2700″= °. 答案:【1】0.7523、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 of 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 (眨眼), and heartbeat.It controls your feelings and thoughts too.
Humans have the most developed
brain of all animals.Yet
it is not the largest brain.The human brain weighs
three pounds.The brain of an elephant weighs 11 pounds.So the largest brain is not always the best brain.In people, a larger brain does not mean a clever person.
1.What is the main idea of this story?
A.The human brain works very fast. 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 happens after the brain takes in the signals
from the body?
A.The brain grows faster and larger. B.The
brain tells the body what to do.
C.The body becomes more developed. D.We don't know.
3.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 control centre of the
body.
4.Which brain is the most developed?
A.The largest brain.B.The human brain.C.The
smaller brain.D.Not too big
brain.
5.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.