高中英语 人教版 必修4 Unit 4 Body language Part6 Grammar 课件（23张）

课件23张PPT。
二、 现在分词的形式变化 现在分词一般式表示与谓语同时发生的动作;完成式表示发生在谓语动词之前的动作。
eg: Hearing the bell, the students began to enter the classroom. 听见铃声, 学生们开始走进教室。(听见和进入两个动作同时发生)。
Having done the work, he went home. 完成了工作, 他就回家了。(完成工作发成在回家之前); 当句子的主语是分词动作的承受者时, 分词用被动语态(being done)。 如果要强调分词的动作先于谓语动作，就用分词完成式的被动形式(having been done)。
eg: The question being discussed is of great importance. 正在被讨论的问题是很重要的。
Having been criticized by the teacher，Li Ming gave up smoking. 被老师批评之后，李明戒了烟。三、现在分词考点直击
下面结合高考试题谈谈现在分词的考查重点：
[原题再现]
The bell ____the end of the period
rang, _____our heated discussion.
indicating; interrupting
B. indicated; interrupting
C. indicating; interrupted
D. indicated; interrupted答案 为A。本句的谓语动词是rang, 两个空白处都应使用非谓语动词, 逻辑主语是the bell, 因此应使用表示主动意义的现在分词。第一空是分词短语作定语, 第二空是分词短语作状语。
如果两个动作有先后, 一般不能用现在分词的完成式作定语, 而应使用定语从句。如:
The old man criticized the boy who had broken the window.(不宜用having broken the window)2. Though____ money, his parents managed to send him to university.
A. lacked B. lacking of
C. lacking D. lacked in
答案为C。lack与句子的主语构成逻辑上的主谓关系, 选用表示主动意义的现在分词，lack是及物动词, 后接宾语。1)当句子的主语不是分词的逻辑主语时, 分词应有自己的逻辑主语,这就是分词的独立主格结构。例如:
Time permitting, you can pay a visit to some places of interest in Hangzhou.如果时间允许的话, 你们可以参观一下杭州的一些名胜古迹。3.Finding her car stolen,____ .
A. a policeman was asked to help
B. the area was searching thoroughly
C. it was looked for everywhere
D. she hurried to a policeman for help
答案为D。根据现在分词短语finding her car stolen, 可以断定其逻辑主语是she。一、句型转换
1.A. They are visitors who come from several countries.
B. They are visitors_________________________ .
2.A. Three days later I received a letter which offered me the job.
B. Three days later I received a letter ________
________.coming from several countries3.A. When I was walking in the street, I came across an old friend of mine.
B.____________________ ,I came across an old friend of mine.
4.A. As he was ill, he didn’t go to school.)
B._________ , he didn’t go to school.)Walking in the streetBeing ill5.A. He sat on the sofa, and watched TV.
B. He sat on the sofa, ______________.
6.A. If you use your head, you will find a way.
B.________________, you will find a way.Using your headwatching TV二、单句填空
It rained heavily in the south, _______
(cause) serious flooding in several provinces.
2. The news shocked the public,________
(lead) to great concern about students
safety at school.causingleading3. The traffic rule says young children under the age of four and________ (weigh) less than 40 pounds must be in a child safety seat.
4. I had great difficulty________ (find) the suitable food on the menu in that restaurant.weighingfinding5. Lucy has a great sense of humour and always keeps her colleagues _________
(amuse) with her stories.
6.____________(approach)the city centre， we saw a stone statue of about 10 meters in height.amusedApproaching7. We were astonished _________(find) the temple still in its original condition.
8. The lawyer listened with full attention, ______(try) to miss any point.tryingto find三、完成句子 根据汉语提示完成英语句子。1. According to Professor Wang, slightly more than half of the school children in our country are short-sighted, ________
________________ (居世界第一位). 2. _______________(网上聊天), students can more freely express their feelings and opinions.
3. In my opinion, ____________________ _____(生活在信息时代), if we don’t know the Internet slang, we seem to fall behind the times.Chatting on line4. In 2006, _________________________
_____________________ (在他打破世界纪录并获得金牌之后), he became the idol of the youth.
5. On that day people usually go back home to have a family reunion, ________ _________________(和家人共享一顿大餐).