牛津版（深圳·广州）英语八年级下册Module4 Discovery Unit 7 The unknown world单元语法全解-原因状语从句及练习（含答案）

八下U7-The unknown world-单元语法全解
原因状语从句
用法 例句
定义 用连词连接一个在句中充当原因状语的从句 I do it because I like it.As we have no money, we can’t buy it.
位置 位于句首时常用逗号与主句隔开。位于句尾时，可以用逗号，也可以不用逗号隔开。 Since you’re not interested, I won’t tell you about it.
because 表示直接原因，它所指的原因通常是对方所不知道的，其语气最强。 常用来回答why 所提出的问句，一般放在主句之后，也可以单独使用。 I stayed at home because it was raining.
since 侧重主句，从句表示显然的或已为人所知的理由，常常翻译为“既然” Since everyone is here, let’s start.
as 它表示的是双方已知的事实或者显而易见的原因。常翻译为“由于、鉴于”，常放于句首。 As it is raining, it is better take a taxi to the train station.
for 连接的是并列分句，它虽表示原因，但并不说明主句行为发生的直接原因，只提供一些辅助性的补充说明；for放在两个并列的分句之间。 He seldom goes out now, for he is very old.

拓展：①because, since, as这几个词都表示“因为”，语气由强到弱依次是 because>since>as
②because of介词短语，其后可接名词、代词或者动名词。 He lost his job because of his age.

一：用as, since, because, because of, for填空(每题1分，共10分)
1. They didn’t go to the museum yesterday ______________ the rain.
2. He was punished _______________ breaking the law.
3. Many people like pandas ______________ they are cute.
4. Mary missed the train ____________ she arrived late.
5. It will rain, _________ the sky is dark.
6. ___________ we live near the river, we can often go swimming in summer.
7. --Why do you like English? -- ___________ it’s so interesting.
8. _________ a good teacher, he worked very hard.
9. _________ the heavy rain, we had to stay inside.
10. ___________ you feel ill, you’d better stay in bed.

二．完成句子(每题2分，共20分)
1. 既然你认为你是对的，那你为什么不坚持呢?_______ ________ ________ _______ ________, why don’t you hold on to it?
2. 我喜欢数学，因为我认为它非常有用并且重要。I like math ________ I think it’s very _________ and _________.
3. 由于你离开了，我们不得不取消这次活动。_________ ________ _________, we had to call of the activity.
4. 你应该穿上你的外套，因为外面冷。You should ________ _________ your coat ___________ it is cold outside.
5. 既然你累了，你可休息一下。__________ you are tired, you may ________ _______ ________.
6. 由于雨下得很大，所以我们没有去游泳。__________ it was raining _________, we didn’t go swimming.
7. 因为她生病了，所以她没有去上学。She didn’t go to school __________ _________ her illness.
8. 这个男孩没有完成作业是因为他太懒了。The boy didn’t finish his homework ________ _______ ______ too lazy.
9. 既然你回答不出这个问题，我就问别人了。__________ you can’t answer the question, I’ll ask someone _________.
10. 她小声地说话，因为不想吵醒孩子。She spoke _________ __________ she did not want to wake up the baby.

三．完形填空(每题1分，共15分)
A thousand years ago, Hong Kong was covered by a thick forest. As more and more people came to ___1___ in Hong Kong, these trees were cut down and burnt. Now there is ___2___ forest left, though there are still some small areas covered with trees. we call these woods.
Elephant, tigers and many ___3___ animals were living in the thick forest. When people came to live in Hong Kong, the ___4___ began to die out. Early farmers grew rice and ___5___ pigs and chickens in the valleys. They cut down the trees and burnt them. They need ___6___ to keep themselves warm in winter, to cook their food and to keep away the dangerous animals. Elephants quickly disappeared because there was not enough food for them. ____7__ did most of the wolves and tigers. Monkeys and many other animals soon ___8___ in the same way.
You might think that there are no longer any animals in Hong Kong ____9__ in the zoos. There are still about 36 different animals ___10___ there. One of the most interesting of Hong Kong’s animals is the barking deer. These are beautiful little animals ___11___ a rich brown coat and a white patch(补丁) under the tail. They look like as ___12___ as deer but they are much like a dog ___13___. In Hong Kong the barking deer has only one real enemy-- ___14___. People hunt these animals though it is illegal. There are now not many barking deer left. ___15___ it is important for people to protect them.
( )1. A. work study live enjoy
( )2. A. many a few no not
( )3. A. other others the other another
( )4. A. people animals plants things
( )5. A. grew made got kept
( )6. A. fire hotness heat stoves
( )7. A. So Such As Nor
( )8. A. lived died came left
( )9. A. besides except and or
( )10. A. live to live lived living
( )11. A. have without with get
( )12. A. high higher short shorter
( )12. A. shouting crying barking talking
( )14. A. tigers men wolves elephants
( )15. A. So But And Because

四．阅读理解
My elder brother Steven gave me important lessons in values that helped me grow into an adult after my father died when I was six years old.
For example, Steve taught me to face the results of my behavior. Once when I returned in tears from a?Saturday baseball game, it was Steve who ask me what happened. When I told him that my baseball had flown through Mrs. Holt's basement window, breaking the glass with a crash, Steve encouraged me to confess to her. After all, I should have been playing in the park down Fifth Street and not in the path?between buildings. Although my voice shook?as I explained to Mrs. Holt, I offered to pay for the window?from my pocket money.
I also learned from Steve that personal property(财产) is a sacred(神圣的) thing. After I found a shiny silver pen in my?fifth-grade classroom, I wanted to keep it, but Steve explained that it might be important to someone else in?spite of the fact that it had little value. He also reminded me of how sad I was when I lost the small?dog my father made from a piece of wood. At last, I returned the pen to my teacher, Mrs. Davids. And I still?remembered the smell of her perfume as she patted me on the shoulder.?
???? Yet of all the lessons Steve gave me, his respect for life is the most vivid in my mind. When I was?twelve, I killed an old brown sparrow in the garden with a gun. Excited with my accuracy, I asked?Steve to come from the house to take a look. I shall never forget the way he stood for a long moment and?stared at the bird on the ground. Then in a dead, quiet voice, he asked, "Did it hurt you first, Mark?" I didn't?know what to answer. He continued with his eyes firm, "Even if it hurts you first, you should think a long time and then decided whether your will kill it or not." I really felt terrible then, but that?moment stands out as the most important lesson my brother taught me.
1. How many lessons Steve gave to Mark are mentioned in the passage?
A. One B. Two C. Three D. Four
2. From the second paragraph, we know that when Mark confessed to Mrs. Holt, ___________.
A. he felt surprised B. he felt excited C. he felt frightened D. he felt delighted
3. What is the main subject of the passage?
A. The relationship between Mark and Steve. B. The important lesson Mark learned in school.?
C. Steve's important role in Mark's growing process.? D. Mark and Steve's respect for living things.
4. In the story about the pen, which of the following lessons did Steve teach his brother?
A. Respect for personal property. B. Respect for life.?
C. Sympathy for people with problems. D. The value of honesty.
5. According to the writer, which was the most important lesson Steve taught his young brother?
A. Respect for living things.? B. Responsibility for one's actions.?
C. The value of honesty.? D. Care for the property of others.
6. The underlined word "confess" probably means _____.
A. apologize? B. explain? C. complain D. argue
7. Which of the following is true according to the passage?
A. Mark was a little boy when he wrote this passage.
B. Mark lost the small dog his father bought.
C. When a living thing hurts you, you should kill it.
D. Even if a living thing hurts you, you should not kill it at once.

























一：填空
1. because of 2. because of 3. because 4. because 5. for
6. Since/As 7. Because 8. As 9. Because of 10. Since
二：完成句子
1. Since you think you’re right
2. because; useful; important
3. As you left
4. put on; because
5. Since; have a rest
6. As; hard/heavily
7. because of
8. because he was
9. Since, else
10. quietly; because
四：完形填空：CCABD AABBD CACBA
阅读理解：CCCAAAD