高中英语选修七 Unit 03 B

1、.,Discovering useful words and expressions,Find out the words in the text and judge how they have been used.,dive,witness,pause,urge,drag,1,1,2,2,2,.,Key to Ex. 2.,1. anecdotes,2. Teamwork,3. conservation,4. opposite,5. abandon,Key to Ex. 3.,When I was young, my parents like jogging on the beach. So

2、 we used to visit the seaside on our _ holiday. We always stayed in _ close to the _ because my parents had a good _ with the owner of the hotel. We also went snorkeling each time and would _ under the waves to see the colorful fish. As I grew older I was allowed to go to greater _ and further out b

3、eyond the bay. There I saw small _ as they swam lazily around the sea bottom. One day I _ how they would pursue their prey swiftly, and the small fish had no time to _ away. I wanted to _ and warn the poor fish but that was impossible underwater. Thank God it was; otherwise, I might have been swallo

4、wed instead!,annual,accommodation,shore,relationship,dive,depths,sharks,witnessed,flee,yell,.,Discovering useful structures,Key to Ex. 1.,I heard a loud noise coming from the bay. animal opposite us throwing itself and then crashing down again. I had already heard that Gorge didnt like being kept wa

5、iting Without pausing we jumped into the boat with the other whalers and and could see Old Tom swimming by the boat, showing us the way. so George started beating the water with his oar and there was Tom, circling back to the boat, leading us to the hunt again. Using a telescope we could see that so

6、mething was happening. I could see a whale being attacked by a pack of about six other the killer over there are throwing themselves on top of the whales blow-hole to stop it breathing. And those others are stopping it diving or fleeing out to sea. George told me, pointing towards the hunt. The kill

7、ers started racing between our boat and the whale just like Being badly wounded the whale soon died. The men started turning the boat around to go home. added Red, laughing. urged George, shouting loudly. From Jamess face, I could see he was terrified of being abandoned by us. I saw James being firm

8、ly held up in the water,.,Key to Ex. 2.,being attacked Being held up Being included,Having been accepted being told Being helped out,being taken being photographed being swallowed,Key to Ex. 3.,Fishing net in the sea have become a serious problem. They may be many kilometers long with plastic balls

9、to keep them floating on the water, and weights to hold them down on the seabed. Unfortunately, the plastic nets are impossible to see underwater. So the term to describe them is “a wall of death”. Their advantage is that they catch fish efficiently. However, they also cause danger to sea animals. F

10、irst, not only target fish are caught in the net, but many other sea animals are found hanging there. Those not needed for marketing are thrown away. Second, nets are in danger of being cut loose by fishermen. If a net becomes free-floating, it is moved by the tides all over the ocean. It behaves as

11、 a hidden danger, killing all that are trapped in it. So many animals being caught in driftnets make many think that it is necessary to have a worldwide ban on all driftnet fishing.,.,Unit 3,Grammar,Revisethe Passive Voice of ing Form,.,一、行为主体不明确，不必说出或者无法说出动作的执行者时。例如： Football is played all over the

12、 world 二、不易找到或根本就不可能找到动作的执行者时。例如： My bike was stolen我的自行车被盗了。,何时使用被动语态呢？,.,三、汉语中含有“据说”、“据悉”、“有人说”、“大家说”等时。例如： It is said that one day he climbed to the top of a house. It was reported that her mother died of SARS. 众所周知 It is well known that. 据推测说 It is supposed that,.,四、汉语中含有“被”、“由”等词时。 例如： Wei Hua

13、was asked to come by Lin Tao 魏华是被林涛叫来的。 五、某些句子习惯上用被动语态。 例如： He was born in October, 1989,.,六、表示礼貌时。 例如： You are friendly invited to come to our English party at 8:00 p.m. tomorrow 敬请您明天晚上8：00光临我们的英语晚会。,.,V-ing 形式由 “doing” 构成， 其否定形式是 “not doing”, V-ing 可以带宾语或状语构成 V-ing 短 语，没有人称和数的变化，但有 时态和语态的变化。,V-in

14、g 形式,.,(not) doing,(not) being done,(not) having done,(not) having been done,.,当非限定性动词-ing的逻辑主语 是-ing所表示的动作对象时要用 -ing的被动形式，包括其一般形式 “(not) being+-ed分词和完成形式 “(not) havingbeen+-ed分词” 。,什么情况用V-ing 形式的被动式呢？,.,当动词-ing 形式的逻辑主语是 动作的承受者时，就要用动词-ing 形式的被动语态。 动词-ing形式的被动语态和它的 主动语态一样，在句中可以作主语、 宾语、定语、状语。,动词-ing形式

15、的被动语态,.,1. Being killed by sharks in the sea is a common thing. 2. Being helped out by the killer whales, the whalers were able to make successful kill.,用作主语,.,_ to sunlight for too much time will do harm to ones skin. (上海高考题 2002)A. Exposed B. Having exposedC. Being exposed D. After being exposed,分

16、析：本句中expose与ones skin是动宾 关系，根据句意，应该是皮肤被暴露在 阳光下，所以要用动词-ing形式的被动 形式作主语，故答案为C。,.,He was afraid of being scolded by the teacher. 2. I remember having been told the story. 3. I didnt like the idea of being thrown about in a boat on a rough sea.,用作宾语,.,V-ing 形式既可作动词的宾语, 也可作 介词的宾语。 The bird escaped _ (catc

17、h). He was afraid of _ (abandon) by us.,being abandoned,being caught,.,在 avoid, admit, appreciate, complete, consider, delay, enjoy, escape, excuse, finish, forgive, imagine, mind, miss, practise, risk, suggest, give up, put off, feel like, insist on 等后只接V-ing形式作宾语。,注意,.,The problem being discussed

18、now is very important. 2. The house being built will be our library upon its completion.,用作定语,.,1. Being asked to answer the question, she couldnt refuse. 2. Having been given such a good chance, how would you not value it at all?,用作状语,.,Ving 一般时和一般时的被动形式; (1) He hurried home, looking behind from ti

19、me to time. (2) The building being repaired is our dormitory.,.,Ving 的完成时和完成时的被动形式,(1) Having heard this , our teacher expressed her satisfaction. (2) Having been asked to stay, I couldnt leave.,.,在绝大数情况下，句子的逻辑主语是句中的主语，但有时可有一个名词或代词表示逻辑上的主语，这种带逻辑主语的结构称为独立结构。 The meeting being over, we all left the ro

20、om and drove home. 会议结束后, 我们都离开房间开车走了。,.,It being a holiday, all the shops were shut. 由于今天是假日，所有商店都关门了。 The heavy frost coming on, dead leaves lay thick on the ground. 浓霜降临, 落叶满地。,.,一些动词如need, want, require等作 “需要”讲时, 其后的动词-ing形式的主 动语态表示被动意义, 也可以用不定式的 被动形式来替换。如：,注意,The blackboard needs cleaning. = Th

21、e blackboard needs to be cleaned. 黑板需要擦干净。,.,The broken window wants repairing. = The broken window wants to be repaired. 那个破窗户需要修理。,另外注意be worth及be worthy 的用法：The problem is worth discussing.The problem is worthy of being discussed.The problem is worthy to be discussed.,以上三个句子都意为“这个问题值得讨论”。,.,1. -

22、What made Bill so angry? - _. His girl friend promised to come at 8:30, but she hasnt come yet. A. Having kept waiting B. Being kept waiting C. To be kept waiting D. Being kept waited,Practice,.,2. The building _ in our school is for us teachers. Though theres noise most of the day, we still feel ha

23、ppy about it. A. built B. having been built C. to be built D. being built,.,3. The squirrel was lucky that it just missed _. A. catching B. to be caught C. being caught D. to catch,.,4. While shopping, people sometimes cant help _ into buying something they dont really need. A. to persuaded B. persuading C. being persuaded D. be persuaded,.,5. _ many times, the boy still didnt know how to do the exercises. A. Having taught B. Having been taught C. taught D. Teachin