网址：http://m.1010jiajiao.com/timu_id_2310086[举报]
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4. have, school, your, what, you, events, did, at
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What kind of hair do you have? Is it curly or straight? Some of us are born with straight hair．Some are born with curly hair．Do you know why?
A number of things decide the way our hair is．Here are some of them．
The first thing is the follicles（毛囊）．A hair has two parts：the shaft（毛干），which is the part you see，and the follicle，which is hidden under the skin．The curly-haired have flat follicles．Those with straight hair have round follicles．
Second，how our hair looks is connected with the hair bulb（发根）．The hair bulb is the area from which the shaft grows．The way the bulb sits in the follicle can affect the hair, too．
The way the cells（细胞）of the hair are arranged（组合）in each shaft can also affect the look of the hair．These cells can be arranged in many ways，and result in different looks of hair．
Lots of people try to change the look of their hair．They use curling irons（烫发器）to make the hair curly or chemicals to make it straight．These methods are only effective（有效的）for a short time．As hair grows and time goes on，hair returns to normal．
1．How many parts does a hair have? What are they?
2．Why can't we see the follicle?
3．What kind of follicles do the people with straight hair have?
4．What can always affect the look of the hair?
5．How can people change the look of the hair for a short time?
查看习题详情和答案>>阅读下列语段。把它们组成一篇连贯的短文。
(A)An old horse has three sons．One day the father horse says to them,“It's time for you to learn some skills．”So the three horses all leave their home．
(B)In three months, the youngest son comes back home, too．He learns nothing．Only his hair looks different．
(C)Soon, the eldest son comes back home．He learns the skill of running from a leopard(豹)．He can run very far without stopping．His father is happy with him．
(D)Why is this?Because he sees a lion．The lion's hair is curly．He thinks that it is very cool．So he makes his hair curly, too．He also dyes it red．He feels happy with his hair．
(E)The old horse is very angry．He whips(鞭打)the youngest son and tells him to get out of the house．People see the marks of the whip on the youngest son' s body, and call him“Zebra”．
(F)In two months, the second son also comes back home．He learns to carry things on his back from the elephants．He feels OK even if he carries many things on his back．His father is happy with him, too．
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