题目

根据句意及所给单词的首字母或所给汉语注释，在下列句子的横线上写出各单词的完全形式。（每空只填一词） 1．Please have a dinner with us at six if it is c_____________ to you. 2．Stephen Hawking d__________ all his life to studying physics. 3．His life would be in danger if he were not sent to hospital i_____________. 4．With the development of modern agriculture and i________, more and more waste is produced. 5．There was a surprised e____________ on his face. 6．I’m into reading __________(冒险) stories. 7．My uncle is the manager of his 很多动物靠着自身的独特本领改变摩擦，下列动物改变摩擦方法所起的作用与其它不同的是（    ） A.鲫鱼体表有黏滑的液体            B.哺乳动物骨关节腔内的滑液 C.蚯引体表的刚毛                    D.海豹光滑的表皮