7. I expect you understand all those， except perhaps “proximity”。 动词expect通常有如下用法：
1）except + 宾语（名词或代词）

I am expecting a letter. （我在等信。）

The teacher is expecting you. （老师在等你。）

2） expect +（宾语）+ 动词不定式

I expect to be back next week. （我预计下周回来。）

I didn't expect him to come so early. （我没料到他会来得这么早。）

3） expect + that从句

He didn't expect that the work could be so difficult. （他没料到这工作会如此艰难。）

They expected that the war would end soon.（他们期望战争早日结束。）

在本课文的句子中，except后面跟的是省略了that的宾语从句。

8. A person who holds a hand over his mouth when he is talking is signaling that he is lacking in confidence.

在第十六单元中我们学过lack这个词。lack可以用作动词或名词，lacking用作形容词。lack和lacking用法如下：

1）lack用作名词：（for） lack of （因）缺乏

He showed a complete lack of confidence. （他显得毫无信心。）

The case was dismissed for lack of evidence. （因缺乏证据，那个案子被驳回了。）

2）lack用作及物动词：lack sth

Your article lacks concert example. （你的文章缺少具体的例子。）

She lacks patience in dealing with children. （与孩子打交道她缺少耐心。）

3）lacking用作形容词：be lacking in sth.

Philip was not lacking in ability. （菲力普并不缺少能力。）

His reception of us was lacking in warmth.（他对我们的接待缺少热情。）

9. These are both pretty obvious signals.

通常pretty用作形容词，而在本句中pretty作副词用。如：

1）She was happy to live in the pretty valley. （住在美丽的山谷里她很开心。）

2）The pretty little girl brought much delight to her family. （那个漂亮的小姑娘给全家带来了莫大的快乐。）

3）I will be back pretty soon. （我不久就回来。）

4）She felt pretty tired. （她感到相当累。）

5）I am pretty certain the performance will be a success. （我相当有把握演出会成功。）

10. In fact， non-verbal communication car， as the saying goes， speak volumes.

as the saying goes意思是“正如成语所说，俗话说”。在本句中，as the saying goes做插入语。

speak volumes意思是“很有意义；含义很深；充分说明”。如：

1）The one photograph speaks volumes. （这一张照片就很有意义。）

2）The look on her face spoke volumes.她的脸色意味深长。）

3）Her silence spoke volumes for her attitude. （她的沉默清楚地表明了她的态度。）

本课主要词组

1. means of

2. involve sth/doing sth

3. refer to

4. agree with

5. communicate sth. to sb.

6. tie to / be tied to

7. in order to

8. be categorized into

9. be common to

10. fiddle with

11. be lacking in

12. start doing sth.

13. and so on

14. in fact

15. give off

16. look away

17. in embarrassment

18. for short

19. as the saying goes

20. speak volumes

Text B    body talk

短语表达

1. talk a liking to

He couldn't understand why the boss suddenly took a liking to him.

2. chances are that…

Chances are that he will not be able to get the job.