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2.Do you know everything that you do leaves a"carbon footprint(碳足迹)"?Foi example,when you travel in a taxi,the car gives off (排放)carbon dioxide (CO2 ) into the air.
Carbon dioxide is a greenhouse gas (温室气体).Greenhouse gases make the Earth become warm.To protect our environment,we need to leave less of a"carbor footprint".
How big is your carbon footprint?To get an idea,take a look at the following numbers.
Living areas
.TV sets and DVD players produce 723kg of CO2 a year.
.If you turn them off when you're not using them,you can cut that number by 108kg.
Laundry room (洗衣房)
Drying clothes in a dryer produces a lot of CO2 a year.
.If you use your dryer five times a week,you produce 185kg of CO2 a year.
.Dry your clothes in the sun instead.
Bathroom
.If you take an eight-minute shower(淋浴)every day,you produce 616kg oi CO2 a year.
.If you only use six minutes to take a shower,you can cut that number by 154kg a year.

51.Greenhouse gases have a bad effect on the earth temperature.T
52.The more of CO2 we produce,the better environment we have.F
53.It's a good idea to make use of sun energy instead of electricity.T
54.An 8-minute shower produces the same amount of CO2 as a 6-minute shower does.F
55.Small things in our daily life can make a lot of difference to the environment.T.

分析 文章大意:这是一篇健康环保类阅读,主要介绍温室气体二氧化碳在空气中的不断排放对地球变暖的影响,作者列举了几个排放二氧化碳的例子,告诫我们在力所能及的情况下,可以尽量减少二氧化碳的排放,保护我们的环境.

解答 51.答案:T.阅读判断题.根据第二段Carbon dioxide is a greenhouse gas (温室气体).Greenhouse gases make the Earth become warm.二氧化碳是一种温室气体,温室气体使地球变得温暖.可知"温室气体对地球温度有不良影响",是正确的.选T.
52.答案:F.阅读判断题.根据第二段To protect our environment,we need to leave less of a"carbor footprint".为了保护我们的环境,我们需要离开少了碳排放.可知"我们生产的二氧化碳越多,我们的环境越好."不正确.选F.
53.答案:T.阅读判断题.根据倒数第三行第四行If you use your dryer five times a week,you produce 185kg of CO2 a year..Dry your clothes in the sun instead.如果你一周使用五次你的吹风机,你一年产生的二氧化碳是185千克.在阳光下晒干你的衣服代替电烘干机.可知"利用太阳能代替电是个好主意."正确.选T.
54.答案:F.阅读判断题.根据最后一句If you only use six minutes to take a shower,you can cut that number by 154kg a year.如果你只用六分钟洗个澡,你就可以每年减少154千克二氧化碳.可知,"8分钟淋浴产生相同二氧化碳的数量和6分钟淋浴一样"不正确.选F.
55.答案:T.阅读判断题.根据最后两行"如果你每天洗八分钟澡,你每年就可以生产616公斤二氧化碳.""如果你只用六分钟洗个澡,你就可以每年减少154千克二氧化碳."可知,"日常生活中的小事会对环境造成很大的影响."是正确的,选T.

点评 阅读题型,要注重句子与句子之间、段落与段落之间逻辑关系以及对篇章的整体理解.根据所给问题选择正确答案.

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