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（發(fā)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（細(xì)胞）of the hair are arranged（組合）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（燙發(fā)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?

1．Two parts．The shaft and the follicle.

2．Because it is（hidden）under the skin．

3．Round follicles．

4．The follicle，the hair bulb and the cells of the hair．／The follicle，the bulb and the cells．

5．By using curling irons or chemicals．／They use curling irons or chemicals·

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源： 題型：

補全對話 根據(jù)對話內(nèi)容從方框內(nèi)的七個選項中選擇五個適當(dāng)?shù)倪x項補全對話，并將其字母代號填入答題卡中相應(yīng)題號的橫線上。（本大題共5小題，每小題1分，共5分）
A: Sally are you free tomorrow evening?
B:    【小題1】    __
A: Why not go to the movies?
B: _______【小題2】_______   I like seeing movies very much.
A: _______【小題3】_______
B: Well, I like comedies because they are funny.
What about you?
A: I like them, too. I hear Mr. Bean is on.    ______【小題4】____.
B: Sure. Let’s meet at seven o’clock tomorrow evening.
A: Oh, it’s a little earlier.
A．That’s a good idea.
B．Yes, I am.
C．I’m afraid I have no time.
D．How about half past seven?
E.   What kind of movies do you like?
F.   Where will we meet?
G.   Would you like to go to the movies with me?
B: _______【小題5】_______
A: OK. See you tomorrow evening.
B: See you.

查看答案和解析>>

科目：初中英語 來源：2011-2012學(xué)年陜西西安音樂學(xué)院附屬中等音樂學(xué)校初二下期末英語卷（帶解析） 題型：閱讀理解

Barry Parker was a very successful businessman. He lived in a large house and drove a car. He wore expensive clothes and ate his meals in famous restaurants. His name was often in the newspaper. One day a newspaper reporter asked him, “What is the secret of your success(成功)?”
Barry thought for a few moments and said, “I eat a special kind of fish.” “You eat a special kind of fish! What does that do?” “It makes my brain work better.” Barry said. “What kind of fish is it?” the reporter asked. “Give me fifty dollars and come back tomorrow. I’ll have some for you.”
The reporter gave Barry fifty dollars and returned the next day. “Have you got any special fish?” “Yes. Come into the house. It’s in the refrigerator.”
Barry took the reporter into his kitchen. He opened the refrigerator and took out a very small fish. “Here you are. Have this for dinner.”
The next day the reporter called on Barry again. “Did you eat the fish?” Barry asked her. “Yes, I fried it.” “Good, do you feel different today?” “No, I don’t. And I think that fifty dollars was a lot to pay for such a small fish.” “Well done !” Barry said. “You see, the fish is working. You’re using your brain now.”
【小題1】The reporter went to see Barry Parker ________.
【小題2】The reporter wanted to know ________.
【小題3】Barry Parker made the reporter ________.
【小題4】The reporter bought the fish_______.
【小題5】The reporter ate the fish_______.

A．pay 50 dollars for a fish.
B．because he was very successful.
C．but she didn’t feel any different.
D．because she wanted to find out Barry’s secret.
E. the secret of Barry Parker’s success.

查看答案和解析>>

科目：初中英語 來源：2011-2012學(xué)年江蘇省泰州市永安初級中學(xué)八年級3月練習(xí)英語試卷（帶解析） 題型：閱讀理解

Tom was ten years old, and he was a very lazy boy, He didn't like doing any work. He had to go to school of course, but he didn't study hard there and tried to do as little work as possible. His father and mother were both doctors and they hoped that their son would become one, too, when he grew up. But one day Tom said to his mother, "When I finish school, I want to be a dustman." "A dustman?" his mother asked, she was very surprised. "That's not a very pleasant job, why do you want to become a dustman?" "Because then I would only have to work one day a week." Tom answered at once. "Only one day a week?" his mother said, "What do you mean? and how do you know?" "Well", Tom replied, "I know that the dustmen who come to our house on work on Thursday, because I only see them on that day."
【小題1】What kind of boy was Tom?
A. Tom was a clever boy.
B. Tom was a boy who didn't like to work.
C. Tom was a boy who worked very hard.
【小題2】What did Tom say he wanted to be?
A. Tom said that he wanted to be a person who collected rubbish and emptied the dustbins.
B. Tom said that he wanted to be a person who taught the children at school.
C. Tom said that he wanted to be a person who worked in a hospital.
【小題3】Why did Tom think that dustmen only worked one day a week?
A. Because Tom heard of this.
B. Because one of the dustmen had told him before.
C. Because Tom had seen the dustmen only on Thursday at his house.

查看答案和解析>>

科目：初中英語 來源：2013-2014學(xué)年遼寧省丹東市九年級上學(xué)期第二次月考英語試卷（解析版） 題型：補充句子

根據(jù)對話內(nèi)容選擇適當(dāng)?shù)倪x項補全對話。選項中有多余的選項。

A. And I think e-mail is one of the best ways to communicate with others.

B. I’ve got so many e-mails to go through.

C. I agree with you.

D. Of course!

E. How many e-mail addresses have you had?

F. I feel like getting more e-mails.

G . I am not sure whether I’m right or wrong.

A: It’s very late. Are you still on the computer?

B: Well, yes.    1.__

A: What kind of e-mails?

B: Some are messages from my friends and some are from the relatives.

A: Do you have to write them back right away?

B: 2.__  Usually people want a quick reply.

A: 3.__   

B: I’ve already had 40 people’s addresses in my address book!  4.__

A:    5.__  E-mail is really very convenient.

 

查看答案和解析>>

科目：初中英語 來源：2011年廣西省百色市中考英語試卷（解析版） 題型：閱讀理解

Here's an interview to a pilot about his life.

(R=Reporter; P= Pilot)

R: How much time do pilots actually spend flying a plane?

P: It varies (WES'J) from about 20 minutes on some domestic (區(qū)別) flights to as much as 18 hours on international flights. It all depends on if the flight is a short- or long-haul flight.

R: Do pilots take breaks during flights or do they fly the whole time?

P: Yes, we take breaks during long-haul flights. Airlines assign (指派) three or four pilots to long flights. We take turns flying the plane.

R: If pilots are traveling all the time, how do they deal with jet lag (時差)?

P: Jet lag is annoying for almost all pilots. I try to go to sleep as I would at home.

R: How important is it to know the weight and size of the plane you are flying?

P: It is very important. We weigh almost everything put into the airplane and make estimates (估計) according to the number of people on each flight.

R: Do pilots eat the airplane food?

P: Yes, we eat business class food! Airplane food changes every season and is very delicious if you don't hate eating lobster (龍蝦) every day! The pilots on the same plane are supposed to make different meal choices so that if one of the dishes causes food poisoning, only one of them will be sick. That way, at least one pilot will always be well enough to fly the plane!

1.The number of pilots depends on _.

A. how many hours a plane flies    B. what kind of planes they are

C. the airline companies assign     D. what the pilot likes

2.In order to know the weight of the airplane, the pilots must know_ __.

A. the weight of everything put into the plane

B. the number of people on the plane

C. the weight of the things and people on the plane

D. the importance of the weight

3.What's the Chinese meaning of the word "poisoning" in the passage?

   A. 中毒     B. 難吃      C. 缺少  D.浪費

4. What does the pilot think of the airplane food?

A. Airplane food is more delicious than lobster.

B. The pilot suggests having airplane food instead of lobster.

C. The pilot doesn't like the airplane food at all.

D. Airplane food is as delicious as lobster.

5. What question doesn't the reporter ask in the interview?

A. How  to keep passengers safe?

B. How long do pilots actually spend flying a plane?

C. How to deal with jet lag?

D. How to take breaks during flying.

 

查看答案和解析>>

同步練習(xí)冊答案