1、Unit 1 Great Scientists,The first paragraph Find a problem: What causes cholera?,The second paragraph,Make up a question: Which theory is correct?,The third paragraph,Think of a method :Collect data on those who were ill or died and where they got their water.Collect results: Plot information on a m
2、ap to find out where people died or did not die.,The fourth paragraph,Analyse the results: Analyse the water to see if that is the cause of the illness.,The fifth paragraph,Repeat if necessary: Find other evidence to confirm your conclusion.,The sixth paragraph,Make a conclusion: The water is to bla
3、me. The source of all drinking water should be examined so that it is safe.,Exercise 1,The problem: Nobody knew the cause of the serious disease of cholera The cause: Idea 1: strange cloud in the air that attack victims. Idea 2: people absorbed the disease with their meals. The method: Collect data
4、from the next cholera attack to test theories. Try to prove which method was correct.,The results: He found the cause of cholera was the polluted water. Idea 1 or 2? Why ? Idea 2 because the data showed a connection with the water. The conclusion: John Snow was able to defeat cholera once its cause
5、was known.,1. Cholera was 19th century disease, which two diseases are similar to cholera today ? Why ?,SARS and AIDS. They are both very serious, have unknown cause and need public health care to solve them.,Free Talk,Learning about Language (P4)Answer key for exercise 1: examined , put forward, ex
6、posed, cure, immediately, look into, announced , instruct, valuable,verb. - make + a + noun (make 表示作出某种行动,常与名词连用,以代替同该名词相关的动词,表示完成一个动作) choose -make a choice apologize - make an apology agree - make an agreement admit -make an admission,Answer key for exercise 2:( Page 4) make a telephone call make
7、 a decision make a plan make a contribution make a speech make a noise make a change make a description,a used stamp a 一条受污染的河流 a broken coin 一台损坏了的计算机 a buried box of coins 一枚破损的硬币 fallened trees 穿破了的鞋子 an injured finger 一个受伤的手指 worn-out shoes 一枚用过的邮票 a polluted river 一箱埋起来的硬币 a damaged computer 倒下
8、的树,a used stamp a a river which is polluted a broken coin a computer which is damaged a buried box of coin a coin which is broken fallen trees shoes that are worn out an injured finger a finger that is injured worn-out shoes a stamp that is used a polluted river a box of coins that is buried a damag
9、ed computer trees which are fallen,Page 5 Ex.2 1. people who are terrified 2. seats which are reserved 3. water that is polluted 4 a room that is crowded 5. a winner who is pleased astonished children a broken vase a closed door the tired audiencea trapped animal,Page5 Ex3. He got _ about losing the
10、 money. Why do you always look so_? Do you sleep well these days? I was _ with the film I saw last night. I had expected it to be better. Everybody was _ to hear the death of the famous film star. The children are really _about going to the zoo. His wound became _ with a new virus.,worried / blamed,
11、tired,disappointed,Shocked / depressed /astonished,excited,infected,及物动词:不及物动词:,现在分词: 表示正在进行的动作,过去分词: 表示已经完成的动作,现在分词:表示进行的意思,过去分词: 表示完成的意思,而非表被动,1. Look. The falling leaves are all yellow. Lots of fallen ( vi.)现在分词表示进行 (vi.)过去分词表示完成,而非表被动leaves make the road yellow. =Look. The leaves that are fallin
12、g are all yellow. Lots of the leaves that have fallen make the road yellow.2. At the party I met my schoolmate just returned from Africa. (vi.)过去分词表示完成而非表被动= At the party I met my schoolmate who has just returned from Africa.,3. China is a developing country and America is a developed country. ( vi.
13、)现在分词表示正在进行 (vi.)过去分词表示完成,而非表被动 =China is a country that is developing and America is a country that has developed.,Page 42 Ex.1 exposed to , linkto , connectto, blame, severe, examine, test, rejected, absorbed, defeated,Page 44 Ex.1 1. prepared 2. interested 3. worried, continued 4. arrived 5.conce
14、rned 6. frightened,Ex. 2 I found his broken plate in the floor. I saw a tall, dark and handsome man called Xiao Ming. I looked at that modern abstract painting coloured in yellows and greens. 4. Yesterday I got the expected answer to my question. 5. She is my friend devoted to my interests . 6. On t
15、he doorstep I found a lot of bottles marked in green ink. 7. We saw many cracked windows in that room.,1.Only if you put the sun there did the movements of the other plants in the sky make sense.,以“Only + 状语”开头的句子要用倒装句，即将助动词或连系动词置于主语之前。如果句子为主从复合句，则主句倒装，从句不倒装,Eg. 1)Only in this way can we learn Engli
16、sh better.,2)Only when he is seriously ill does he ever stay in bed.,2）修饰主语 以外时，置于be动词、助动词之后，其他动词之前。,3）要确定所修饰的事物时，则置于所修饰的词或短语之前。,She only eats vegetables.,I have only seen him once.,I met her only yesterday.,1）修饰主语时，通常置于主语之前。,Only you can understand me.,2. But only his new theory could do that. (不用倒
17、装句),在不定式前只能用whether而不能用if eg. The question is whether to go or stay. 2. 在介词后边也只能用whether而不能用ifeg.It depends on whether hes ready or not. 3. 在名词之后也只能用whether而不能用if eg.Its your decision whether you go or stay. 4. 在以下这类句子中和or not连用时，也只能用whether I asked him whether or not he was coming. = I asked him if
18、 he was coming or not.,Time will show if his theory is true or not.,whether his theory is true or not.,下列情况要用whether而不能用if,Time will show if his theory is true or not. (T),Time will show whether his theory is true or not.（T),Time will show whether or not his theory is true.(T),Time will show if or not his theory is true. （F）,
