人教版必修三unit4 atronomy using language

1、What is the earths natural satellite?The moon.（天然衛(wèi)星）（天然衛(wèi)星）Who is the first Chinese astronaut to go into space?So far, how many countries have succeeded in sending people up to space?Which country first sent people up to space?1Yang LiweiThreeA. USA B.the Soviet Union C. China23Armstrong (America, 19

2、69)Who is the first man landing on the moon?What was the date when China launched Change I successfully? A. October 24th,2007 B. November 5th, 2007C. November 22nd,200745spacewalkLook at the pictures! The gravity on the moon is 1/6 as strong as it is on earth. This means that someone who weighs 150

3、lbs(磅磅) on Earth would weigh only 25 lbs on the moon! You might think that this would make walking much easier, but it is actually quite difficult Later in the Apollo(阿波羅阿波羅) (Moon landing) mission, astronauts discovered that it was easier to hop(跳跳) than it was to walk .floatzero gravity/ weightles

4、sTask 2. Skimming1. Who do I have a chance to travel to the moon with ?2. How did we travel to the moon?3. What is the writing form ?4.Whats the writing order in this text?5. How many times would the force of gravity change on our journey? Li Yan Pin , an astronomerBy spaceshipThree times , the firs

5、t timeA travel journal Time orderTime order Before going While visiting After visitingwhenwherewhowhat how1. The force of gravity would change four times on their journey . ( )2. When they were on the moon, they would not feel the gravity because there was no gravity on the moon. ( )3. Since the gra

6、vity has changed, their walk didnt need a lot of practice. ( )4. “A visit to the moon” was not a real story but science fiction .( )5. Their returning to the earth was frightening. ( )FFFTTthree wouldas if did( Para3, L8 ) ( Para2, L9 ) ( Para2, Line1 ) ( Para4, L2 )Detailed reading: 3 timesThe forc

7、e of gravity change 1 change_ as he left2 change_ when he was in space3 change_ when he was on the moonvery strongdisappearedvery lightRead Para 2 carefully and underline 3 sentences that are about the changes of the force of the gravity. (as he left, in space, on the moon)Careful readingOn the moon

8、The change of gravityThe change of gravityIn spaceVery strongVery heavyDisappeared Floated weightlessly Very light Leave the earthScanning1. With the rocket rising into the air, we were _ into our seat because of the strong _ of the earths gravity.2. Gradually the weight _ as we moved far away from

9、the earth. And I _ weightlessly around in our spaceship cabin.3. When getting closer to the moon, we felt pulled by _, but it was not as strong as the earths.pushedpulllessenedfloatedgravitySummary:Last month I visited the moon with my friend. Before we left, I was told the force of g_ would change

10、three times on our journey. Then we took off. As we left the earth, I became very h_. gradually the weight l_. When I was in space, it d_. we f_ weightlessly in the cabin and I c_ _. when I was on the moon, I was surprised to find out even walking needs lots of practice n_ _ gravity changed. The ret

11、urning of the earth was very f_. we were amazed to watch fire b_ _ on the outside of the ship. gravityheavylesseneddisappearedfloatedcheered upnow thatfrighteningbreak out 1. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer.上個(gè)月我有幸得到一個(gè)機(jī)

12、會(huì)同我的朋友，上個(gè)月我有幸得到一個(gè)機(jī)會(huì)同我的朋友，一位宇航員李彥平一道去太空旅行。一位宇航員李彥平一道去太空旅行。 Language points have a chance to do 有機(jī)會(huì)做某事有機(jī)會(huì)做某事 I hope I can have a chance to travel to space. give sb a chance 給某人機(jī)會(huì)給某人機(jī)會(huì) Could you give me one more chance? by chance =by accident I discovered it by chance. 2. When we get closer to the moon

13、, we shall feel its gravity pulling us, but it will not be as strong a pull as the earths. get close to 靠近，接近，指動(dòng)態(tài)變化靠近，接近，指動(dòng)態(tài)變化 be close to 距距.近，指狀態(tài)近，指狀態(tài) The school is close to the post office.家長(zhǎng)應(yīng)該阻止孩子接近火。家長(zhǎng)應(yīng)該阻止孩子接近火。_Parents should prevent children from getting close to fire. “as as ”句式：句式： 和和.一樣一樣

14、as +adj./adv. +as as +adj (+a +可數(shù)名詞單數(shù)）可數(shù)名詞單數(shù)）+as as +adj+(不可數(shù)名詞或可數(shù)名詞復(fù)數(shù)）不可數(shù)名詞或可數(shù)名詞復(fù)數(shù)）+as His bedroom is as clean as his sisters. Youve made as many mistakes as I have.“as as ”句式的句式的否定否定: “ not as/so as”e.g. He can not speak English so fast as a native speaker. as+ adj.+(n.)+ as This film is _that one

15、.這部電影和那部電影一樣有趣。這部電影和那部電影一樣有趣。We should plant trees _.我們應(yīng)該盡可能多種樹(shù)。我們應(yīng)該盡可能多種樹(shù)。This dictionary is _you think.這本字典不如你想象的那樣有用。這本字典不如你想象的那樣有用。 John is _as mike. 約翰和邁克是一樣聰明的學(xué)生。約翰和邁克是一樣聰明的學(xué)生。as interesting asas many as possiblenot as useful asas clever a student 當(dāng)看到當(dāng)看到Beckham，球迷們，球迷們(the fans)歡呼起來(lái)歡呼起來(lái)。 _ _ _

16、 _ when they saw Beckham. 他帶她去聽(tīng)音樂(lè)會(huì)他帶她去聽(tīng)音樂(lè)會(huì)(concert)來(lái)來(lái)使她高興使她高興。 He took her to the concert to _ _ _.Thefanscheeredupcheer her up Cheers! Our football team will compete against the Japanese team this evening. Lets go and cheer them up！ 為某人加油為某人加油 3. I cheered up immediately and floated weightlessly ar

17、ound in our spaceship cabin watching the earth become smaller and the moon larger. 干杯干杯! 1) . A + be + 倍數(shù)倍數(shù)n+ as +形容詞原級(jí)形容詞原級(jí) + as +B4. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. 3). A + be + 倍數(shù)倍數(shù)n +形容詞比較級(jí)形容詞比較級(jí) + than + B A比比B大大(長(zhǎng)、高、寬等長(zhǎng)、高、寬等)n

18、倍倍2). A + be + 倍數(shù)倍數(shù)n + the +名詞名詞 (size, length, width, height, depth, weight, amount) + of + B A是是B的的n倍倍倍數(shù)表達(dá)法：倍數(shù)表達(dá)法：這根繩子這根繩子(rope)是那根繩子的六倍長(zhǎng)。是那根繩子的六倍長(zhǎng)。A=nBA=(n+1)B 考例：考例：Our new library is _ the old one. A. four times as large as B. four times the size C. four times larger D. four times larger than t

19、hat這條河是那條河的五倍寬。這條河是那條河的五倍寬。1._2._3._這塊石頭的重量是那塊石頭的三倍。這塊石頭的重量是那塊石頭的三倍。1._2._3._ 這顆樹(shù)是那顆樹(shù)的四倍高。這顆樹(shù)是那顆樹(shù)的四倍高。1._2._3._This river is five times as wide as that one.This river is four times wider than that one.This river is five times the width of that one. This stone is three times as heavy as that one.This

20、 stone is twice heavier than that one.This stone is three times the weight of that one.This tree is four times as high as that one.This tree is three times higher than that one.This tree is four times the height of that one. 5. . “walking does need a bit of practice now that gravity has changed.now

21、that同同since相似，語(yǔ)氣較弱，強(qiáng)調(diào)人相似，語(yǔ)氣較弱，強(qiáng)調(diào)人們已知的事實(shí)。后跟句子。們已知的事實(shí)。后跟句子。Translation: 既然你已經(jīng)得到這個(gè)機(jī)會(huì)，就應(yīng)該充分利用它。既然你已經(jīng)得到這個(gè)機(jī)會(huì)，就應(yīng)該充分利用它。Now that youve got the chance, you should make full use of it. 7.We watched, amazed as fire broke out on the outside of the spaceship as the earths gravity increased.amazed 是過(guò)去分詞，此處做狀語(yǔ)用是過(guò)去

22、分詞，此處做狀語(yǔ)用 他進(jìn)來(lái)的時(shí)候沒(méi)有人注意到他進(jìn)來(lái)的時(shí)候沒(méi)有人注意到.He came in _ .break out (戰(zhàn)爭(zhēng)戰(zhàn)爭(zhēng),爭(zhēng)吵爭(zhēng)吵,疾病等疾病等)爆發(fā)爆發(fā)unnoticed它與它與happen, take place, come out等詞的用法一樣，等詞的用法一樣，是不及物動(dòng)詞，不能帶賓語(yǔ)，不能用于被動(dòng)語(yǔ)態(tài)。是不及物動(dòng)詞，不能帶賓語(yǔ)，不能用于被動(dòng)語(yǔ)態(tài)。 1) 戰(zhàn)爭(zhēng)爆發(fā)戰(zhàn)爭(zhēng)爆發(fā)The American Civil War broke out in 1861. 2) 發(fā)生爭(zhēng)吵發(fā)生爭(zhēng)吵A quarrel broke out between them. 3) (火災(zāi)火災(zāi))發(fā)生發(fā)生 A fir

23、e broke out in his house last night. My car _ (拋錨拋錨) so I had to walk there. The famous band _ (解散解散) in the end. Thieves _ (闖入闖入) his house last night. The war _ (爆發(fā)爆發(fā)) ten years ago.The enemys defenses were strong but our soldiers _(突破；突圍突破；突圍).broke downbroke upbroke intobroke outbroke through與與b

24、reak相關(guān)的短語(yǔ)相關(guān)的短語(yǔ):I. 選用方框內(nèi)合適的詞或短語(yǔ)，并用其選用方框內(nèi)合適的詞或短語(yǔ)，并用其適當(dāng)形式填空。適當(dāng)形式填空。(其中有一個(gè)多余選其中有一個(gè)多余選項(xiàng)項(xiàng)) 1. Be careful of your _, Tom. Dont eat too much.2. You ought to have a good rest _ youve finished the work. weightnow thatfloat; now that; weight; get the hang of; watch out; pull3. She spent the afternoon _ on her

25、back in the pool.4. It seems difficult at first, but youll soon _ it.5. You have to _ because there are land-mines all over the place.watch outfloatingget the hang of float; now that; weight; get the hang of; watch out; pullII . 用適當(dāng)?shù)慕樵~或副詞填空。用適當(dāng)?shù)慕樵~或副詞填空。1. Come on. Cheer _! Youre not the only one who

26、 failed in the test.2. Since there are many problems that cant be solved, the war is likely to break _.3. Last Saturday, I went on a visit _ the Great Wall with some of my friends.4. Is there anything else you would like me to explain _ you?upouttoto5. Water vapor is lighter, otherwise it would not

27、rise _ the air.6. His grandfather lives in a lonely village which is far _ his house.7. The leaves fall _ the trees and blow about in the autumn wind.8. As a matter of fact, I didnt know him _ ofromfrom / offat9. Make sure that your children can not get close _ pools, lakes and rivers by themselves.10. He wants to give away all his