The shock of the recent earthquake in Pakistan has brought another shock: the rise of a small, mysterious island, coming out from the water.

In the aftershock of the earthquake, people living in Gawadar, near the southwest coast, began to see a strange sight. They looked out into the Arabian Sea and saw a mountain-like shape coming out of the water. “I could see this gray, dome-shaped (穹顶形状的) body in the distance, like a giant whale,” Bahram Baloch, a local journalist, told the BBC. “Hundreds of people had gathered to watch it in disbelief (怀疑).”

So what happened? The earthquake measured 7.7 in magnitude (地震级数). The force was so strong that it moved the sea floor, releasing gas. This gas pushed the seabed, mostly rock and sand, upward and out of the water. This is how mud volcanoes (泥火山) are formed. The island that measures about 20 meters high, 30 meters long and 90 meters wide is actually the tip of the mud volcano.

Is it safe? Although people have visited this new island, scientists have found dangerous gas coming from the newly formed island. “Our team found bubbles rising from the surface of the island, which caught fire when a match was lit,” said Mohammad Danish, a scientist, to Universe Today.

These mud volcanoes are not rare. But it’s striking because this one has popped up in a populated (有人居住的) area, and not far out in the sea. However, it’s not expected to last very long. Most of these mud volcanoes are swept back under the sea within one year.

1.After the earthquake, what did people see in the sea?

A. a strange light B. a blue whale

C. a mysterious island D. a mountain

2.Which of the following can be filled in the box to show how mud volcanoes are formed?

A. Dangerous gas was released.

B. Rock and sand were mixed.

C. The storm blew up the sea.

D. Huge waves appeared.

3.According to Mohammad Danish, _______.

A. it is safe to visit mud volcanoes

B. it is a bad time to do research

C. gas from the newly formed island was dangerous

D. some places on the island were on fire

4.From the last paragraph, we learn that mud volcanoes _________.

A. are good places to visit

B. often appear far out in the sea

C. exist for years

D. will not be swept away by waves

Smoking in indoor public places including public working places, public transport vehicles and some other special outdoor working places has been banned(禁止)in China since January 2011.Let’s look at the following advantages of banning smoking.

First, banning smoking will not only help in saving smokers from health problems and diseases, but will also be good for passive(被动)smokers. When the smoker is smoking in a restaurant, the people around him are sure to breathe in the smoke and suffer from the diseases an active smoker gets. If smoking is banned, spread of these diseases can be controlled.

Next, banning smoking will put stress on smokers to give up. Since a smoker is prevented from smoking, he will learn how to live without smoking for long hours. When a smoker doesn’t smell or see anybody around him smoking, it might reduce his wish to smoke too. As a result, people have to give up smoking.

Smoking in public places influences non-smokers to start smoking, especially adolescents. When teens see people around them smoking, they will follow them easily. Thus the number of teen smokers will increase. Also asthma(哮喘)and other problems are often seen in children living around smokers. So if it is banned, these places will become safe for children and teenagers.

Looking from the economic point of view, smoking should be banned to increase work productivity(生产率).Employees(雇员)who smoke usually take breaks to smoke while working. So the number of hours they put in their work is smaller.

If you see from the environment point of view, smoking should be banned. Smoking causes air pollution. If it is banned, it will help keep the environment from getting worse.

1.________doesn’t belong to a non-smoking place.

A.A field B.A hospital

C.A library D.A restaurant

2. The second paragraph mainly wants to tell us ______.

A. banning smoking is good for restaurants

B. banning smoking is good for non-smokers

C. banning smoking is good for spread of diseases

D. banning smoking is good for active smokers and passive smokers

3.How many advantages of banning smoking are mentioned in this passage?

A. Two. B. Four. C. Five. D. Six.

4.According to the text, the underlined word “adolescents” means ______.

A. men B. women C. adults D. teenagers

5.Which of the following statements in NOT true?

A. If smoking is banned, work productivity will increase.

B. If smoking is banned, the number of teen smokers will be larger.

C. If smoking is banned, it will make the environment become better.

D. If smoking is banned, smokers will learn how to live without smoking.

 0  105051  105059  105065  105069  105075  105077  105081  105087  105089  105095  105101  105105  105107  105111  105117  105119  105125  105129  105131  105135  105137  105141  105143  105145  105146  105147  105149  105150  105151  105153  105155  105159  105161  105165  105167  105171  105177  105179  105185  105189  105191  105195  105201  105207  105209  105215  105219  105221  105227  105231  105237  105245  159627 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网