初中英语牛津版 (深圳&广州)八年级下册（2013秋审查）Unit 7 The unknown world教课ppt课件

Unit 7 Period 3 Grammar

【学习目标】

掌握原因状语从句

【课前小测】         

完成句子

1. 因为一次碰撞，太空船被损坏了。

The spaceship was damaged ______ ______ a crash.

2. 恐怕我不同意你的意见。

I’m afraid that I _____ ______ you.

3. 我昨天去参观了世界上最大的降落场。

I went to see the largest ______ ______ in the world yesterday.

4. 我会尽快地完成这个项目的。

I will finish the project _______ _______ _______ _______.

5. 刚才他拒绝和我一起爬山。

He ______ _______ _______ mountains with just now.

【课堂练习】

A．选词填空

（ ）1._______ everyone is here, let’s begin our meeting.

     A. Because of   B. Since    C. So

（ ）2. ______ he was very ill, he still went on working.

     A. Because      B. For     C. Though

（ ）3. I knew nothing about it _____ my roommate told me.

     A. because       B. until     C. if

（ ）4. It is easy to find a good hotel in our city______ we have many of them here.

     A. though        B. because    C. when

（ ）5. Bob is young, _____ he knew a lot.

     A. because        B. so        C. but

B．用适当的连词完成下列句子

1. _________ you know you are wrong, you had better admit it.

2._________ he couldn’t express himself freely, he had to make some gestures.

3. Did he buy many books _______ he was fond of reading?

4. It was _______ he lost it that he found it more valuable than ever.

5. It must be snowing, _______ it is so bright outside.

【课堂小结】

1.当我们把原因状语从句放在句首时，我们经常用逗号将它和主句隔开。

2. because, as, since这几个词是表示“原因”的连词，语气由强到弱依次为because-since-as，它们均为从属连词。

3. since侧重主句，从句表示显然的或已为人知的理由，常译为“因为，既然”，语气比because弱稍弱，通常位于句首，表示一种含有勉强语气的原因。

4. as是常用词，它表示的是双方已知的事实或显而易见的原因。含义与since相同，但语气更弱，没有since正式，常译为“由于，鉴于”，从句说明原因，主句说明结果，主从并重。Eg：We all like her as she is kind. 我们都喜欢她，因为她善良。

【家庭作业】

A.选择填空

（ ）1. She spends a lot of money shopping _____ she is very rich.

      A. so        B. because       C. if

（ ）2. ——Did you give your father a call?

       —— I didn’t need to, ________ I’ll see him soon.

      A. when      B. though       C. because

（ ）3. We can’t go fishing _______ the bad weather.

      A. because of   B. because      C. as

（ ）4. Peter likes reading a newspaper _______ he is having breakfast.

      A. until       B. while       C. because

（ ）5. _______ everyone knows, the Earth is not flat.

      A. As        B. Since       C. Because

B．用适当的连词完成下列句子。

1. Why didn’t he come?

 ______he was ill.

2. _______ your help, we could finish the job on time.

3. The ground is wet, _______ it has rained.

4. It must have rained, _______ the ground is wet.

5. He can’t come______ his illness.

6. The spaceship was damaged________ a crash.

7. ________ she was tired, she didn’t stop to have a rest.

8. I knew nothing about it _______ I was told.

9. We can’t be successful_______ we keep on working hard.

10. Everyone got wet _______ it was raining cats and dogs.

【课后预习】

从下面每小题的选项中选出可以替换划线部分的最佳选项。

（ ）1. Please keep quite! Don’t be so nervous.

      A. strong     B. excited      C. calm

（ ）2. He doesn’t know why she refused his invitation to the party.

      A. accepted    B. didn’t accept     C. didn’t receive

（ ）3. There is a black mark on the killer’s hand, but no one knows its meaning.

      A. prize      B. rule       C. sigh

（ ）4. Two green creatures speaking a strange language were coming toward us.

      A. cars       B. strangers    C. living things

（ ）5. A red light appeared suddenly and lasted a few minutes.

      A. showed up    B. ran away   C. flew away