2.Do you know everything that you do leaves a"carbon footprint(碳足跡)"?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 (溫室氣體).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:這是一篇健康環(huán)保類閱讀,主要介紹溫室氣體二氧化碳在空氣中的不斷排放對地球變暖的影響,作者列舉了幾個排放二氧化碳的例子,告誡我們在力所能及的情況下,可以盡量減少二氧化碳的排放,保護(hù)我們的環(huán)境.

解答 51.答案:T.閱讀判斷題.根據(jù)第二段Carbon dioxide is a greenhouse gas (溫室氣體).Greenhouse gases make the Earth become warm.二氧化碳是一種溫室氣體,溫室氣體使地球變得溫暖.可知"溫室氣體對地球溫度有不良影響",是正確的.選T.
52.答案:F.閱讀判斷題.根據(jù)第二段To protect our environment,we need to leave less of a"carbor footprint".為了保護(hù)我們的環(huán)境,我們需要離開少了碳排放.可知"我們生產(chǎn)的二氧化碳越多,我們的環(huán)境越好."不正確.選F.
53.答案:T.閱讀判斷題.根據(jù)倒數(shù)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風(fēng)機(jī),你一年產(chǎn)生的二氧化碳是185千克.在陽光下曬干你的衣服代替電烘干機(jī).可知"利用太陽能代替電是個好主意."正確.選T.
54.答案:F.閱讀判斷題.根據(jù)最后一句If you only use six minutes to take a shower,you can cut that number by 154kg a year.如果你只用六分鐘洗個澡,你就可以每年減少154千克二氧化碳.可知,"8分鐘淋浴產(chǎn)生相同二氧化碳的數(shù)量和6分鐘淋浴一樣"不正確.選F.
55.答案:T.閱讀判斷題.根據(jù)最后兩行"如果你每天洗八分鐘澡,你每年就可以生產(chǎn)616公斤二氧化碳.""如果你只用六分鐘洗個澡,你就可以每年減少154千克二氧化碳."可知,"日常生活中的小事會對環(huán)境造成很大的影響."是正確的,選T.

點評 閱讀題型,要注重句子與句子之間、段落與段落之間邏輯關(guān)系以及對篇章的整體理解.根據(jù)所給問題選擇正確答案.

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