外研英语必修3Module4Grammar (共17张PPT)
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their boss passed them.
• 不定式完成式所表示的动作在谓语动作所表示的 动作之前发生。 主动：to have done
1. I’m the only person in my family to have been in a sandstorm.
2. He is not likely to have got my letter.
3. I’d like to be told about the situation before now.
4. The work needs to be completed by the end of the week.
5. My father was out of the city when the sandstorm came. He was very glad to have missed it.
6.We could do nothing but __w_a_it__（wait）.
巩固练习：P85 Grammar 1、2、3.
1)What is infinitive?
动词不定式属于非谓语动词。在英语中， 不能做句子的谓语，而是担任其他语法功能 的动词，叫非谓语动词。非谓语动词有3种： 动词不定式、动名词和分词。本部分我们学 习动词不定式。它除了不能作谓语外，在句 中可以充当任何成分，可以作主语、表语、 宾语、补语、定语和状语。
1. I’m glad to meet you. 2. The boy is old enough to go to school.
被动：to be done
1. There was nothing to be done. 2. I’d like to be told what’s going on.
The work on the house needs to be completed (the work) by the end of the week.
5. It seems that most houses have been destroyed by the storm.
Most houses seem to have been destroyed by the storm.
Check your answers of Exercise 3.
1. It is frightening to be walking in the road in a sandstorm. I hope I reach home soon.
2. Experts hope to learn more about the movement of sandstorms.
主动语态 1、2
与主动词同时发生，动作在进行 主动语态
3
to be doing
to have done
发生在主动词之前
主动语态
4wenku.baidu.com
to be done
与主动词同时发生或发生在主动 词之后
被动语态
5
to have been done
发生在主动词之前
被动语态
6
一）不定式一般式所表示的动作通常与谓语所表 示的动作或状态同时（或几乎同时）发生，或 在它之后发生。 主动：to do
• 不定式的时态有：一般式、进行式、完成 式、和完成进行式。
• 不定式进行式表示动作正在进行，与谓语 动词表示的动作同时发生。 主动：to be doing
1. To be cycling in a sandstorm is frightening. 2. They pretended to be working hard when
his plane high up in the sky. 表意外结果
2.He was the first student to come .(come)
受first second last…等修饰时，只能用动词不定式表纯修饰，做定语
3._T_o_t_e_ll__(tell)the truth, I am against your
1. I’m travelling during a sandstorm. It’s dangerous.
It is dangerous to be traveling during a sandstorm. 2. Experts hope that they will learn more about the movement of thunderstorms.
6. The building has to be finished by the end of the year.
7. To see a real sandstorm was very frightening.
Finish the following exercises.
1.Tom took a taxi to the airport, onlyt_o__fi_n_d_(find)
Experts hope to learn more about the movement of thunderstorms.
3. We were told, “Don’t leave the house.”
We were told not to leave the house.
4. The men need to complete the work on the house by the end of the week.
1)He seems to know everything in the world.
2)I wish to go to the moon.
3)He seems to be looking for something over there
4)He seems to have been to Egypt. He has some photos with pyramids behind himself.
5)The bridge is said to be built next year.
6)The book is reported to have been translated in several foreign languages.
形式
时间概念
语态
例句
to do
与主动词同时发生或发生在主 动词之后
被动：to have been done
1. To have been caught in a sandstorm is a terrible experience.
2. The room was said to have been cleaned.
Rewrite the sentences using infinitive structures.
题目：Grammar1 Module 4 Book 3
Module 4 Book 3
Grammar 1
Infinitive
Infinitive
1)What is infinitive? 2)How to use infinitive? 3)How many forms does infinitive have? 4)Some special usages of infinitive?
2)How to use infinitive?
Some Examples
In the following sentences, there are two verbs in every sentence, for example ,in the first sentence, we have two verbs, one is “seem”the other is “to know”,they happen at the same time. Now you read the other sentences to find the two verbs in each sentence and tell which verb happens first or do they happen at the same time?
plan. 做插入语，是独立成分
4.When _to__s_t_a_rt_(start)the meeting has not
been decided yet.
动 词 不 定 式 可 以 和 疑 问 词 连 用 e.g where to… why to… how to…. What to…
5.We had no choice but _t_o_w__ai_t__(wait)
• 不定式完成式所表示的动作在谓语动作所表示的 动作之前发生。 主动：to have done
1. I’m the only person in my family to have been in a sandstorm.
2. He is not likely to have got my letter.
3. I’d like to be told about the situation before now.
4. The work needs to be completed by the end of the week.
5. My father was out of the city when the sandstorm came. He was very glad to have missed it.
6.We could do nothing but __w_a_it__（wait）.
巩固练习：P85 Grammar 1、2、3.
1)What is infinitive?
动词不定式属于非谓语动词。在英语中， 不能做句子的谓语，而是担任其他语法功能 的动词，叫非谓语动词。非谓语动词有3种： 动词不定式、动名词和分词。本部分我们学 习动词不定式。它除了不能作谓语外，在句 中可以充当任何成分，可以作主语、表语、 宾语、补语、定语和状语。
1. I’m glad to meet you. 2. The boy is old enough to go to school.
被动：to be done
1. There was nothing to be done. 2. I’d like to be told what’s going on.
The work on the house needs to be completed (the work) by the end of the week.
5. It seems that most houses have been destroyed by the storm.
Most houses seem to have been destroyed by the storm.
Check your answers of Exercise 3.
1. It is frightening to be walking in the road in a sandstorm. I hope I reach home soon.
2. Experts hope to learn more about the movement of sandstorms.
主动语态 1、2
与主动词同时发生，动作在进行 主动语态
3
to be doing
to have done
发生在主动词之前
主动语态
4wenku.baidu.com
to be done
与主动词同时发生或发生在主动 词之后
被动语态
5
to have been done
发生在主动词之前
被动语态
6
一）不定式一般式所表示的动作通常与谓语所表 示的动作或状态同时（或几乎同时）发生，或 在它之后发生。 主动：to do
• 不定式的时态有：一般式、进行式、完成 式、和完成进行式。
• 不定式进行式表示动作正在进行，与谓语 动词表示的动作同时发生。 主动：to be doing
1. To be cycling in a sandstorm is frightening. 2. They pretended to be working hard when
his plane high up in the sky. 表意外结果
2.He was the first student to come .(come)
受first second last…等修饰时，只能用动词不定式表纯修饰，做定语
3._T_o_t_e_ll__(tell)the truth, I am against your
1. I’m travelling during a sandstorm. It’s dangerous.
It is dangerous to be traveling during a sandstorm. 2. Experts hope that they will learn more about the movement of thunderstorms.
6. The building has to be finished by the end of the year.
7. To see a real sandstorm was very frightening.
Finish the following exercises.
1.Tom took a taxi to the airport, onlyt_o__fi_n_d_(find)
Experts hope to learn more about the movement of thunderstorms.
3. We were told, “Don’t leave the house.”
We were told not to leave the house.
4. The men need to complete the work on the house by the end of the week.
1)He seems to know everything in the world.
2)I wish to go to the moon.
3)He seems to be looking for something over there
4)He seems to have been to Egypt. He has some photos with pyramids behind himself.
5)The bridge is said to be built next year.
6)The book is reported to have been translated in several foreign languages.
形式
时间概念
语态
例句
to do
与主动词同时发生或发生在主 动词之后
被动：to have been done
1. To have been caught in a sandstorm is a terrible experience.
2. The room was said to have been cleaned.
Rewrite the sentences using infinitive structures.
题目：Grammar1 Module 4 Book 3
Module 4 Book 3
Grammar 1
Infinitive
Infinitive
1)What is infinitive? 2)How to use infinitive? 3)How many forms does infinitive have? 4)Some special usages of infinitive?
2)How to use infinitive?
Some Examples
In the following sentences, there are two verbs in every sentence, for example ,in the first sentence, we have two verbs, one is “seem”the other is “to know”,they happen at the same time. Now you read the other sentences to find the two verbs in each sentence and tell which verb happens first or do they happen at the same time?
plan. 做插入语，是独立成分
4.When _to__s_t_a_rt_(start)the meeting has not
been decided yet.
动 词 不 定 式 可 以 和 疑 问 词 连 用 e.g where to… why to… how to…. What to…
5.We had no choice but _t_o_w__ai_t__(wait)