摘要: in the open air:露天

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阅读下列短文,根据短文中的信息完成文后表格。在答题卡标有题号的横线上,写出空缺处所填单词的正确形式。(每空一词)

The haze(雾霾)season is back. How much do you know about haze? Haze can also be called “Smog”. The word "smog" is from the words “smoke” and “fog”, it first appeared in the early 20th century, It is a kind of air pollution(污染)caused(导致)mostly by cars and factories.

Smog will do great harm(伤害)to your health, especially lungs(肺).It can make you cough and cause skin and eye problems. It seems that we can do nothing to stop it, but only wait until the wind blows all the smog away. However, there are some easy ways to prevent it hurting you. Here are some of them.

1. Don’t do exercise in the open.

Exercising in the open makes you breathe(呼吸)deeply, and you will take in the particles(颗粒物)deep into your lungs.

2. Stay indoors and keep the air clean.

If you can, just stay in your room and keep the doors and windows closed. Remember to air your room twice a day, you can open the window at noon or at night for half an hour.

3. Wear a mask.

Paper and cotton masks can not help you in the haze weather. Some special masks, such as N95 masks, can keep you from breathing in the particles in the air.

4. Change your diet.

Scientists find that vitamin A, C and E can greatly help protect your eyes, nose and lungs.

So eat more green vegetables and fresh fruit everyday. What’s more, do not eat food with too much fat(脂肪),it’s bad for your lungs.

The haze weather

What is haze?

·It 1. smog, a kind of smoky and 2. weather.

·It is a kind pollution caused by cars and 3. .

What is the harm?

·It is 4. for our health.

5. to prevent the haze?

·Don’t 6. outside.

·Stay indoors as 7. as possible with the doors and windows closed.

·Remember to open the windows for a while to keep the 8. clean.

· 9. a mask to prevent taking in the particles.

·Change your diet. Vitamins can make you healthy. So, please eat more vegetables and fruit and 10. meat.

 

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Animals grow up in different ways. They have lots of lessons to learn.
Some animals are born helpless but their mothers protect them. A newborn kangaroo is the size of a bee. She stays in her mother’s safe pouch. She doesn’t open her eyes for at least five months. A newborn monkey cannot walk. He is carried by his mother. 
Other baby animals can walk soon after they’re born. They learn to run with their mother when danger is near. A baby zebra(斑马)can run an hour after she is born.
Some baby animals are born in a place that is safe. Other baby animals are born in the open. Baby wolves are born in large holes. A baby elephant is born on open, grassy land. Other elephants make a circle(圈)to protect her.  
Animals that drink their mothers’ milk are called mammals. A mother bear’s milk is fatty and rich. Baby bears need lots of fat to keep warm in winter. They have milk for six months. Baby zebras drink milk for six months or more! As baby animals grow they need solid(固体的)food. Baby lions eat what their mother can catch.
【小题1】Which baby animals don’t open their eyes for at least five months?

A.Lions.B.Zebras.C.Kangaroos.D.Elephants.
【小题2】What can’t a baby zebra do an hour after she is born?
A.Drink milk.B.Walk by herself.
C.Run with her mother.D.Make a circle to protect herself.
【小题3】Which of the following is TRUE according to the passage?
A.Baby wolves are born in the open.
B.Newborn lions only eat solid food.
C.Newborn monkeys can walk but can’t jump.
D.Baby bears need lots of fat to keep warm in winter.

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Happiness is for everyone. You don’t need to care about those people who have beautiful houses with large gardens and swimming pools or those who have nice cars and a lot of money and so on. Why? Because those who have big houses may often feel lonely and those who have cars may want to walk on the country roads at their free time.
In fact, happiness is always around you if you put your heart into it. When you are in trouble at school, your friends will help you; when you study hard at your lessons, your parents are always taking good care of your life and your health; when you get success, your friends will say congratulations to you; when you do something wrong, people around you will help you to correct it. And when you do something good to others, you will feel happy, too. All these are your happiness. If you notice a bit of them, you can see that happiness is always around you.
Happiness is not the same as money. It is a feeling of your heart. When you are poor, you can also say you are very happy, because you have something else that can’t be bought with money. When you meet with difficulties, you can say loudly you are very happy, because you have more chances to challenge(向…挑战)yourself. So you can not always say you are poor and you have bad luck. As the saying goes, life is like a revolving(旋转)door. When it closes, it also opens. If you take every chance you get, you can be a happy and lucky person.
【小题1】When you fall down in a PE class, both your teacher and your classmates will_________.

A.laugh at youB.play jokes on you
C.quarrel with you D.help you up
【小题2】What will your friends say to you when you make great progress?
A.Oh, so do I.B.Congratulations.
C.Good luck.D.It’s just so-so.
【小题3】Which idea is NOT right according to the passage?
A.People who have cars would never like to walk in the open air.
B.You can get help from others when you make mistakes.
C.You can still be a happy person even if you have little money.
D.Happiness is always around you though difficulties come towards you.
【小题4】Which of the following is this passage about?
A.Bad luck.B.Good luck.C.Happiness.D.Life.

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Have you ever heard an echo of your voice?
An echo is a reflected(反射)sound. Stand in a very large, empty hall with nothing on the walls. Then shout. The sounds you make will hit the walls and come back to you. The walls reflect the sounds. These reflected sounds are called “echoes”.
We can use reflected sound to make sound travel farther. Hold a watch about fifty centimeters from your ear. You cannot hear it. The sound of the watch travels a short way in all directions. It does not travel as far as your ear. You can make it travel to your ear by using a roll of cardboard(纸板筒).
Make the roll of cardboard about fifty centimeters long. Put one end over your ear and hold the watch at the other. Now you can hear the watch because the sound has not gone in all directions. It is reflected down the roll to your ear.
A megaphone(喇叭筒)works in the same way. It makes sound travel farther. It reflects the sound into a beam which can travel a long way. In the ship, the sailor uses the megaphone to make his voice travel. Without the megaphone, his voice cannot travel far.
We use reflected sound in many ways. We use it to measure the depth of the sea, for example. Among the animals, bats and whales use reflected sound to tell them where they are and what things are near them.
【小题1】What is called “echo”?

A.Very loud voices.
B.Very loud voices that are made by man.
C.Very loud voices that are made by animals.
D.The sound that is made by man or animals comes back from some place.
【小题2】We can hear our echoes if we     .
A.shout in a small room
B.shout in a large house full of things
C.shout in narrow valleys(山谷)
D.shout in the open air
【小题3】Which is the right order of hearing our echo in a very large, empty hall?
a. We hear the reflected sound
b. The sound returns to us
c. The sound hits the walls
d. We make a sound
A.c, b, a, dB.c, a, b, dC.d, c, b, aD.d, b, c, a
【小题4】From the text we learn that __________ .
A.reflected sound is useful only to blind people
B.people haven’t made use of reflected sound yet
C.bats use reflected sound to fly and get food
D.whales don’t use reflected sound as they live in the sea
【小题5】If you haven’t got a megaphone, ____ will help you to make your voice travel farther.
A.a long piece of woodB.a roll of cardboard
C.a thin threadD.a long piece of silk

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