问题 读图填空题

不论严寒还是酷暑,人的体温始终接近37℃,下图是人体维持体温稳态的调节过程模式图,据图分析回答下列问题:

(1)①~④表示______调节过程,调节中枢位于_______________。

(2)激素A、B分别表示_______,在体温调节过程中,B激素的作用是______。

(3)激素B对垂体的作用是__________,体现了B激素的负反馈调节机制。负反馈调节在生态系统中也普遍存在,是生态系统_______的基础。

(4)在寒冷的环境中垂体释放的_____激素减少,使人体尿量增加。同时,毛细血管_____,散热减少。

答案

(1)神经     下丘脑

(2)促甲状腺激素、甲状腺激素     提高细胞的代谢速率,使机体产生更多的热量

(3)抑制垂体分泌促甲状腺激素     自我调节

(4)抗利尿     收缩

问答题 案例分析题

1 There are many arguments for and against television.

The poor quality of its program is often criticized and TV

commercials are also boring. So television is undoubtedly 1.__________

a great comfort to many lonely and elderly people.

2 The manager of a large office building had received

many complains about elevator service in the building,

but he engaged a group of engineers to study the situation 2.__________

and make recommendation for improvement.

3 We asked a lady, who replied that she thought

you could tell a well-mannered person by the way

they occupied the space around them——for example,

when such a person walks down a street he or she is

constantly unaware of others. Such people never 3.__________

bump into other people.

4 Until the very latest moment of his existence,

man has been bound the planet on which he

originated and developed. Now he has the capability

to leave that planet and move out into the universe to

those worlds which he has known previously only directly. 4.__________

5 One major decision which faces the American

students ready to begin higher education is the

choice of attending a large university or a small

college. The large university provides a wide range of

specialized departments as well as numerous courses

within such departments. The small college, therefore, 5.__________

generally provides a limited number of courses

and specializations but offers a better student-faculty

ratio, thus permitting individualized attention to students.

6 Music the Johnny has learned to appreciate as

unpleasant is just dull noise to Jimmy——and quite 6.__________

possible, vice versa.

7 We are learning, finally, that silence is a natural

resource and must be protected by law. It appears

that we all find company in sound, if we all 7.__________

demand a little quiet from time to time.

8 The farmer aroused at down or before it and

had much work to do, with his own muscles as his

chief source of power. He used axes, spades and 8.__________

other complicated tools.

9 Whether women who have started a career

will attain pay equality with men rests on at least

two factors. First, will most of them continue

part-time at their jobs after they have children? A 9.__________

break in their employment, or a decision to work

part-time, will slow their raises and promotions as

it would for men.

10 Whether true or not, the story illustrates the

problem with idioms. They are almost possible to 10.__________

understand from the meanings of the individual

words. And with English idioms, even the same

words may have different meanings.

在5处填写改错内容。

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