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. If an individual is handicapped 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.

1.A person’s intelligence ________.

A. stays unchanged in a certain environment

B. develops with the change of environment

C. is born at the same level as anyone else’s

D. is affected by the environment as well as the sort of brain he is born with

2.What is meant by “he will never attain the level of intelligence of which he is capable.”?

A. He will never fail to develop his intelligence.

B. He won’t become so intelligent as he should.

C. He is able to reach a high level of intelligence.

D. It is impossible for him to develop intelligence.

3.Which of the following statements is true concerning the twins?

A. The sorts of brain they are born with differ greatly.

B. They set up an example for studying the environment.

C. They became orphans once they were born.

D. They were adopted boys.

4.According to the text, the environment in which the twins were reared differs in the following aspects except ________.

A. intelligence level of the parents

B. family economic status

C. the age of their parents

D. community surroundings

Inside the classroom, some learners seem to take ________ of what’s going on more than others. It looks as if they are more engaged with the process of ________ than their classmates. Teachers are ________ of this too. They will ________ say that successful students possess some or all of the following characteristics.

A willingness to ________: good learners listen to what’s gong on—not just in the sense of paying attention, but also in terms of really listening to the English that is being used, soaking(吸收) it up with ________ and intelligence.

A willingness to experiment: many good learners are not ________ to “have a go”. They are ________ to take risks, to try things out and see how it works. Of course, not all successful language learners are extroverts(性格外向的人), but the ________ to use the language is an important one.

A willingness to put forward questions: ________ some teachers can become irritated by students who are constantly ________ difficult question, the urge to ________ why is part of a successful learner’s equipment. Good teacher frequently invite students to ask if they don’t ________ something. Good learners do this, judging when it is ________ to do so and when it is not.

A willingness to accept correction: good learners are prepared to be corrected if it ________ them. They are keen to get feedback from the ________ and act upon what they are ________. But this only works where teachers can offer constructive criticism ________ castigating(惩罚) them for being wrong. Giving feedback involves ________ students for things they do well, and offering them the ability to do things better where they were less ________. It involves teachers in judging their students’ responses to correction so that they can act accordingly.

1.A. chargeB. controlC. advantageD. place

2.A. travellingB. learningC. shoppingD. working

3.A. sickB. tiredC. awareD. proud

4.A. frequentlyB. suddenlyC. graduallyD. immediately

5.A. reviewB. listenC. writeD. repeat

6.A. worryB. angerC. eagernessD. surprise

7.A. anxiousB. confidentC. afraidD. lucky

8.A. preparedB. ashamedC. disappointedD. puzzled

9.A. ideaB. reasonC. opinionD. urge

10.A. unlessB. untilC. althoughD. since

11.A. solvingB. answeringC. discussingD. asking

12.A. carry outB. find outB. make sureD. make up

13.A. understandB. explainC. predictD. remember

14.A. strangeB. easyC. expensiveD. appropriate

15.A. bothersB. helpsC. changesD. hurts

16.A. teacherB. deskmateC. parentD. assistant

17.A. blamedB. announcedC. toldD. persuaded

18.A. less thanB. other thanC. rather thanD. more than

19.A. comfortingB. greetingC. ignoringD. praising

20.A. successfulB. importantC. attractiveD. popular

阅读理解。

Ever wonder how this season’s celebrations affect the environment? Guest blogger Krista Fairles takes an amusing look at this very topic:

The holidays are a wonderful, cheerful time when most people wait for Santa to bring them presents. But I’m not like most people. I spend my time wondering just what the environmental impacts of Santa Claus and his reindeer are, and more importantly, how I can calculate those impacts.

Lately I’ve been particularly curious as to whether Santa’s old sled is a clean green flying machine, or if he should be replacing his 8 reindeer with an environmentally-friendly car.

I should mention that, surprisingly, I was unable to find statistics specific to Santa’s magical flying reindeer, so these calculations use numbers from various sources and may not represent actual pollution caused by Santa and his animals. In other words, don’t complain to the government about the damage Santa is causing the environment based on this article.

Santa’s yearly trip around the globe is 44,000km long, twice the average of a North American driver. If we assume that the magic provides the altitude for this trip, then reindeer power only needs to push Santa’s sled forward. To complete the trip in 12 hours, I estimate they must travel at a speed of about 3100km/h. To travel at this speed, for this length of time, the reindeer need to eat an incredible 980 million calories each!!

So the next question is: how much food is in 980 million calories? Well, if they’re eating corn, they’d need to eat 16,500 lbs each — or 1.6 acres of food. Growing 12.8 acres of corn has its own implications for the environment that we’ll leave for another calculation.

We now need to consider that during the global trip the reindeer are “letting out” some of that corn in the form of methane (甲烷,沼气). A resting cow produces 110 kg of methane per year, so flying reindeer would each let out about 4.8 tons. With methane causing 20 times the global warming damage of CO2, and the altitude increasing that damage by 1000% that another 20 times, we can put Santa’s round-trip emissions at 15,488 tons. This is much more than the 100 tons an environmentally-friendly car would release on the same trip!

Bad Santa.

1. Which aspect does the writer NOT include in her analyses about reindeer’s influence on environment?

A. Distance covered. B. Calories consumed.

C. Tons of waste let out. D. Money spent on food.

2.According to Paragraph 6, how many acres of corn would Santa need to feed 10 reindeer?

A. 1.6. B. 16.

C. 12.8. D. 128.

3.Which of the following statements would the writer most probably agree with?

A. Christmas celebrations are really a waste of money.

B. Vegetarians are more likely to survive than meat-eaters.

C. Raising animals has a negative influence on environment.

D. The car industry does less harm to environment than farming.

4.Which of the following words best describes the language style of the passage?

A. Humourous and concerned. B. Cheerful and friendly.

C. Academic and formal. D. Serious and boring.

5.Which of the following is the best title for this passage?

A. Is Santa driving clean and green?

B. Santa, watch where you’re going!

C. Santa Claus is coming to town!

D. Let’s reduce waste on Christmas celebrations!

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