Unit Nine

1. Unit Nine Is there Life on Earth?

2. Warm-up Activity • 1.Students are divided into pairs. • 2.The teacher writes on the blackboard the following questions : • 1)the Venus Institute of Technology • the Venus Evening Star • Venus Beings • The Grubstart • Zilches • 2)earth’s surface in the area of Manhattan • the Consolidated Edison Belt • something that looks like a river • metal particles • stalagmite projections • granite formations • 3.Each pair is to figure out the meaning of these expressions, using context clues provided in the text. • The teacher will sum up what the students have discussed

5. Key structures • !.It is (was) that (who)… • It is Tom who is responsible for the accident. It was in this very place that we met. • 2.It is(was ) not until…that. • It was not until two days ago that I knew the bad result. It was not until all the work had been done that we went home. • 3.the more…,the more. • The more you have ,the more you want . • The more work we give our brains ,the more work they are able to do. • The more, the merrier. • The more in danger ,the more courageous should be.

6. Language points • 1.give sb some idea: enable sb to know about. • 1).The map can give you some idea of the city’s size . • 2).Can you give me some idea of the university. • Get some idea of,have some idea. Have no idea • 3).Do you have any idea of where he lives. • 4).I have no idea how the brain really works. • 2.be involved in:be mixed up or caught in… . • 1).They are all involved in it, whether they like it or not. • 2).A lot of people were involved in trouble. • 3).She was involved in working out the plan. • 4).Do not involve me in your matter. • 5 ).she likes to involve others in her business. • Be involved with sb :be closely connected with sb. • He is deeply involved with his girl friend and feels he must marry her.

7. 3.suggest:show, hint ,imply • 1).Her red face suggests good health. • 2).His yawning suggests that he is sleepy. • Suggest sth to do suggest (to sb )that suggest doing sth • 4.recall:remember • 1).I recalled my last holiday with her. • 2).Can you recall exactly what you saw last night? • 3).The picture recalled to me my happy days at college. • The picture recalled my school days to my mind. • 4).The old clothes recalled the days of childhood to me. • 5).The flowers recalled the garden to me. • Remind+ sb + of+ sth recall +sth + to +sb

8. 5.put…to ( a good, better)use: make a good use of • !).You should put to use everything you have learnt. • 2).I felt you should have put your savings to a better use • put into practice put into operation put into words put to a test • 6.differ from: be different from. • 1)My idea differs from yours • 2)The two brothers differ greatly from each other • 3). Sorry. I differ with you on this point. • 7.compare to: be regarded as being like or equal to . • 1).He always compares life to voyage. • 2)Beautiful girls are usually compared to flowers. • 3).Books can be compared to friends. • Compare with: examine one thing (person) together with another. • 4).I have done little this year, compared with what I did last year. • 5).He compared his watch with mine.

9. 8.limit • 1).There seems to be no limit to his patience. • 2). There is a speed limit of 30m ph in cities. • Have ( no ) limit set a limit to There is a limit to There is a limit to everything • With limits limit for space without limit limits in number • Limited in ability limit in intelligence limit for money • 9.head, brain, mind metal • have a good brain use one’s brain rock one’s brain tax one’ brain • He has a scientific mind in one’s mind change one’s mind be of the same mind • Make up one’ mind metal illness metal patient metal treatment • 10.complex,complicated. • a complex sentence a complex proposal a complex argument • The sound system in English is very complicated • Complicated machine complicated deals complicated people’ relationship