When he was a little child, Andrew had a serious bad habit of sucking(吮吸) his fingers all day long, especially when he had nothing interesting to do: when he was sleeping, when watching TV, when sitting on the sofa and so on. At the beginning, his parents didn’t think it was a bad habit.

Therefore, as time goes by, the boy couldn’t give up his habit. Now, in his twenties, Andrew seems to have developed the bad habit into another one: he always bites his nails(指甲). He cannot stop biting his nails all the time. There’re moments when he even doesn’t know that he is doing it. He realized it was a problem and this worried him a lot. Some of his friends told him about this bad habit, and he stops for a while. But then, if he isn’t busy doing something, he starts biting his nails again!

In fact, there’re a lot of bacteria(细菌) in your nails and they can cause some disease. Also, the nails will become ugly and hard to recover. The worst thing is that this bad habit will bring the mental illness(心理疾病). If people cannot correct it in time, it can affect man’s mental health.

In short, bad habits are very worrying, especially when the person with the habit is in public and cannot stop himself or herself doing it. Still, there must be ways to give up these bad habits and these people should try their best to stop doing them.

1.When Andrew was a little boy, he had a bad habit of ________.

A.biting his fingers B.sucking his fingers

C.sucking his nails D.biting his nails

2.What’s the Chinese meaning of the underlined word “recover” in paragraph 3?

A.覆盖 B.报告 C.发现 D.修复

3.Which is TRUE according to the passage?

A.Some of Andrew’s friends tried to help him stop his bad habit of biting nails.

B.Andrew had a kind of mental illness when he was a little child.

C.Andrew himself wasn’t worried about his habit in his twenties.

D.Andrew’s parents found it was a bad habit at the beginning.

Camels are amazing animals. They aren’t the most beautiful animals in the world. But they are certainly the most useful animals in the hot areas such as North Africa and the Middle East. They usually help people carry things. Now let’s learn more about camels.

There are two kinds of camels on the earth. They are Arabian(阿拉伯的) camels and Asian camels. Arabian camels are dromedaries(单峰骆驼), but Asian camels are bactrians(双峰骆驼). An adult camel is about 2 metres tall and weighs about 500 kilograms. Its legs are long. And its feet are big and soft. Most of the camels can live for about 40 years, but they usually stop working when they are about 25.

Camels live alone in the desert. They aren’t afraid of the hot and cold weather. They mainly eat grass, leaves and bushes. They can walk for more than 600 kilometres without drinking. They only need to do drink water every six or eight days. But when there is water, they can drink up to 90 liters(升). Camels walk slowly. They don’t like running because it’s too hot. But if they need, they can run at 20 kilometres an hour.

Title

Ships of the desert

Age

Most camels can live for about 1. years.

They usually stop 2. at about 25.

3.

They are Arabian camels and 4. camels.

Feature

An 5. camel is about 2 metres tall.

Its legs are long and its 6. are big and soft.

Each weighs about 7. kilograms.

Lifestyle

They live8. in the desert such as North Africa and the Middle East.

They 9. on grass, leaves and bushes.

They only need to drink water every six or eight days.

They can drink up to 90 liters every time.

They walk 10., but they can run at 20 kilometres an hour.

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