2017--2018学年人教版选修八unit 2 cloning grammar课时作业 (10)
2017--2018学年人教版选修八unit 2 cloning grammar课时作业 (10)第5页

答案精析

高考高频单词与短语识记排查

跟踪训练

Ⅰ.1.success 2.brilliantly 3.demanding 4.experiments 5.accessible

Ⅱ.6.B [过去分词短语作状语,相当于When the fruits were first introduced to the mainland market。]

7.C [carry out the experiment完成(进行)试验;表语部分可用a success或successful。]

8.D [考查非谓语动词作状语。句意为:很明显,因为新政策,跟数年前相比,食物浪费自去年开始有大幅的降低。句中将去年以来的食物浪费与前几年相比,主语为food waste,与compare构成被动关系,故选D。]

9.C [government与support之间是被动关系,所以用过去分词。]

10.B [set aside留出,驳回;carry out执行,贯彻;take in接受,理解;get through通过,做完。由题意知是"执行计划",故选B。]

阅读能力与写作能力专练

Ⅰ.

语篇解读 无人驾驶汽车在不久的将来会渗透到城市和乡村,它们的使用会对环境和野生动物有很好的保护作用,但是也可能会产生一些问题。

1.B [段落大意题。根据第二段的内容,尤其是"reduce carbon emissions and health­disturbing air pollution""minimizing traffic jams""reduce energy use""avoid needless acceleration and braking that worsen jams""promise a future of faster journey times with much reduced environmental impact""mean less wildlife roadkill"可知,本段主要介绍的是无人驾驶汽车的优势,故选B。]

2.C [细节理解题。根据第三段最后一句"Coupled with faster journey times,the motivation to live further out of town will increase significantly."及第四段的内容可知,有了无人驾驶汽车,可能会有更多的人选择到房价不高且环境好的郊区或者乡下居住,也就是说无人驾驶汽车可能会引起人们居住地点的变化。故选C。]