Unit 13 Were trying to save the earth! 第七课时 Self Check 一、词汇运用。 A)根据句意及汉语提示填空。 1 Mr.Wang rides to work every day because he cant _(买得起 ) a car. 2 We collect the waste paper to _(回收利用 ) it. 3 The city has developed into a center of _(工业 ) 4 Dont use _(塑料的 ) bags. 5 There are lots of _(优点 ) of riding bikes. afford recycle industry plastic advantages B)根据句意,用括号中所给单词的适当形式填空。 6 My grandfather lives in a _(wood) house. 7 You shouldnt drop _ (litter) everywhere in public places. 8 The story tells us abo