific end.

E. Speak slowly and pause.

F. Drop unnecessary words.

G.how to make life simple.

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项.
Speaking to a group can be difficult, but listening to a bad speech is truly a tiresome task—especially when the speaker is confusing. Don’t want to confuse your audience? Follow these suggestions:
1.__________
When it comes to understanding new information, the human brain needs a little time. First, we hear the words; then, we compare the new information to what we already know. If the two are different, we need to pause and think. But a breathless speaker never stops to let us think about what he or she is saying and risks confusing us. Slow it.
2.__________ 
Sometimes we all start a sentence one way and then switch directions, which is very difficult to follow. When you confuse your listeners with opposing information, you leave the audience wondering what part of the information is right and what part they should remember. Instead of relying and keeping correcting yourself, work to get the facts clear and straight.
3.__________  
Jumping from point to point as it comes to your mind puts the onus (责任）on your listeners to make up for your lack of organisation. And it’s confusing for them to listen, reorganise, and figure out what you’re saying all at once. But going smoothly from one point to the next helps them understand information more easily. You can arrange things from beginning to end, small to large, top to bottom or by some other order. Just be sure to organise.         
4.__________  
Repeated use of um, ah, like, you know and some other useless noises can drive an audience crazy. It makes the speaker sound uncertain and unprepared, and it can leave listeners so annoyed that they can’t pay attention. Recently I attended a speech that was marked by so many ums that audience members were rolling their eyes. Was anybody grasping the intended message? Um, probably not.
5.__________  
Many speakers finish up their speeches with question-and-answer (Q & A) sessions, but some let the Q & A go on without a clear end. The audience is often left confused about whether the meeting is over and when they can get up and leave. Do your listeners a favour by setting a time limit on questions, and close your speech with a specific signal—even if it’s something simple like, “If you have any more questions, you know where to reach me.”
Or even more to the point, conclude your speech with “Thanks for your time. ”
A. Be well-organised.
B. Close with a Q & A.
C. Don’t be contradictory.
D. Bring it to a specific end.
E. Speak slowly and pause.
F. Drop unnecessary words.
G.how to make life simple.

根据短文内容，从下框的A～F选项中选出能概括每一段主题的最佳选项，并在答题卡上将该选项涂黑。选项中有一项为多余项。