2019-2020学年度人教版必修5 Unit 1 Great scientistsPeriod2 Language Points学案

一、重点单词用法精解

1. characteristic n. 特征，特性

The chief characteristic of human being is that they can think. 人类主要的特征是他们会思考。

2. expose vt. 暴露，揭发，曝光（摄影）

Don't expose the baby to the burning sun. 切勿将小孩曝晒。

注：expose sb/sth to...中的to为介词。

3. defeat vt. & n. 击败；战胜；

The army defeated the enemy in the end. 军队最终战胜了敌军。

Tom suffered the defeat in the English examination. 汤姆英语考试失败了。

辨析：win的宾语是game, prize等物（不是人）；beat和defeat的宾语是人；hit"打一下"； beat"（连续地）打"；strike "重击"。

4. cure vt. & n. 治愈，治疗法

There is no known cure for AIDS. 还无治疗艾滋病之法。

It is possible to cure the sickness. 治愈这种疾病还是可能的。

辨析：cure"治愈"，强调结果；treat"治疗"，强调动作过程；说cure sb of sth. 但说treat sb for sth.

5. blame vt. 责备，归咎

The teacher blamed me for my being late for school again. 老师因我又迟到批评了我。

注：blame sb for sth=blame sth on sb.

6. backward adj. & adv. 向后

We turn backward(s) then rightward(s). 我们向后转然后向右转。

搭配：a backward turn 向后转

7. conclude vt. & vi. 结束，总结

The teacher concluded the class by one sentence. 老师以一句话总结了这节课。

二、重要词组句型例析

1.in addition 此外

In addition, the speaker gave us more information about the topic. 另外，这个演讲者就主题给了我一些信息。

注：in addition to(=besides)是短语介词，后接名词、代词和动名词。