课时跟踪检测 选修六 Unit 4 Global warming
(计时：35分钟)
Ⅰ.词汇知识
1．(2014·文德书院)Chemical pollution will bring about a threat to agriculture and food chain, and ________ to human health.
A. frequently B. significantly
C. steadily D. consequently
答案与解析 D 句意：化学污染会给农业和食品链带来威胁，从而对人类健康带来威胁。consequently“从而；结果”，符合句意。frequently“频繁地”； significantly“意味深长地”； steadily“稳定地”。
2．Dora has some shortcomings but ________ she seems like an intelligent, likable person.
A. on the contrary B. up to now
C. in return for D. on the whole
答案与解析 D 句意：多拉有一些缺点，但是从整体上来看，她似乎是个既聪明又讨人喜欢的人。on the contrary“相反”； up to now“到目前为止”； in return for“作为对……的回报”； on the whole“从整体上看；总的来说”。
3．— Do you think that the price of house will keep ________ the years to
