問題詳情
31~33 These days, people are worried about the heat on the Earth. According to some scientists, the Earth isgetting hot because of greenhouse gases. They are worried about the heat because it might lead to unusualtyphoons and 31. a lot of people. Now, many countries have made laws. The factories can no longermake too much greenhouse gases. However, some other scientists see it 32. . They think the change of weather is natural. TheEarth experienced warming and cooling many times in the past. In fact, the weather before was much 33.than it is today. No matter who is right, global warming is still a serious matter for all of us to care about.
global 全球的
greenhouse gas 溫室氣體
【題組】31.( )
(A) kill
(B) killed
(C) killing
(D) be killed
參考答案
答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)