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答案 :A might be the cause of the children’s sickness? crops didn’t do w ell. were too many insects. visitors brought in diseases. pesticides were overused. 提示 :由倒數(shù)第二段中 “T hey were damaging the crops and spreading diseases.”可知 :蟲(chóng)子損害莊稼并且傳播疾病。 答案 :D new and high technology has been introduced from America,thus great increase in production of the pany. in in from from 提示 :由句意可知此處表示 “ 產(chǎn)生 ,造成 ,帶來(lái) ”, 故 A 項(xiàng)符合題意。C 項(xiàng) “ 方式 ”。D 項(xiàng) “ 態(tài)度 ” 。因?yàn)?thus 是副詞 ,不影響句子結(jié)構(gòu) ,所以空格處只能用現(xiàn)在分詞表示結(jié)果。 “They” 指上句中的 “insects” 故答案為 B項(xiàng)。再由第三段倒數(shù)第二句可知本題答案為 A項(xiàng)。 答案 :B ’ve tried very hard to improve my by no means with my progress. teacher is not satisfied the teacher not satisfied teacher is satisfied the teacher satisfied 提示 :by no means 位于句首時(shí) ,句子需用倒裝結(jié)構(gòu) ,B項(xiàng)因?yàn)榧恿?not,所以意義不對(duì)。B 項(xiàng) “ 進(jìn)入 ,通路