约6300字。

　　M3U1 The world of our senses学案
　　Project
　　Aim: train the students’ integrating skills by reading and doing a project
　　第一部分：重点讲解
　　1. The chances of  (= the possibilities of ) being attacked by a shark are very small ( if it is )compared to other dangers.
　　△the chance of doing / to do / that…
　　eg. There is a good chance of his winning / that he will win.
　　△Compared to / with China , Japan is a small country in population.
　　2. Many more people drown in the ocean every year than (people who ) are bitten by sharks.
　　3. The low number of attacks (that happen every year) proves that sharks do not feed on humans if they have the choice.
　　△prove that…
　　△feed on
　　4. The latter two types of attacks are more likely to be deadly for humans.
　　△the latter / the former
　　△sb./ sth. be likely to do / It’s likely that ...
　　5. follow the advice below
　　6. Sharks can smell over a long distance / from far away.
　　7. …because sharks are attracted to colors and shiny objects.
　　△ be attracked to sb. / sth.
　　8. Don’t be frightened by sharks as there is 30 times greater chance of being hit by lightning than being attacked by a shark.
　　别被鲨鱼吓坏,因为人被闪电击中的可能性是遭到鲨鱼袭击的可能性30倍.
　　△倍数+比较级
　　eg. The car is twice faster than mine.
　　There are three times more people than here.
　　She is more beautiful than you. One million times more beautiful than you.
　　△倍数+ as … (as…)
　　eg. There are three times as many people as here.
　　△倍数+the size , height , length, width … of ….
　　eg. The house is twice the height of the one here.
　　第二部分：练习
　　I. 单项选择
　　1. _______ the laboratory, you must follow the teacher’s instruction.
　　A. If you in  B. Once are in   C. Once in    D. B or C
　　2. ─Why was the man taken away by the police ?
　　─ He _______ the jewelry shop last night , when the shop was robbed.
　　A. was noticed enter    B. was observed to enter
　　C. was observing to enter     D. observed someone to enter