题目内容

Polluted airborne particles(大气悬浮颗粒) kill 7 million people a year, reports the World Health Organization.

That news may not come as a surprise to anyone who has seen images of chimneys in Beijing, Delhi or Mexico. But those factories-or even the jammed roadways of modern cities-are not the biggest killer. Each year, some 4.3 million people die earlier than they should because of polluted air inside their homes, says the WHO.

What's causing the air inside people's homes to be so poisonous that it kills around 11,000 people a day? Stoves. “Having an open fire in your kitchen is like burning 400 cigarettes an hour.” says Kirk Smith, a professor at the University of California at Berkeley, whose research suggests that household air pollution from cooking killed between 3.5 million and 4 million people in 2013.

Not all stoves cause this kind of harm. The ones Smith's talking about are those that the 3 billion people in the developing world use for heat and cooking, which burn solid fuels such as wood, coal, or crop waste instead of gas. The smoke from those fires produces harmful fine particles and carbon monoxide into homes. Poor ventilation then prevents that smoke from escaping, raising fine particle levels 100 times higher than the limits that the WHO considers acceptable.

Breathing this air day in day out eventually causes a lot of diseases: more than a third of the 4.3 million die of a stroke, while a quarter die of heart disease. And around one-third of annual lung disease deaths worldwide are due to waste from coal stoves.

Exposure tends to be extremely harmful for the people who spend the most time around the fire-usually women and young children. In fact, the WHO reports that household air pollution almost doubles the risk for childhood lung disease.

1.According to Kirk Smith's research,________.

A. factories are the biggest killer worldwide nowadays

B. burning 400 cigarettes an hour is extremely dangerous

C. household air pollution from cooking is surprisingly harmful

D. some 4.3 million people die earlier each year than they should

2.What should be the deadly killer in a household kitchen?

A. Solid fuels. B. Coal stoves.

C. Poor gas. D. Cooking smoke.

3. The underlined word “ventilation” in Paragraph 4 probably means ________.

A. airing B. cooking C. burning D. cooling

4.The author intends to tell people ________.

A. how to avoid polluted air in their homes

B. to stop cooking in the household kitchen

C. to guard against household pollution from cooking

D. how to prevent childhood lung diseases in household

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A Good Night's Steep

Sleep plays a vital role in good health and well-being throughout your life.

While you're sleeping, your brain is forming new pathways to help you learn and remember information. Although we all know the importance of getting a good night's sleep, not all of us know the best way of getting it. A sleep expert, Phil Atherton, gave some top tips for getting the most out of the night, which will leave you ready for action in the morning.

According to Phil Atherton, not eating a large meal before bedtime is important for getting a good night's sleep. The time difference between eating and sleeping should be at least three hours. So you'd better avoid eating any food three hours before bed, as it will lower your blood sugar during sleep and help minimize damage from too much sugar floating around.

It's also important to find ways to prepare your body for sleep. You can follow a routine like trying not to expose yourself to too much artificial light within 1 hour before bed, as your brain uses light to help set internal "body clock". Although it might seem unnatural to schedule your sleep, the purpose is to send a signal to your body and mind that it's time to sleep.

Another way to prepare your body for sleep is to get into a relaxed state by taking a bath or listening to soft music. Both of them will help to take the mind off the daytime pressures.

Having a suitable bed, especially a suitable mattress (床垫), is necessary for a good night's sleep. Sleep is a personalized activity, and we all adopt different sleeping positions. Finding the mattress that suits you will reduce back pains that can result from a poor sleeping position. The bed should be four to six inches longer than its tallest user, allowing for space to move

around.

The recent research is pretty clear that a good night's sleep in a major component of good health. Since the start of the 21st century, studies have linked a lack of sleep to many diseases, such as diabetes and obesity. Taking action now will lead to long-term benefits for you and those around you.

1.What does the author intend to tell us in the passage?

A. When to start a sound sleep.

B. How to get a good night's sleep.

C. What to do with sleep problems

D. Why to form a good habit of sleeping.

2. According to the author, before going to sleep, you'd better __________.

A. free yourself from tension

B. check your blood sugar

C. relieve your pain in the back

D. record your biological clock

3. What does the underlined word "it" in Paragraph 2 refer to?

A. Not eating food. B. Taking a meal.

C. Not sleeping well. D. Having a good sleep.

4. Which of the following shows the organization of the passage?

CP: Central Point P: Point Sp: Sub-point (次要点) C: Conclusion

完形填空

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。

Learning is a continuous process of life. We all learn from ___________ thing in life. One of the things that ___________ me recently is what I learned from turtles(龟).

Turtles could teach a vast number of people a lot about reaching goals. ___________ , have you ever watched turtles making their way to a stream? Turtles ___________ where they are going. In other words, they have set a goal. Many people ___________ go through life with no specific goals in mind. They seem to weave(穿行) back and forth because their life direction seems to ___________ in relation to whatever influences them at the time.

Turtles, on the other hand, have a set goal in mind ___________observed by taking the time to watch them. Turtles have only one ___________ . No matter how long it takes them, they will do everything they can to ___________ their objective.

Sure, turtles may be ___________ . But they keep going. Each step they take, no matter how small, keeps them ___________ to their destination. They never ___________ a step or break into a run. The reason is that turtles have a better ___________ of the necessity of taking small steps over and over again to reach final victory.

The ___________ thing about turtles is that they have hard shells. The significance of this shell is to help ___________ themselves from anything that may attack them. And, as turtles taught me, we also need to develop a hard shell ___________ those that would want us to fail.

___________ , turtles told me that the greatest characteristic to ___________ in reaching a goal is perseverance(坚持不懈). No matter what the obstacle is, there is a(n) ___________ around it. No matter how many times one is ___________ by negativity, there is strength in belief.

1.A. unusual B. important C. practical D. different

2.A. impressed B. worried C. disturbed D. excited

3.A. As a consequence B. In other words C. For example D. Above all

4.A. accept B. know C. forget D. search

5.A. unfortunately B. unhappily C. surprisingly D. eventually

6.A. grow B. expand C. follow D. change

7.A. luckily B. hardly C. easily D. deeply

8.A. instruction B. direction C. guide D. position

9.A. reach B. match C. receive D. desert

10.A. smart B. sweet C. shy D. slow

11.A. higher B. closer C. farther D. straighter

12.A. reject B. move C. skip D. meet

13.A. sense B. smell C. taste D. trick

14.A. rest B. last C. extra D. other

15.A. remove B. protect C. prevent D. separate

16.A. beyond B. through C. against D. among

17.A. Gradually B. Finally C. Clearly D. Mostly

18.A. possess B. inform C. include D. apply

19.A. end B. tip C. path D. entrance

20.A. praised B. blamed C. inspires D. stopped

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