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3. 3 Big Ben is the nickname for the great bell of the clock at the north-eastern end of the Palace of Westminster in London, and is often used to refer to the clock or the clock tower as well. The bells of the Great Clock of Westminster rang across London for the first time on 31st May 1859. It celebrated its 150th anniversary in May 2009.

4. 4 The tower is 96.3 metres high. The four clock faces are 55 metres above ground. Big Ben is the largest four-faced chiming clock. The four dials of the clock are 23 feet square, the minute hand is 14 feet long and the numbers are 2 feet high. Big Ben is an excellent timekeeper, which has rarely stopped.

5. 5 1. Big Ben was built ____ A for the BBC B after a fire C in honor of Sir Benjamin Hall D long before 1834 2. Accuracy is maintained ___ A by microphones in the clock tower B by workmen C because the clock is at Greenwich observatory C by officials who check the clock frequently B D

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7. 7 1.When were the Houses Of Parliament burnt down? The Houses Of Parliament were burnt down in 1834. 2. Who was made responsible for the construction of a huge clock? Sir Benjamin Hall was made responsible for the construction of a huge clock. 3. Did it become known as Big Ben or not? It became known as Big Ben.

8. 8 1.The Houses Of Parliament were burnt down in 1834. 2.Sir Benjamin Hall was made responsible for the construction of a huge clock. 3.It became known as Big Ben. (after… which) After the Houses of Parliament were burnt down in 1834, Sir Benjamin Hall was made responsible for the construction of a huge clock, which became known as Big Ben.

9. 9 4. Why is it very accurate despite its immense size? (For) It is very accurate despite its immense size, for officials from Greenwich Observatory have the clock checked twice a day. 5. Has this clock often gone wrong, or has it rarely gone wrong? Why can it be heard on the BBC when it is striking? (this clock which… because) This clock which has rarely gone wrong can be heard on the BBC when it is striking because microphones are connected to the clock tower.

10. 10 After the Houses of Parliament were burnt down in 1834, Sir Benjamin Hall was made responsible for the construction of a huge clock, which became known as Big Ben. It is very accurate despite its immense size, for officials from Greenwich Observatory have the clock checked twice a day. This clock which has rarely gone wrong can be heard on the BBC when it is striking because microphones are connected to the clock tower

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12. 12 If the houses of parliament ____________________(not burn) down in 1834, the great clock __________________________ (never erect). You didn’t come yesterday, so you didn’t see the famous actor. If you _________________(come) yesterday, you __________________ (see) the famous actor. Last Sunday the boy fell into the river. Luckily a teacher saved him. If the teacher _____________(save) him last Sunday, the boy ______________(die). had not been burned would never have been erected had come would have seen had not saved would have died

13. 13 1.parliament 2.erect 3.Benjamin 4.responsible 5.immense 6.extremely 7.accurate 8.official 9.Greenwich 10.observatory 11.strike 12.microphone 13.rarely

14. 14 ♪It can be heard ___ _____ the world when it is _______. ♪It ___ ___ _____ ____Sir Benjamin Hall. ♪It is ___ immense size. ♪It is extremely ________./ it ______ goes wrong./ it rarely ____ ___give the correct time. ♪It is _______ twice a day. all over striking takes its name from of accuraterarely fails to checked

15. 15 useful expressions 1.all over the world 2.burn down 3.take its name from… 4.be responsible for 5.be of immense size 6.as well 7.have the clock checked 8.go wrong 9.fail to do sth. 10.slow down 1. 全世界 2. 焚毁 3. 得名于 4. 对 … 负责 5. 外型巨大 6. 也 7. 使这个钟被矫正 8. 出差错 9. 不能做成某事 10. 变慢

16. 16 1. all over the world 他们已经游遍了全世界。 They have traveled all over the world. 英国吸引了来自全世界的游客。 The UK attracts visitors from all over the world. 2. burn down 3. take its name from… Stanford 因它的建立者而得名。 Stanford takes its name from its founder. Stanford is named after its founder.

17. 17 4. be responsible for the making of… 5. be of immense size

18. 18 He is 16 years old and she is also 16. They are of the same age. This apple is red and that apple is green. They are of different colors

19. 19 be of N. 1.be of+ the same \different+ age\height\ length\depth\width\size\color\shape 2. be of +(great\much \little\no)+ help\use\ value\ importance =be helpful\useful\ valuable \ important

20. 20 1.The decision is of great importance. =The decision is very important. 2.Your advice is of much value. 3.The tapes are of great help to learners of English.

21. 21 6. as well The clock is both huge and accurate. The clock is huge and accurate as well.

22. 22 7. have the clock checked 8. go wrong Something has gone wrong with my car. 9. fail to If you fail to plan, you plan to fail. 10.slow down He slowed her car down.

23. 23 1. 全国各地都在处于高温. 2. 美国应当对这次金融危机负责. (financial crisis) 3. 这本字典很有用. 4. 他既聪明又勤奋。 5. 昨天我让人修理了电脑。 6. 我的手表坏了。 7. 这架飞机无法起飞。 8. 墙上挂着一幅画。

24. 24 1. 全国各地都处于高温. It is hot all over the country 2. 美国应当对这次金融危机负责. (financial crisis) America should be responsible for the financial crisis. 3. 这本字典很有用. This dictionary is of great use/ help/value. 4. 他既聪明又勤奋。 He is clever,and hardworking as well. (all over) (responsible) (of) (as well)

25. 25 5. 昨天我让人修理了电脑。 I had my computer repaired yesterday. 6. 我的手表坏了。 Something's gone wrong with my watch. 7. 这架飞机无法起飞。 The plane fails to take off. 8. 墙上挂着一幅画。 A picture hangs on the wall. (have) (go wrong) (fail to) (hang)

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