高一英语必修4unit4语法

1、a running manthe man running inthe picture is liu xiang. 后置定语后置定语the man who is running in the picture is liu xiang.practicerewrite the following sentences.1. the bottle which contained the poison was sent to the laboratory. the bottle containing the poison was sent to the laboratory.the building be

2、ing built now is our new library. 2. the building which is being built now is our new library. 3. the man sitting on the platform is a professor from wuhan university.the man who is sitting on the platform is a professor from wuhan university.v-ing 作伴随状语作伴随状语v-ing 作伴随状语作伴随状语v-ing 作伴随状语作伴随状语v-ing 作方式

3、状语作方式状语二、二、v-ing 形式作状语形式作状语v-ing 短语在句子中可作状语，来修饰短语在句子中可作状语，来修饰谓语动词谓语动词或或整个句子整个句子，表示动作发生的，表示动作发生的时间、原因、条件、结果、让步或伴随时间、原因、条件、结果、让步或伴随等情况。等情况。v-ing短语作状语，在功能上短语作状语，在功能上相当于一个完整的相当于一个完整的状语从句状语从句。being so angry, he couldnt go to sleep.=because he was so angry, he couldnt go to sleep. being a student, you sho

4、uld study hard. =since you are a student, you should study hard.working harder, you will succeed. =if you work harder, you will succeed. 1. 使用使用v-ing 形式作状语时，其逻辑主语形式作状语时，其逻辑主语必须必须与主句的主语与主句的主语一致一致。如：。如： seeing the policeman, the thief ran away quickly.seeing 的逻辑主语也是的逻辑主语也是the thief 2.使用使用v-ing 形式作状语时形

5、式作状语时，其逻辑主，其逻辑主语与语与主句主语主句主语的关系必须是的关系必须是主动关系主动关系。如：如：对比练习对比练习see.if playing all day, you will waste your valuable time. 1. if you play all day, you will waste your valuable time.though raining heavily, it cleared up very soon. 2. though it was raining heavily, it cleared up very soon. 独立主格：独立主格： wait

6、ing for the bus, a bird fell on my heard我等汽车时，一只鸟落到我头上。我等汽车时，一只鸟落到我头上。 _, well do another two exercises. 如果时间允许，我们将做另两个练习。如果时间允许，我们将做另两个练习。i如果如果v-ing 的逻辑主语与主句主的逻辑主语与主句主语不相同，必须保留语不相同，必须保留v-ing 逻辑逻辑上的主语，这种语法现象称上的主语，这种语法现象称独立独立主格主格结构。结构。time注意三：注意三：如果如果v-ing 动作动作先于先于主句的的谓语动词而发主句的的谓语动词而发生的话，必须使用生的话，必须使用

7、v-ing 完成式完成式- having done sth. 注意四：注意四：功课做完后，我就回家了。功课做完后，我就回家了。 not knowing his address, i could do nothing but stay at home and wait.v-ing 形式（短语）的否定形式形式（短语）的否定形式常在其（常在其（ ）加）加not /never等。等。前面前面注意五：注意五：用动词的用动词的-ing形式改写下列句子。形式改写下列句子。1. because i stand on the top of the hill, i feel cold._ on the top o

8、f the hill, i feel cold.2. because he hadnt received an answer, he decided to write another letter to him._ _ _ an answer, he decided to write another letter to him.standingnot having receivedpractice:3. when he sees the mountain, he always thinks of his hometown._ the mountain, he always thinks of his hometown.4. because the students felt hot, they didnt stay in the school. _ _, the students didnt stay in the school.5. he hunted all the shops to look for a nice present for his mother.he hunted all the shops, _ _ a nice present for his mother.looking for seei