How do you remember the way to your house? Where do dreams come from? It is your brain(大腦) that does these things. A British scientist showed that “sleep can improve one’s memory.” It’s not a dream for students to study when they sleep. In fact, your brains is working day and night. If you learn words before bed, a certain part of the brain may help you to remember the words while you sleep. What’s more, another scientist in the USA found that there was a “talent button(天才按鈕)” in the human brain. It might make a person more talented.
There are more interesting things about the brain. Your brain uses less energy than a fridge light. Just two bananas can give the brain enough energy to work for a whole day. According to some scientists, yawning(打哈欠) keeps our brains “cool”, which makes us think quicker.
Here are some pieces of advice to keep a good brain:
Eat healthy food.
Get a lot of playtime or exercise.
Don’t drink or smoke.
Use your brain a lot.
小題1: A British scientist found out that ________ could improve our memories.
A．drinkB．dreamsC．sleepD．bananas
小題2: According to the passage, if we want to have a good brain, we should ________.
A．use our brains moreB．sleep fewer hours
C．work longer hoursD．remember fewer things
小題3:Which of the following is TRUE according to the passage?
A．Our brains only work in the daytime.
B．Our brains need much energy every day.
C．Smoking can keep our brains healthy.
D．Getting exercise is good for our brains.

小題1:C           
小題1:A
小題1:D

小題1:根據(jù)A British scientist showed that “sleep can improve one’s memory.”描述,可知選C.           
小題1:根據(jù)文后提出的建議Use your brain a lot. 可知選A
小題1:根據(jù)文后提出的建議Get a lot of playtime or exercise.可知選D
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語 來源：不詳 題型：閱讀理解

The cost of medical care in the United States is very high. The time and money that doctors spend on their medical education is probably one reason for this problem.
A visit to a doctor’s office costs from 15 to 50 dollars. It’s so expensive. Many people in the United States think that doctors are overpaid. However, most doctors disagree. They say that they were asked to study medicine for a long time. Tuition for many years of medical education costs a lot of money. Doctors say that it is necessary for most medical students to borrow money from the bank to pay their tuition. Because their money must be repaid to the bank, young doctors need to receive a lot of money for their work. So they charge(收費(fèi))people high prices for medical care.
Therefore the cost of medical care in America is high. Because high tuition is one cause of high costs, one way to lower costs would be to have medical school that are free or have low tuition.
小題1:The underlined word "tuition" in the passage means “______”
A．eating at schoolB．studying the courses
C．money used for educationD．living at school
小題2:The main idea of the passage is that______.
A．a(chǎn) visit to a doctor’s office may cost much in the USA
B．the cost of medical care is the only reason for the high costs in the USA
C．medical care in the USA costs a lot of money because doctors want to be rich
D．the high cost of tuition in medical schools is one reason for the high cost of medical care in the USA
小題3: The cost of medical care in the USA is very high. What does the writer think about it?
A．He agrees that doctors are overpaid.
B．He thinks it is a big problem and suggests (建議) solving (解決) it.
C．He doesn’t think the medical students should borrow money from banks.
D．He doesn’t think it necessary for the medical students to study for a long time.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：完形填空

More and more people are becoming interested in the internet. They have formed a bad habit. In fact,the bad habit has become a (31)    —Internet Addiction Disorder (IAD網(wǎng)絡(luò)綜合癥）.Staying (32）  for more than six hours a day (33)   working or studying, and feeling very upset from not being able to get online, are the two major symptoms (癥狀)of IAD
Internet addiction(上癮) is（34）    in China now. A recent research （35） that 42% Of Chinese young people get quite interested in the web, while only 18% of Americans feel in the same (36)  .
What causes IAD? Some people believe that It's the lack(缺乏) of family care. Most children in China are the (37) ones in their families. They are only told to (38) hard, but few really care about their personal interest .So some children would like to keep (39)  away from the real world
How can people stay away from IAD? Don t get online any more, go back to the real world and if it doesn't work, go to see the (40)___,
小題1: A. disease B.task C. rule
小題2: A .home B.online C. in school
小題3: A. because of B. Out of  C. instead of
小題4:A. changing B. increasing C .becoming less
小題5:A. shows B. notices C knows
小題6:A. road  B. way C. country
小題7: A. best B .worst C. only
小題8:A. study B. play C. think
小題9: A. themselves B.their parents C. their teachers
小題10: A. friend B. teacher C.doctor

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

What does it feel like to break a bone (骨頭)? It’s different for everyone, but the pain is often sharp (嚴(yán)重). If the break is small, however, the person may not feel much pain at all. If you think that you or someone else has broken a bone, the most important things to do are to stay calm, make the hurt person comfortable, and call the doctor. Do not move the injured body part since movement could make it worse.
To treat the break, the doctor will need to take an X-ray. This gives the doctor the information he or she needs to set (接上) the bone: to put it back to its normal place. If the bone is large or it is broken in more than one place, the doctor may need to use metal pins (鋼釘) to set it. After the bone has been set, the next step is usually putting on a cast, the special, hard thing that will keep the bone in place for a month or two.
Your bones are excellent at healing themselves. Broken bones will produce many new cells (細(xì)胞) and tiny blood vessels (血脈). These cover both ends of the broken part, and close up the break until the bone is as whole and strong as before.
小題1: Which of the following is the best title for the passage?
A．How to Know if a Bone is Broken
B．How Broken Bones Heal Themselves
C．Common Causes (原因) of Broken Bones
D．What You Should Know about Broken Bones
小題2: When someone breaks his bone, the following should be done except ______.
A．a(chǎn)sking the doctor for helpB．comforting the hurt person
C．moving the injured partD．staying calm
小題3:Which is the correct order to treat the break?
a. take an x-ray  b. use metal pins to set it  c. put it back to its normal place  d. put on cast
A．a(chǎn)→b→c→dB．a(chǎn)→c→b→dC．a(chǎn)→d→c→bD．d→a→b→c
小題4:The underlined word “heal” in Paragraph 3 is closest in meaning to “______”.
A．break againB．become worse C．wound or hurtD．become healthy again
小題5: Where would you probably read this passage?
A．In a story book.B．On a poster.C．In a health care book.D．In a chemistry book.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

Everyone has got two personalities (性格) —the one that is shown to the world and the other that is secret and real. You don’t show your secret personality when you’re awake because you can control yourself, but when you’re asleep, your sleeping position shows the real you. In a normal night, of course, you often change your sleeping positions. The important position that best shows your secret personality is the one that you go to sleep.
If you go to sleep on your back, you’re a very open person. You normally trust people and you are easily influenced by new ideas. You don’t like to make people unhappy, so you never express your real feelings. You’re quite shy and you aren’t very confident.
If you sleep on your stomach, you are a person who likes to keep secrets. You worry a lot and you’re always easily becoming sad. You never want to change your ideas, but you are satisfied with your life the way it is. You usually live for today not for tomorrow.
If you sleep on curled up (蜷縮), you are probably a very nervous person. You have a low opinion of yourself and often protect yourself from being hurt, so you are very defensive. You’re shy and you don’t usually like meeting people. You like to be on your own.
If you sleep on your side, you have usually got a well-balanced (平衡的) personality. You know your strengths and weaknesses. You’re usually careful. You have a confident personality. You sometimes feel worried, but you don’t often get unhappy. You always say what you think, even if it makes people angry.
小題1:You may find the passage in_____.
A．a(chǎn) science magazineB．a(chǎn) guide book
C．a(chǎn) sports newspaperD．a(chǎn) story book
小題2: When does the sleeping position best show your secret personality?
A．In the daytime.B．At the beginning of sleep.
C．At night.D．During the deep sleep.
小題3:Tina hardly tells her secrets to her friends. She probably goes to sleep _______.
A．on curled upB．on her stomach
C．on her backD．on her side
小題4: What does the word "defensive" mean in the passage?
A．易怒的B．攻擊性的C．外向的D．有戒心的
小題5:What does the passage tell us?
A．Sleeping on your side is the best way of sleeping.
B．Changing positions will cause sleeping problems.
C．Sleeping positions show people’s secret personalities.
D．Enough sleep makes people look better and healthier.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

Almost all of us have unpleasant habits. We all want to get rid of(擺脫) them, but we don’t know proper ways. Here’s some advice.
●Write down all the reasons why you want to stop some behavior. Look at the reasons very often.
●It’s clever to do something else when you want to stop your bad habits. If you get angry easily, for example, you can go out for a walk.
●Decide what you’ll do to reward(獎(jiǎng)勵(lì)) yourself if you really get rid of your bad habits.
●If you get too heavy, keep junk food out of your house.
●Bad habits develop over years, so you can’t get rid of them very soon. So you should be patient.
●Don’t be afraid to ask others for support. You can talk to your friends, family or other people. When you talk to them, they might be able to provide some advice that you can’t get from yourself.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

We all need a healthy environment, but we produce waste every day and it does harm to our environment. Though we are young, we can still do something to help. In fact, even the simplest everyday activities can make a real difference to the environment. Here are some ideas for you to live a green life.
Remember these three words: reduce, reuse and recycle.
Reduce means “use less”. Don’t waste things. This saves money and reduces pollution and waste going into the environment. Before we buy something new, think if it is really necessary or maybe the old one will be just as good! When we do buy things, choose local products if possible, and try not to buy too many things from abroad.
Reuse means “use again”. Use things for as long as possible. When we buy things, make sure that they last a long time. We should take care of them so that they will last, and we should repair them if we can instead of throwing them away and buying new ones. Don’t use a paper cup or a paper bag. It’s better to use a china cup and a lunch box because you can use them again.
Recycle means “change things into something else”. Although it takes energy to change something into something else, it’s better than throwing things away or burning them. Find out what can be recycled in your neighbourhood and take part in recycling programmes. We should also buy products made from recycled materials, such as recycled paper, to help save trees.
Title:  46  to Live a Green Life
We produce waste every day and it is   47  to us. We can do something to help.
Ideas
Dos
Don’ts
To   48 
Use less
* Try to save something.
* Don’t buy too many things from foreign   49 .
To reuse
Use   50 
* Use things for as long as possible.
* Buy things that last long.
* Take care of things or   51  the old things.
* Don’t use   52  cups or bags.
To recycle
Change things into something   53  
*Join in recycling programmes.
*Buy   54  made from recycled materials.
* Don’t   55  things
away or burn them.
 

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

Teeth are important. Strong, healthy teeth help you chew foods that help you grow. They help you speak clearly. And, they help you look your best. Here are some advice for you to take care of your teeth.
● Brush your teeth the right way.
Brush your teeth at least twice a day after breakfast and before bedtime. If you can, brush after lunch or after sweet snacks（快餐）, too.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
Brush all your teeth, not just the front ones. Spend time brushing teeth along the sides and back of your mouth. Brush away from your gums（齒齦）, too.
Spend at least three minutes each time you brush. Play a song you like to help pass the time.
Get a new toothbrush every three months. When you buy your tooth brush, be sure it has soft bristles（鬃毛）.
● Learn how to floss your teeth.
Flossing is a very important way to keep your teeth healthy. Food may hide in places where a toothbrush cannot get to, like the space between the teeth. Flossing can help get rid of it. Carefully move the floss between two teeth, up and down. You need to floss your teeth at least once a day.
● Have good eating habits.
You need to be careful about what you eat and drink. Eating sugar is a major cause of tooth decay（腐朽）. Eating sugar before you go to bed can make things even worse. Eat lots of fruit and vegetables and drink water instead of soda.
小題1:           is helpful to your teeth.
A．Eating fruit and vegetablesB．Eating sweet snacks
C．Eating sugarD．Drinking soda
小題2: Which is the right way of brushing the teeth?
A．We should brush our teeth once a day.
B．We should keep our toothbrush away from our gums.
C．When we brush our teeth, at least three minutes is needed.
D．Brush our teeth before breakfast.
小題3: From the passage, do you know how to floss the teeth?
A．Go to see a dentist.B．Fix a floss on the teeth.
C．Move the floss between two teeth.D．Chew the floss in the mouth.
小題4:Which of the following is NOT true ?
A．Flossing can help get ride of the food that hides between two teeth.
B．Healthy teeth can help you look more beautiful.
C．We don’t have to brush our teeth if we eat a lot of fruit and vegetables.
D．Your toothbrush should be changed every three months.
小題5: The best title for the passage is          .
A．How to floss your teeth.
B．How to have good eating habits.
C．How to brush your teeth.
D．How to take care of your teeth.

查看答案和解析>>

科目：初中英語 來源：不詳 題型：閱讀理解

There are some easy things you can do to protect the environment and the earth. Choose ideas from the list or come up with a few of your own.
·Plant flowers, grass or trees.
·Whenever you visit a park or beach, take away what you bring there—keep rubbish in a bag until you can put it in a dustbin.
·Turn off the lights and TV sets when you leave the room. This can save a lot of electricity.
·Turn off the tap when you brush your teeth. You can save some water by not letting it run. Also, use a glass cup instead of a paper cup because this saves paper.
·Keep the doors and windows closed in winter to keep warm air in.
·Give your old books and magazines to a library instead of throwing them away.
·Give your old clothes to poor children you know instead of throwing them away.
·Use both sides of paper.
·Stop pouring dirty water into the rivers or lakes nearby.
·Encourage all your friends to do the same things you do to help protect the earth. You don’t have to wait until Earth Day to do these things. Make every day Earth Day. If everyone makes a contribution to protecting the environment, the world will become much more beautiful.
小題1:From the above, we know that this is           .
A. a sign           B. a proposal (倡議書)     C. an ad(advertisement)
小題2:The writer tells us           .
A. that we can’t do all these things until Earth Day
B. to pour dirty water into the rivers
C. to save water by not letting it run while brushing our teeth
小題3: We can            to save paper.
A. use a paper cup      B. use both sides of paper  C. give new books to a library
小題4:Which of the following is wrong according to the writer?
A. Turn off the lights when you leave the room.
B. Close the doors and windows in winter.
C. Use a paper cup when you brush your teeth.
小題5: What’s the best title of the passage?
A. Protect the Earth        B. Save Money      C. Make Better Use of Old Things

查看答案和解析>>

同步練習(xí)冊(cè)答案