随堂演练
及时体验 巩固提升
Ⅰ.单句语法填空(不多于3个单词)
1．— Bob, are you free at the moment? I have to ask you some questions.
— Yes, go ________.
答案与解析 ahead go ahead可用于鼓励对方继续说下去，意为“可以；往下说吧。”
2．The majority of doctors believe smoking is ________ (harm) to health.
答案与解析 harmful 句意：大多数医生认为吸烟有害健康。harmful“有害的”。
3．At times this balance of nature ________ (disturb), resulting in a number of possibly unforeseen effects.
答案与解析 is disturbed 句意：有时自然界的平衡被打破，引起很多可能无法预见的后果。
4．________ amusing the story is, I have to put it away and focus my attention on study this week.
答案与解析 However/No matter how However amusing＝No matter how amusing。注意： however/no matter how引导让步状语从句时，常把表语或状语提前构成倒装。
