【題目】根據(jù)短文內(nèi)容，選擇正確答案。
D
The brain is the boss of the body. Your eyes, ears, nose, and skin tell your brain what is going on around you. Other parts of your body tell your brain what is going on inside you. Your brain takes in the signals. It tells your body what to do with them. When you touch fire, your skin tells your brain that your finger is too hot. Your brain tells you to move your finger. All these happen very fast. Your brain also controls your breathing, blinking, and heartbeat. It becomes your feelings and thoughts too.
Humans have the most developed brain of all animals. Yet it is not the largest brain. The human brain weights three pounds. The brain of an elephant weights 11 pounds. So the largest brain is not always the best brain. In people, a large brain does not mean a clever person.
（1）What is the main idea of this story?
A.The human brain works very hard.
B.The largest brain is not always the best brain.
C.The brain controls the body.
D.The best brain is the largest brain.
（2）What does “the boss of the body” mean?
A.The signals.
B.The most developed body part.
C.The main part of the body.
D.The centre of the body.
（3）Which kind of brain is the most developed?
A.The largest brain.
B.The human brain.
C.The smaller brain.
D.Not too big brain.
（4）What are the things that the human brain does?
A.Takes in signals.
B.Controls breathing.
C.Controls feelings and thoughts.
D.A, B and C.

【答案】
（1）C
（2）B
（3）B
（4）D
【解析】本文介紹大腦的功能。
⑴主旨大意。通讀文章可知大腦是身體的中樞，它控制著身體的各個(gè)部分。故選C。
⑵詞義猜測(cè)。根據(jù)第一段的敘述可知大腦是身體最發(fā)達(dá)的一部分。故選B。
⑶細(xì)節(jié)理解。根據(jù)第二段可知人腦是最發(fā)達(dá)的。故選B。
⑷細(xì)節(jié)理解。根據(jù)文章敘述可知人的大腦接受信號(hào)、控制呼吸、控制情感和思維。故選D。

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