Do you often feel tired? Do you sometimes fee...

Do you often feel tired? Do you sometimes feel uncomfortable on your neck and back? It may because of the radiation (辐射) from your computer. If you spend three hours or more in front of a computer, you may feel terrible because of the radiation.

The safe amount of radiation is 25V/m. Do you know how much radiation our computers give off?

Keyboard: 1,000 V/m　　　　 Mouse: 450 V/m

Monitor: 218V/m　　　　　　 CPU: 170 V/m

Laptops: 2,500 V/m

Ways to protect yourself from harmful computer radiation:

1．Put some green plants on your desk. They can take in radiation.

2．Drink two to three cups of green tea a day and eat an orange daily. They keep us healthy.

3．Use a screen filter (屏幕过滤器) for your monitor.

4．Avoid having metal (金属的) objects near your desk.

5．Put the back of the computer to the wall. Most of the radiation comes from the back.

6．Keep your monitor at least 50 cm away from your face.

7．Allow fresh air to move around your computer room.

8．Eat healthily — especially fruit and vegetables.

9．Turn off your computer if you have to rest nearby.

1.Which of the following is the most dangerous?

A. Eating some junk food.

B. Being busy only on the computer.

C. Taking less exercise in a day.

D. Sleeping too much in a day.

2.What’s the first paragraph about?

A. To tell the danger of radiation.

B. To tell us what radiation is.

C. To tell why there is radiation.

D. To tell the importance of radiation.

3.Which part of a computer has the most radiation?

A. The monitor.　　 B. The mouse.

C. The keyboard.　　 D. The CPU.

4.How many pieces of advice are about eating?

A. One.　　 B. Two.　　 C. Three.　　 D. Four.

5.What’s the purpose (目的) of this passage?

A. To tell us which kind of computer we should buy.

B. To show us how dangerous computers are.

C. To encourage us to use the laptops more often.

D. To tell us to get away from computer radiation.

八年级英语阅读单选中等难度题查看答案及解析

How do you feel when you get up in the morning? Happy and active or tired and weak?

Do you often wake up with a headache(头痛)? Well, if the answer is yes, take Dr. Talbot's advice and start feeling better.

☆ Get up and move. If you hate feeling tired and unhappy, you should start exercising, Try running, swimming or cycling. When we exercise, our body produces special chemicals (化学药品) that give us energy and make us feel happier. If you can't stand exercising, listen to your favorite music and dance to it. That's exercise, too.

☆ Eat healthily. You should eat three balanced (平衡的) meals every day and you shouldn't eat too much fast food. If you need some extra (额外的)  energy the whole day, make an energy drink. Mix (混和) together fresh fruit juice and low-fat milk. It tastes great!

☆ Go out and enjoy nature. The smell of flowers will make you feel happy. Even the smell of your favorite food can change the way you feel!

☆ Wake your body up. When you have a shower, change the temperature of the water----from hot to cold and back to hot again. You'll feel the difference.

☆ Laugh! You should laugh for, at least, three minutes, three times a day. It will make you feel great!

八年级英语阅读理解困难题查看答案及解析

Do you often feel tired or hard to concentrate(集中精力) in class ? If your answers to this question  is yes,  ________1..  .Not getting enough sleep can lead to many kinds of problems.

New studies show that not only Chinese students suffers from lack(不足) of sleep，American students also have the same problem .________2.________Why are they so tired ? One big reason is the use of electronic products（电子产品）.

A recent survey finds out that 71% of American kids aged 8 to 18 have TVs in the rooms and  about 36% have computers in their rooms.________3.________ , playing video games ,sending text messages to friends and watching TV before bedtime.

How to solve the problem ? Scientist advise  “________4.. ”Spending more time on sleep can help students stay healthy  ________5.________

根据以上内容，从下列五个选项中选择适当的句子还原到短文中，使短文完整与正确。将其标号在答题卡上涂黑。（每小题2分，共10分）

八年级英语阅读理解中等难度题查看答案及解析

We middle school students always have _______ homework to do every day that we often feel tired during the day.

A. too much　　 　　 B. too many　　 　　 C. so much

八年级英语单项填空中等难度题查看答案及解析

If you often feel tired and the doctor can’t find anything wrong with you, you may be in a state of subhealth(亚健康). Subhealth is a state between health and illness. Most of the subhealthy people are middle-aged ones who are usually stressed out because of work and family. And some of them are students who are having exams.

If you are subhealthy, it is not difficult for you to become well soon. You should have good living habits. For example, you should get up early and go to bed early. And you should exercise regularly（有规律地）. Exercising can keep you healthy. As for meals, it is better to eat less salt and sugar. Vegetables, fruit and fish are important to your body. You should eat more of them. It is not good to eat too much at one meal, because it may cause unhealthy changes in the digestive tract（消化道）. And at last, a balanced diet is very helpful in staying away from（远离）subhealth.

1.How may you feel if you’re subhealthy?

2.According to the passage, who will probably(可能地) be subhealthy?

3.What should you do if you are subhealthy?

4.If you want to have good living habits,________.

5.What is the main(主要的) idea of the passage（短文）?

A. What is subhealth.

B. How to keep away from subhealth.

C How to keep subhealthy.

D. Why are you subhealthy?

八年级英语阅读理解中等难度题查看答案及解析

—I can’t sleep well at night. I often feel tired.

—You ______ drink some milk before going to bed. It’s good for your sleep.

A. should

B. shouldn’t

C. mustn’t

八年级英语单项填空简单题查看答案及解析

A dog cant speak any words , but it can “talk”. It has feeling just as you do. Sometimes itmay feel angry or afraid . Watch a dog closely, and you can find out how it feels. You can see what it is trying to tell you. When you afraid , you may look down. When a dog is afraid, it mayrun away. When you are angry with other people, you stare at((凝视) them. An angry dog also stares. Sometimes the hair along its back stands up.

Do you feel “guilt” when you do something you shouldn’t do? Dogs can feel guilty. too. Sometimes when I come home, my dog gives me a guilty look. Then I know it did something wrong.

Dogs need love and care. Some dogs are very unhappy when they are alone for a long time. Some dogs even snap(撕咬) if they don’t get enough care.

You may have a dog or you may know a dog. Take care of it well if you want to have fun with it. Take it on walks. Don’t make it do too many things . Always remember, a dog has needs and feelings just as you do. Talk to a dog, and it will talk to you.

1.When a dog is afraid, it may _________.

A. look down　　　　　　　　　　 B. run away　　　　　　　　　　 C. stare

2.The word “guilty” in the second paragraph means _________.

A. happy　　　　　　　　　　　　 B. excited　　　　　　　　　　　 C. sorry

3.When a dog has a guilty look, you know that it ____________.

A. did something wrong

B. was angry with you

C. tried to talk to you.

4.Some dogs are very _______when they are alone for a long time.

A. afraid　　　　　　　　　　　　 B. unlucky　　　　　　　　　　　 C. unhappy

5.Which of the following is TRUE?

A. Make dogs do many things.

B. Leave dogs alone.

C. Try to be friendly to dogs.

八年级英语阅读理解中等难度题查看答案及解析

Why are you always tired, do you know?

First, if we can't 　　　　　 well, we will be tired. But we are often too　　　　　 .We can't finish our homework in the day and　　　　 .we have to do it at night. We go to bed 　　 and we get up early in the morning for school or work. Most people need at least eight 　　　　 　 sleep or more. If we sleep for only five or six hours a night, we will be tired.

Second, when we are ill, we will be tired. But sometimes we don't know we are ill. So if you are always tired, maybe you are not so　　 .You'd better go to see a 　　 .

Third, maybe you eat 　　　 00d, like hamburgers, meat, chocolate or coffee. If you are ill and tired after eating some food, please don't eat it again. You can eat more when you are well.

At last, if the air around you isn't nice and clean, you will feel tired. So please　 　 your windows often or go out fora walk, then you will feel 　 　 　 .

1.A. sleep　　 B.study　　 　 C.drink　　 D. eat

2.A.busy　　 B.free　　 　 C.lazy　　 　 D. angry

3.A. because B.if　　 　　　 C.so　　 　　 D. although

4.A. early　　 B.late　　 　　　 C.quick　　 D. quiet

5.A. days　　 B.months　　 　 C.hours　　 D. minutes

6.A.ill　　 　　 B.nice　　 　　 C.bad　　 　　 D. healthy

7.A.movie　　 B.friend　　 　　 C.teacher　　 D. doctor

8.A.too much B.too many　　 C.much too　 D. many too

9.A. tum　　 B.open　　 　　 C.close　　 　 D.keep

10.A. better　　 B.best　　 　　 C.good　　 D. Nice

八年级英语完形填空简单题查看答案及解析

A dog can't speak any words，but it can "talk"．It has feeling just as you do．Sometimes it may feel angry or afraid．Watch a dog closely，and you can find out how it feels．You can see what it is trying to tell you．When you afraid，you may look down．When a dog is afraid，it may run away．When you are angry with other people，you stare at（（凝视） them．An angry dog also stares．Sometimes the hair along its back stands up．

Do you feel" guilt" when you do something you shouldn't do？Dogs can feel guilty．too．Sometimes when I come home，my dog gives me a guilty look．Then I know he did something wrong．

Dogs need love and care．Some dogs are very unhappy when they are alone for a long time．Some dogs even snap（撕咬） if they don't get enough care．

You may have a dog or you may know a dog．Take care of it well if you want to have fun with it．Take it on walks．Don't make it do too many things．Try not to punish(惩罚) it again and again for doing the same thing. Always remember，a dog has needs and feelings just as you do．Talk to a dog，and it will talk to you．

1.When a dog is afraid, it may ______.

A. look down　　 B. stare　　 C. stand up　　 D. run away

2.When _______, you know that it is angry.

A. a dog runs away from you

B. a dog’s hair stands up

C. a dog moves his tail

D. a dog stares at you

3.The word "guilty" in the reading probably means “______”．

A. excited　　 B. sorry　　 C. scared　　 D. happy

4.If a dog snaps at things , it may feel _____.

A. lonely　　 B. frightened　　 C. sleepy　　 D. excited

5.What does the writer mainly want to tell us?

A. Never leave your dog alone

B. Never punish your dog

C. Try to be kind to dogs

D. Teach your dog to do work for you.

八年级英语阅读单选中等难度题查看答案及解析

- Do you feel tired

--- No, I don’t. If I were tired, I ______a rest.

A．had　 B．would have C．will have　 D．have

八年级英语单项填空中等难度题查看答案及解析