People usually check whether their keys, wallets and phones are with them before going out. But many people in China now have one more important thing to take, a face mask. They hope that it can protect them from polluted air.

Since January 2013, many cities in China have seen a lot of foggy days. In Beijing, only five days in January were free of smog (霧霾). What’s the difference between fog and smog?

According to scientists, fog is made up of tiny (微小的) drops of water and also ice particles (顆粒) during very cold conditions. Smog is dirty air that looks like a mixture of smoke and fog, caused mainly by smoke from cars and factories in cities.

An official for the Ministry of Environmental Protection told Beijing News that PM2.5 pollution is the main problem with air pollution. PM 2.5 refers to pollution with small particles 2.5 micrometers or less in diameter (直徑).

According to the Chinese Academy of Sciences, two main factors that cause PM 2.5 are motor vehicles and the burning of coal.

Poor air has done harm to people’s health. Children and the elderly are more at risk. A report from Beijing Children’s Hospital shows that from December 5 to December 11, 2013, half of the patients in the hospital came for respiratory (呼吸道的) problems.

Air problems and environmental protection have become a care for the whole nation.

Premier Li Keqiang made his last Government Work Report(政府工作報(bào)告) on March 6, 2014. The report said that the government should work hard to prevent pollution and give people a healthy living environment.

It calls on people to make full use of energy and resources (資源) and cut down on energy use.

‘We should give people hope through our actions,’ Li said.

1.The underlined phrase “were free of” means _______________.

A. had some B. had no

C. had many D. had more and more

2.According to the third paragraph, we can know that________________.

A. fog is made up of drops of water with smoke

B. smog is formed (形成) during cold hours

C. smog is a mixture of fog and smoke

D. smoke from cars and factories cause fog

3. Paragraphs 4 and 5 are mainly about ________________.

A. what PM 2.5 is and how to protect ourselves against PM 2.5

B. how to prevent PM 2.5 pollution and how PM 2.5 looks

C. what PM 2.5 is and what causes PM 2.5

D. how seriously PM 2.5 affects us and how to deal with PM 2.5

4.From Li Keqiang’s report, we learn that __________________.

A. the environment has improved a lot since Li was in office

B. many people have breathing problems because of the air pollution

C. the air pollution problem is the government’s task

D. the government will try its best to solve the air pollution problem

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When you are learning English, listening, speaking and writing are important, but reading can also be very helpful. Here are some good reading tips.

◆ Try to read at the right level(水平). 1. If you need to stop every three words to use a dictionary, it is not interesting.

◆ Try to increase the number of your new words. If there are four or five new words on a page, write them down in your notebook. But you don’t have to write them down while you are reading. 2. Then come back when you have finished reading to look them up in a dictionary and write them down in your own vocabulary book. At last try to remember them.

◆ Try to read regularly(定期地). 3. Fifteen minutes every day is better than two hours every Sunday. Fix(固定) a time to read and keep to it. You could read for fifteen minutes when you go to bed, or when you get up or at lunchtime.

◆ 4. Choose a book or a magazine about a subject that you like, because you are going to spend time and money reading it. 5. You can also read newspapers. There are many English newspapers in China. It is easy enough to understand and also there is something interesting in it.

A. So, choose an interesting book.

B. Read something that you can understand.

C. Reading a lot can help you write better.

D. For example, read for a short time once a day.

E. First, try to guess their meanings as you read: mark them with a pen.

F. Try to read what interests you.

G. You should read as much as you can.

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What do you see when look at abstract (抽象) art? Does it look like anything?

Abstract art became popular in the early 20th century. Artists did not want to paint, draw, or sculpt(雕刻) things exactly like they looked. They didn’t want their art to be realistic. They were more interested in basic shapes and colors.

Picasso is probably the most famous of these artists. He painted and drew in many, many styles. Sometimes he used a lot of blue colors (his “blue period”). Later he used more red and pink colors (his “rose period”). Many of his other paintings are called “cubist(立體畫(huà)派)”because they are made of painted squares.

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Kandinsky, another famous artist, used shapes to paint his subjects. His paintings also used strong colors to express feelings.

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There are still many abstract artists around the world. It’s often hard to say what their art is about. They want each person to look at art and find their own meaning in it.

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A. A painting of a house.

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