Some kids in boarding school often like to talk with their roommates. 1.

They won’t stop talking until someone comes to stop them. This is the reason why many of them are sleepy in class the next day. Lack of (缺乏) sleep is bad for their health. Growth hormones (生長激素) are very important if one is to grow taller. 2.

The body makes the most hormones between 10 p.m. and 2 a.m. While you are asleep. 3.

This means that if you don’t get to sleep at the time, you won’t grow taller.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源：2014-2015學(xué)年福建福州文博中學(xué)八年級上期末英語試卷（解析版） 題型：單項填空

—Could you _________me your pen, please?

—sorry, I am using it. You can ________it from Jack.

A. lend; lend B. borrowed; lent

C. borrow; lend D. lend; borrow

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年安徽銅陵縣第三中學(xué)九年級下開學(xué)考試英語試卷（解析版） 題型：補充句子

Ann: Thank you for the birthday gift, Dad. It's the best gift I have ever had.

Dad: 1.

Ann: I've always wanted a computer. 2.

Dad: And you need it to chat (聊天) with your friends, too.

Ann: I guess you are right. 3.

Dad: Send an email? Er, just do like this. 4.

Ann: Yes, Dad. I think it's easy.

Dad: 5.

Ann: I won't, I promise.

A. Have you got it?

B. Do you need help?

C. I’m glad you like it.

D. How can I turn it on?

E. I need it to do my homework.

F. Just don't spend too much time on it.

G. Could you show me how to send an email?

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年安徽銅陵縣第三中學(xué)九年級下開學(xué)考試英語試卷（解析版） 題型：單項填空

-- I can't find David. Where is he?

-- He ________ for tomorrow's competition at home.

A. prepares B. is preparing

C. has prepared D. prepared

查看答案和解析>>

科目：初中英語 來源：2013-2014學(xué)年遼寧大石橋金橋管理區(qū)初級中學(xué)中考模擬三英語試卷（解析版） 題型：書面表達

根據(jù)要求完成小作文，詞數(shù)：30—40詞左右。（5分）

在你的成長過程中，家人和老師傾注了大量的心血。他們對你的生活和學(xué)習(xí)除了給予關(guān)心，幫助之外，也會給你提出一些建議。請你根據(jù)自己的情況，列舉他們給你的關(guān)心，幫助和建議。

查看答案和解析>>

科目：初中英語 來源：2013-2014學(xué)年遼寧大石橋金橋管理區(qū)初級中學(xué)中考模擬三英語試卷（解析版） 題型：閱讀理解

A smile will tell people around you that you are a kind and friendly person. However, many people don’t smile because they think they have ugly teeth. For example, one of my classmates, Mike, doesn’t have very nice teeth, so that is why he seldom opens his mouth. He even says that he has lost confidence because of his teeth. So it is very important for us to look after our teeth. In fact, a lot of people have this problem. Some people inherit teeth problems from their parents, while others’ teeth are damaged because of bad habits, like heavy smoking, eating too much sugar or not brushing teeth often. If your teeth are in bad shape, you should see a dentist and ask for help. They can help improve your teeth and tell you how to take care of them.

Smiling can help you to feel more confidence and make people think of you as a more friendly person. If you want to keep healthy, you should not only smile but also laugh. An Indian doctor called Kataria said that young children should laugh about 30 times a day, while adults should laugh between 7 and 15 times a day. So please take this chance to smile and laugh now.

1.What has made Mike lose his confidence?

A. His bad habit B. His bad teeth

C. Not smiling D. Eating too much sugar

2. Many people don’t smile because ______

A. they don’t like smiling

B. they think they are ugly

C. their teeth are not beautiful

D. they can’t open their mouths

3. What can a dentist do according to the passage?

A. A dentist can tell you how to improve your bad teeth.

B. A dentist can help you to take care of your bad teeth.

C. A dentist can tell you how to brush your teeth.

D. Both A and B

4.If you want to keep healthy, you had better _____

A. not smile often

B. laugh all the time

C. neither smile nor laugh

D. smile and even laugh often

5. How many times should a child laugh every day in doctor Kataria’s opinion

A. Either 20 or 30 times a day

B. Between 7 and 15 times a day

C. Around 30 times a day

D. Only 30 times a day

查看答案和解析>>

科目：初中英語 來源：2013-2014學(xué)年遼寧大石橋金橋管理區(qū)初級中學(xué)中考模擬三英語試卷（解析版） 題型：單項填空

We can’t do it _____ your help.

A. with B. of C. under D. without

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年新疆克拉瑪依市七年級上期末英語試卷（解析版） 題型：翻譯

翻譯以下句子。

1.教室里有很多桌椅。_____ _____ many _____ and ______ in the classroom.

2.穿紅色衣服的女孩是誰？ Who is _____ _____ _____ _____？

3.我和Mary擅長打籃球。 Mary and I _____ _____ _____ _____ basketball.

4.大衛(wèi)認為科學(xué)很難但很有趣。 David thinks _____ is _____ _____ _____.

5.你每天早飯吃什么？ _____ _____ _____ _____ _____ _____ every day?

查看答案和解析>>

科目：初中英語 來源：2014-2015學(xué)年黑龍江大慶第三十中學(xué)七年級上期末英語試卷（解析版） 題型：單項填空

_____ name is Wang Hua, and _____ is a student.

A. He, he B. His, he

C. She, she D. His, she

查看答案和解析>>

同步練習(xí)冊答案