49.From the passage we know high concentration of PM 2.5 .
A.can lead to choke
B.can cause heart cancer
C.will damage children’s development
D.will damage people’s organ
答案:D
解析:细节理解题。由最后一段的“...is small enough to breathe deep into the lungs and enter the bloodstream,causing breathing infections,lung cancer and possibly damaging children’s development.”可知D项正确,高浓度的PM 2.5会对人的内脏造成危害。
50.What’s the best title for the passage?
A.Hu Li’s attitudes to Beijing’s haze
B.The damages of Beijing’s haze
C.WHO suggests improving Beijing’s air
D.What caused air pollution in Beijing
答案:B
解析:主旨大意题。文章首段讲雾霾对Hu Li一家的影响;第二段讲严重的雾霾对市民生活造成的具体影响;末段讲述了高浓度的PM 2.5的具体危害。B项涵盖了以上内容。
51.第二节 根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项多余选项。(共5小题;每小题2分,满分10分)
(2017四川高考压轴卷)
—Tom,I’ve just moved to a new house.
— 51
—Thank you,and I’d like to buy a new television set.
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