1、精選課件精選課件1Module 3精選課件精選課件21. Have you heard the latest news?2. Some scientists have sent a spacecraft to Mars.3. And have the astronauts discovered life on Mars?4. But astronauts have already been to the moon.Language practice精選課件精選課件4Grammar現在完成時用在什么地方呢？現在完成時用在什么地方呢？當我們要表達當我們要表達“某人某人曾經曾經做過某做過某事事”,

2、“某人某人已經已經做了某事做了某事”等意思時等意思時, 英英語要用語要用“現在完成時現在完成時”來表達。來表達。精選課件精選課件5 否定句否定句I have not worked.He/She has not worked.They have not worked. 肯定句肯定句I have worked.He/She has worked.They have worked.haventhasnthavent現在完成時的結構：現在完成時的結構：has/have + done (動詞過去分詞動詞過去分詞)精選課件精選課件6現在完成時的肯定形式是：現在完成時的肯定形式是：現在完成時的一般疑問句形式

3、是：現在完成時的一般疑問句形式是：She / He / It / 或人物的單數形式或人物的單數形式 has done sthI/We/You/They或人物的復數形式或人物的復數形式 have done sth現在完成時的一般疑問句形式是：現在完成時的一般疑問句形式是：Has done sth?she / he / it / 或或sb的單數形式的單數形式Have done sth? I / we / you / they / 或或sb的復數形式的復數形式精選課件精選課件7我父母曾經坐船去大連旅游。我父母曾經坐船去大連旅游。她已經完成作業。她已經完成作業。我父母未曾坐船去過大連旅游。我父母未曾坐

4、船去過大連旅游。My parents have travelled to Dalian by ship.She has done (finished) her homework.My parents havent travelled to Dalian by ship.精選課件精選課件8她還沒有完成作業。她還沒有完成作業。你父母曾經坐船去大連旅游嗎？你父母曾經坐船去大連旅游嗎？她已經完成作業了嗎？她已經完成作業了嗎？Have your parents travelled to Dalian by ship?Has she done (finished) her homework?She has

5、nt done (finished) her homework.要表達要表達“剛剛做完某事剛剛做完某事”、“已經做完某事已經做完某事”時，我們同樣可以用現在完成時。如時，我們同樣可以用現在完成時。如:I have just heard the news.Astronauts have already been to the moon.可以可以看出看出，just 用來表示用來表示“剛剛剛剛”，already 用來表示用來表示“已經已經”，一般置于一般置于have/has之之后，兩者都用于肯定句，后，兩者都用于肯定句，在否定句中則要在否定句中則要用用yet,表示表示“還（未）還（未）”。如：。如：

6、The scientists havent heard from it yet. have been to 與與have gone to 的區別的區別 1. have (has) been to意為意為“曾經去過某曾經去過某地地”，表示現在已經不在那里了。可表示現在已經不在那里了。可與與just, ever, never等連用。等連用。如：如：Ive just been to the post office. 我剛才去郵局了。我剛才去郵局了。Have you ever been to Hangzhou? 你曾經去過杭州嗎？你曾經去過杭州嗎？Mary has never been to the

7、Great Wall. 瑪麗從未去過長城。瑪麗從未去過長城。have (has) been to 后面可接次數，表示后面可接次數，表示去過某地幾次。去過某地幾次。Ive been to Beijing three times. 我去過北京三次。我去過北京三次。They have been to that village several times. 他們已經去了那個村莊好幾次了。他們已經去了那個村莊好幾次了。 have been to 與與have gone to 的區別的區別 2. have (has) gone to 意為意為“到某地去到某地去了了”，表示，表示到了某地或正在去某地的途到了

8、某地或正在去某地的途中。總之，說話時該人不在現場中。總之，說話時該人不在現場，一般，一般不用第一、第二人稱代詞作句子的主語。不用第一、第二人稱代詞作句子的主語。如：如： Where is Tom? 湯姆在哪里？湯姆在哪里？ He has gone to the bookshop. 他到書店去了。他到書店去了。 have been to 與與have gone to 的區別的區別 與現在完成時連用的幾個副詞：與現在完成時連用的幾個副詞：肯定句肯定句:疑問句和否定句疑問句和否定句: yet 常置于句末常置于句末already, never, ever, just一般置于一般置于 助動詞助動詞hav

9、e/has之后，過去分詞之前之后，過去分詞之前。already, just, ever, yet, never already, just ever, yet, neverA: Have you ?B: Yes, / No, (using already, just, ever, yet, never)精選課件精選課件151. They havent been to Mars. ( yet ) _2. Many astronauts have visited the space station. ( already ) _ _Many astronauts have already visit

10、ed the space station.They havent been to Mars yet.Put the words in the correct place in each sentence.精選課件精選課件163. The spacecraft has reached Mars. ( just ) _.4. Weve known that there isnt any life on the moon. ( already ) _ _.The spacecraft has just reached MarsWeve already known that there isnt an

11、y life on the moon精選課件精選課件175. We have started to look at other planets. ( just ) _ _.6. The space shuttle has returned from a visit to the space station.( just ) _ _.We have just started to look at other planetsThe space shuttle has just returned from a visit to the space station精選課件精選課件18 we / jus

12、t / TV / programme / on / a / watch / have /. _ _.We have just watched a programme on TV Put the words in order to make sentences.精選課件精選課件192. on / discovered / yet / life / they / Mars / havent /. _ _3. already / astronauts / landed / moon / on / the / have. _ _They havent discovered life on Mars y

13、et.Astronauts have already landed on the moon.精選課件精選課件20Look at these sentences.The astronauts have gone to the space station.Theyve gone there, but they havent come back. The astronauts have been to the space station.They went there and they came back.精選課件精選課件211. Astronauts have been / gone to the

14、 moon and returned safely.2. The spacecraft has been / gone into space. It wont return.3. The space shuttle has been / gone to the space station. It will come back tomorrow.4. The space shuttle has been / gone to the space station. It brought back two astronauts.Choose the correct words.精選課件精選課件22Co

15、mplete the sentences with the expressions in the box.1. A spacecraft _to Mars. Its coming back to Earth next year.2. Lots of astronauts _to the space station. They found it very interesting.has gonehave beenhave / has been have / has gone精選課件精選課件233. Some American astronauts_ to the moon several tim

16、es. 4. A British astronaut _ to the space station. Hell come back in January.have beenhas gone精選課件精選課件24Complete the passage with the correct form of the verbs.Nicky: Ive just (1)_ (see) a great TV programme about space. Did you know that scientists have (2)_ (discover) water on Mars?seendiscovered精

17、選課件精選課件25Bill: No! Really? Thats very interesting. (3)_ they _ (try) to find life on Mars?Nicky: Well, theyre looking for life but they (4) _ (not find) anything yet.Have triedhavent found精選課件精選課件26Bill: Theyve already (5)_ (find) that theres no life on the moon.Nicky: Yes, thats right. So far there

18、s only life on earth.found精選課件精選課件27Complete the passage with the words in the box.Dear Diary,Ive (1)_ finished reading a great book at school. I havent (2)_ anything as good as that for a long time! It is a book about the solar system. It is so good readjustalready been havent just never read writt

19、en yet精選課件精選課件28that Ive (3)_ asked the library to keep the next book for me! In the book, it says that astronauts have (4)_ to Mars and even to Jupiter. Ive (5)_ read that before! I think theyre keeping it secret! I (6)_ met anyone famous in my life but I hope one day Ill meet a real astronaut. alr

20、eadybeenneverhavent精選課件精選課件29Ive (7) _ to NASA to ask them for more information about astronauts and space. I hope they write back. They havent (8) _, but Im sure they will soon.Best wishes,Marywrittenyet精選課件精選課件30Listen to this interview and choose the correct answers.精選課件精選課件31(1) The astronaut jo

21、ined NASA _. a) four years ago b) six years ago c) seven years ago (2) The astronaut has flown in a spacecraft _. a) once b) three times c) four times精選課件精選課件32 (3) The astronaut has been to the space station _. a) once b) twice c) ten times(4) The astronaut has been seen_. a) the Earth from the spa

22、ce station b) the moon from the space station c) the Earth from the moon精選課件精選課件33 (5) When he was on the space station the astronaut thought about his family _ a) all the time b) several times c) from time to time 精選課件精選課件34solar systemMilky Way SPACEmissionunmannedspace shuttleastronaut exploreWor

23、d mapdiscoverfindspacecraftgalaxySpace stationdiscover find galaxy spacecraft space station精選課件精選課件35Individual activityExercise Check Answers精選課件精選課件36 Many students like writing a _ every day.2. Most of the children dont want o tell _ to their parents. 從方框中選擇適當的單詞并用其正從方框中選擇適當的單詞并用其正 確形式完成句子。確形式完成句

24、子。even real secret twice diarydiarysecrets精選課件精選課件373. Have you been to Shanghai _? Yes, I have. 4. Are there any Spidermen in the _ world?5. Now the air in our hometown is _ worse than it was before. So we must do something to stop it.twicerealeven精選課件精選課件38 Peter, have you finished your homework?

25、Yes, Miss Lin. Ive _ finished it.2. What are you going to do this Sunday? I havent decided _. 3. Shall I tell Sally about it? No, you neednt. Ive told her _. 用用already，yet 和和just完成句子。完成句子。justyetalready精選課件精選課件394. Mr Smith phoned you _ now. He asked you to call him back.5. Have you read the book Wh

26、o moved my cheese? Yes, I have _ read it several times.6. Have you visited Mountain Tai _? Yes, I went there last week.alreadyyetjust 精選課件精選課件401. Wheres Uncle Black? I cant find him. He _ _ (go) to Sichuan to help people in a disaster area (災區災區).2. _ you ever _ (eat ) Beijing roast duck? Yes. Its delicious. 3. I have _ _ (not see) Water Margin (水滸水滸) . Really? I _ (see) it yesterday.III. 用括號內所給動詞的適當形式完成句子。用