“低碳生活，从我做起!”请仔细阅读下列材料，找出以下五种“低碳”行为产生的直接效应。

1．Henry often recycles water to clean his room and water the flowers．

2．Daphne always turns off the lights and the computer as soon as she leaves her office．

3．Mr．White sometimes goes to work by bus or on foot instead of driving his car．

4．Li Lei usually uses QQ or e－mail to communicate with his friends instead of paper letters．________

5．Miss Zhang never wears fur(皮草)clothes and she decides to eat less meat．

任务型阅读

　　Since 1850．the temperature of Earth's surface has increased about 0．6℃．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．

根据短文内容，回答下列问题。

1．What problem can global warming cause? ________

2．What are fossil fuels? ________

3．请将第一段中的画线句子翻译成汉语。 ________

4．请根据第二段内容，将最后一个句子补充完整。

The more we bum，________．

5．请写出日常生活中的一种“低碳”行为(用英语写一个句子)。________

任务型完形填空

用方框中所给单词或短语的适当形式填空，使短文通顺、正确连贯，每个单词或短语限用一次。

　　There are many ways to save the environment if you would like．In this passage, you can find some ways．

　　Plant more trees．Choose a right 　　1　　 near your house or workplace．　　2　　 there's any rule stopping you growing trees in that area, go ahead and grow trees．Plant a tree every month and 　　3　　 your friends and classmates to join you．Have more and more trees 　　4　　 and there will come a day when you have green land thanks to your hard work．

　　Walk more and drive less．Choose to walk 　　5　　 drive your car．Walk or ride a bicycle to work if it's not very far．Not only cycling but walking is good exercise．And each time you avoid using your car, you’re doing something 　　6　　 to cut down air pollution．You are saving fuel, saving money and keeping fit as well．

　　Save water．Water is very important for living things．It's 　　7　　 who use and pollute it．The simplest way to save water is turning 　　8　　 water taps after use．When you visit a beach, make sure that you don't throw waste around．Do not pollute rivers 　　9　　 dropping garbage or other waste．Water is so precious, so we 　　10　　 waste or pollute it．