【题目】Tuvalu, a tiny country in the Pacific Ocean, has asked for help as it fears it will be swallowed up by the sea. Storms and huge waves are a constant threat and none of Tuvalu’s nine little islands is more than five meters above sea level. Salt water is already entering the country’s drinking water supply, as well as damaging plants that produce fruit and vegetable. 1

2 Venice(威尼斯), a historic city in Italy best known for its canals, has sunk about 24 cm over the past 100 years. Experts say that it will have sunk another 20 cm-50 cm by 2050. A century ago, St. Mark’s Square, the lowest point in the city, was flooded about nine times a year. Nowadays, it happens more than 100 times. While Venice is slowly sinking into the mud on which it stands, Tuvalu’s rising sea level is caused by global warming.

The average global temperature has increased by almost 0.5 centigrade degree over the past century; scientists expect it to rise by extra 1-3 degrees over the next 100 years.

Warmer weather makes glaciers(冰川)melt, adding more water to the ocean. The warmer temperatures also make water expand, so it takes up more space, causing the sea level to rise. The sea level has risen about 10 cm-25 cm in the last 100 years.

3

Through burning coal, oil and gas, people have been increasing the greenhouse gases in the atmosphere, such as CO2. This adds to the power of the greenhouse effect, making the planet even warmer.

Many scientists believe that, if the warming is not stopped, there will be huge climate change. 4

5 , the sea will swallow up millions of homes and the world will be flooded with "climate refugees" looking for somewhere to live.

A. The main cause of global warming is human pollution.

B. Should this come true

C. Without urgent help, the country’s days are numbered.

D. But Tuvalu is not the first place to face sinking into the sea.

E. The sea level could rise by one meter this century.

F. People face a lot of pollution.

G. Much has been done about our planet.

【题目】The cure for sleeping problems can often be found in your daily routine. Your day-to-day lifestyle choices greatly influence the quality of your nightly rest. The following tips will help you to get a better sleep.

Set a regular bedtime. 【1】 Choose a time when you normally feel tired to go to bed so that you dont toss and turn for hours before falling asleep. Try not to break this routine at the weekend, when you may want to stay up late. If you want to change your bedtime, help your body adjust (适应) by making the change gradually.

2 If you cant avoid the noise of barking dogs, loud neighbors, city traffic, or other people in your household, try masking (掩盖) it with a fan, recordings of smoothing (舒缓的) sounds, or white noise. You can buy a special sound machine or produce your own white noise by setting your radio between stations. 3 .

Keep your room cool. 4 Most people sleep best in a slightly cool room (around 65 or 18). A bedroom that is too hot or cold is not good for your sleep.

5 You should have enough room to sleep comfortably. If you often wake up with a sore back or an aching neck, you may need to buy a new mattress (床垫) or a different pillow.

A. Try to keep the noise down.

B. Earplugs (耳塞) may also help.

C. Make sure your bed is comfortable.

D. Go to bed at the same time every night.

E. Spend more time outside in the daytime.

F. The temperature of your bedroom also affects your sleep.

G. If you are getting enough sleep, you should wake up naturally without an alarm.

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