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閱讀下面的短文．并根據(jù)短文后的要求答題。

Since 1850．the temperature of Earth’s surface has increased about 0.6°C．Scientists predict it may warm much more by the end of this century．Who’s turning up the heat? Well, it seems that we are! Some of this global warming may be natural．However，nearly all scientists now agree that most of it is due to peoples actions．Over the past 150 years, we've added huge amounts of certain gases, especially carbon dioxide（CO2）to the air．These gases can keep heat near Earth's surface，so more carbon dioxide means more heat is kept near Earth's surface．Global warming may change the weather in ways that lead to more severe storms，floods and droughts．

We add carbon dioxide to the air when we burn things, especially fossil fuels．Fossil fuels are energy sources formed from the remains of plants and animals that lived millions of years ago．Coal，oil，and natural gas are all fossil fuels．People in the United States and other countries started bunting large amounts of fossil fuels more than a century ago．The amount d fossil fuels being burned each year has been increasing worldwide．The more we burn，_____________________．

What can we do to help? Nowadays to live a low-carbon life is quite popular in the world． Low-carbon means to reduce the amount of carbon dioxide．Saving energy and reusing are the key words. In fact, even the simplest everyday activities can make our lives low-carbon．

1．What problem can global warming cause?（根據(jù)短文內(nèi)容回答問題）

2．What are fossil fuels?（同上）

3．請將第一段中的劃線句子翻譯成漢語。

4．請根據(jù)第二段內(nèi)容，將最后一個句子補(bǔ)充完整。

The more we bum，_____________________________________________.

5．請寫出日常生活中的一種“低碳”行為（用英語寫一個句子）。

We all need a healthy environment, but we produce waste every day and it does harm to our environment. Though we are young, we can still do something to help. In fact, even the simplest everyday activities can make a real difference to the environment. Here are some ideas for you to live a green life.

Remember these three words: reduce, reuse and recycle.

Reduce means “use less”. Don't waste things. This saves money and reduces pollution and waste going into the environment. Before we buy something new, think if it is really necessary or maybe the old one will be just as good! When we do buy things, choose local products if possible, and try not to buy too many things from abroad.

Reuse means “use again”. Use things for as long as possible. When we buy things, make sure that they last a long time. We should take care of them so that they will last, and we should repair them if we can instead of throwing them away and buying new ones. Don't use a paper cup or a paper bag. It’s better to use a china cup and a lunch box because you can use them again.

Recycle means “change things into something else”. Although it takes energy to change something into something else, it’s better than throwing things away or burning them. Find out what can be recycled in your neighbourhood and take part in recycling programmes. We should also buy products made from recycled materials, such as recycled paper, to help save trees.

Title:  46   to Live a Green Life

完形填空（二）（本題共15小題，滿分30分）
閱讀下面短文，根據(jù)文意，將方框內(nèi)所給的詞或短語的適當(dāng)形式填入相應(yīng)的空白處，使短文的意思完整。（每個詞只能使用一次）（本題共十小題，每小題2分，滿分20分）

We all need a healthy environment, but we produce waste every day and it__【小題1】__ our environment. Though we are young, we can still do something to help. In fact, even the simplest _【小題2】__activities can make a real difference to the environment. Here are some ideas for you.
Reduce means “use less”. Don’t waste things. This __【小題3】__money and reduces pollution and waste going into the environment. Before we buy something new, think ___【小題4】____it is really necessary—or maybe the old one will be just as good! When we do buy things, choose local products if __【小題5】_____ and try not to buy too many things from abroad.
Reuse means “use again”. Use things for as long as possible. When we buy things, make sure that they __【小題6】__ a long time. We should look after them__【小題7】_ they will last and we should repair them if we can instead of  throwing them away and buying new ones. Don’t use a paper cup or a paper bag. It’s better to use a china cup and a lunch box because you can use them __【小題8】__.
Recycle means “change things into something else”. Although it takes ___【小題9】_ to change something into something else, it’s better than throwing things away or burning them. Find out what can be recycled in your_【小題10】__ and take part in recycling programmes. We should also buy products made from recycled materials, such as recycled paper, to help save trees.