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10.Why do people cry?Scientists say the body produces(产生)tears because it needs them.One kind of tears(眼泪)is for the eye,the other is for the heart.They both work as cleaners.If something else like dust(灰尘)gets into your eye,tears also come into the eye to clean it out.If you are hurt by something,your strong feelings produce some poisonous chemicals(毒素)in your body,and at the same time,tears come out with them.If tears don't help clean out these poisonous chemicals,they will do harm to(伤害)the heart.
In the United States men have heart problems more often than women do.Doctors say heart problems have something to do with the pressures(压力)of living and working now.Perhaps men have more of these illnesses because they do not cry enough.They need to cry more.
In fact,you can find many ways of reducing(减少)the pressures to keep fit.Crying is a natural(自然)and physical(生理)one.
43.How many kinds of tears does the body usually produce?
Two/2.
44.What do tears do when dust gets into your eyes?
Tears also come into the eye to clean it out.
45.Will you cry if you fail in the exam?Why or why not?
Yes.Because I am sad..

分析 本文主要讲述了人体会产生两种眼泪,一种是为了眼睛,另一种是为了心脏.并分别叙述了这两种眼泪如何对人体产生作用的.

解答 43.Two/2.细节理解题.根据One kind of tears(眼泪)is for the eye,the other is for the heart.一种是为了眼睛,另一种是为了心脏.可知身体产生两种眼泪,故答案为Two/2
44.Tears also come into the eye to clean it out.细节理解题.根据If something else like dust(灰尘)gets into your eye,tears also come into the eye to clean it out如果像灰尘一样的东西进入眼睛,眼泪也会进入眼睛来清洁它.可知介绍了眼泪可以清洁眼睛,故答案为Tears also come into the eye to clean it out.
45.Yes.Because I am sad.细节理解题.这是一个开放性的问题,只要合情理都可以.注意一般疑问句用yes,No来回答.故答案为Yes.Because I am sad.

点评 主要是根据前提问题来做出相应的要求内的答案,题型比较灵活但是考查了学生多方面的知识和技能,要做好这类题,就要注意平时知识的积累,包括单词、词组、句型等.

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