1、廣東省惠州市惠東縣惠東榮超中學高中英語 Unit 4 Using language學案 新人教版必修3學習目標:1. To be able to read the passage by skimming and scanning.2. Master the important words and expressions in this period. 重點: Be able to use the important words and expressions in this period flexibly.課前預習案Previewing Case 使用說明及學法指導：1. 自我學習課本30-3

2、1頁里的內容，完成預習案。 2. 完成時間25-30分鐘。Task1 Write down the words and expressions according to the following Chinese meaning.I. 單詞鞏固1. v. 碰撞，墜落_ 仍是，剩下_ 允許_ 減少，減輕_浮動，漂浮_ 2. n. 生物學_ 衛(wèi)星_ 物理學家_ 拉力，牽引力_重力_ 氣候_ 宇宙飛船_ 3. adj. 極大的，強有力的_ 幸運的，好運的_溫和的；文雅的_ II. 短語記憶1. 擋?。ü饩€）_ 2.連鎖反應_ 3. 第一次_ 4.依靠，依賴于_ 5. 感到高興_ 6. 既然_7. 熟

3、悉，掌握_ 8. 爆發(fā)_ Task 2 Read the passage on Page 30-31 and summarize the main idea: Last month I visited the moon with my friend. Before we left, I was told the force of would change times on our journey. Then we took off. As we left the earth, I became very ,but gradually the weight . When I was in spa

4、ce, it . We weightlessly in the cabin and I . When I was on the moon, I was surprised to find even walking needs lots of practice gravity has changed. Returning to the earth was very . We were amazed to watch fire on the outside of the spaceship.課堂探究案 Exploring CaseStep 1: Reading ComprehensionFast

5、ReadingMatch the three ways in which gravity changed(1) Left the earth A. It became very light.(2) In space B. The gravity became very strong.(3) On the moon C. The gravity disappeared.Match the weight changed(1) Left the earth A. He is weightless.(2) In space B. He weighs less than on the earth.(3)

6、 On the moon C. His weight is normal. Careful ReadingRead the text carefully and choose the best answer:1. The passage is mainly about _? A. introduction of the moon B. the gravity that I felt on my way to the moon C. my visit to the moon D. my friend Yanping, an Astronomer2. According to the text,

7、we know that the force of the gravity would change _ times. A. 2 B. 3 C. 4 D. 53. When did the author feel strongest of the gravity of the earth?A. On the moon. B. On the half way to the moon.C. At the very beginning D. On their leaving from the moon4. What causes the writer to feel that he becomes

8、weightless on the moon? A. Spaceship B. Gravity C. His friend D. His Good feelings of the moon5. From the text we can know if a man grows up on the moon, _. A. he will grow taller than on the earth B. he will grow shorter than on the earth C. he will become fatter D. he will become weightlessRead th

9、e text carefully again and fill in the blanks.Periods Details On leaving the earths atmosphere(Para 2)l With the rocket rising into the air, we were into our seats because of the strong of the earths gravity.l The lessened as we moved far away from the earth.l When getting closer to the moon, we fel

10、t pulled by ,but it was not as strong as the earths.While landing on the moon(Para 3)l We weigh than on the earth.l While trying to step forward, I found I was carried as far as on the earth.l It took a bit of to walk on the moon.When leaving the moon(Para 4)l Leaving the moons gravity was less than

11、 leaving the earths.l Returning to the earth was very because fire broke out on the outside of the spaceship as the earths gravity .l We were pushed hard into our seats again when we came back to land.Step 2: Language Points1. When we get closer to the moon, we shall feel its gravity pulling us but

12、it will not be as strong a pull as the earths. 當我們更接近月球時, 就會感到月球的引力在拉我們。但是, 月球的引力不像地球的引力那么大。The school is close to the post office.get close to 指 變化be close to 指 as strong a pull as the earths 像地球的引力那么強大歸納：as+adj./adv.+as as+adj.+a/an+n.+as 表示：_1)He is as good a director as he is an actor. 2)He (和我游

13、得一樣快)。3)She is (當演員和當歌手都一樣出色)。2. I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.我立刻感到高興起來，由于失重我在太空艙里飄來飄去，我望著地球越來越小，而月球越來越大。 cheer up: 1） _（人群歡呼起來） when they saw the team arrive.2）他帶她去聽音樂會來使她高興。 .3. But when I trie

14、d to step forward, I found I was carried twice as far as on the earth and fell over. 當我試著向前邁步的時候，我發(fā)覺我被送出去很遠，步子的跨度竟是在地球上的兩倍，因而我摔倒了。The number of students in our school is three times larger than that in theirs.我們學校的學生數(shù)量比他們學校的多三倍。The newly broadened square is four times the size of the previous one. 新

15、擴建的廣場是未擴建時的四倍大。twice as far as _three times larger than _our times the size of _歸納倍數(shù)的表達法：1） 2） 3） 這個房間是那個房間的三倍大。1） 2） 3） 4. . “walking does need a bit of practice now that gravity has changed.” .既然引力改變了，走路也的確需要練一練了。 now that 表示 ，同since相似，語氣較弱，強調人們已知的事實。1） Now that youve grown up, you can decide it y

16、ourself. 2） 既然你有機會，就應該好好利用它。 5. After a while I got the hang of it and we began to enjoy ourselves. 過了一會，我才掌握了走路的訣竅，這才開始感到自如了。got the hang of: 1） Ive been trying to this new typewriter. 我一直想掌握這部新的打印機的用法。2） 現(xiàn)在我已經掌握了這個詞的用法了。_ Step 3 訓練案:根據(jù)括號內的提示翻譯下列句子。1. 老師幽默的講話讓我們很振奮, 之后班里的氣氛也輕松起來。(atmosphere; cheer

17、up)_ 2. 既然我們已經完成了設計, 就該由公司來進行建設了。(now that; in ones turn) _ 3. 讓我們十分失望的是, 戰(zhàn)爭最終在那兩個國家之間爆發(fā)了。(to ones disappointment; break out) _ 4. 長江差不多比珠江長兩倍。（倍數(shù)表達法） _語法填空：Last month I made a trip into space with my friend Li Yanping. We visited the moon in our spaceship. Before we left, Li Yanping explained _ me

18、that the force of gravity would change three times on our journey and _ the first change would be the most_( power). Then we were off. As the rocket rose slowly into the air we began to feel _ pull of the earth, which is _ we called gravity. At first it pushed us _ hard back into our seats that we c

19、ould not say anything to each other. _(gradual) the weight lessened and I was able to talk to him. _ we got closer to the moon, we felt its gravity pulling us but it was not as strong a pull as the earths. I cheered up immediately and floated_(weight) around in our spaceship cabin_(watch) the earth

20、become smaller and the moon larger. B3U4-5 參考答案課前預習案Task1 I. 單詞鞏固3） crash；remain；allow；reduce；float4） biology；satellite;physicist;pull;gravity;climate;spaceship5） powerful;lucky;gentleII. 短語記憶block out;chain reaction;for the first time;depend on;cheer up;now that;get the hang of;break outTask 2Gravi

21、ty;three;heavy;lessened;disappeared;floated;cheered up;now that;frightening;break out.課堂探究案Step 1Fast ReadingMatch the three ways in which gravity changed(1) Left the earth A. It became very light.(2) In space B. The gravity became very strong.(3) On the moon C. The gravity disappeared.Match the wei

22、ght changed4） Left the earth A. He is weightless.5） In space B. He weighs less than on the the earth.6） On the moon C. His weight is normal. 1-5 CBCBA Read the text carelly again and fill in the blanks. pushed back;pull;weight;the moons gravity;less;twice;practice;painful;frightening;increasedStep 21. 接近;距離;接近;狀態(tài);像A一樣;(4) 他當導演像當演員一樣出色。(5) swims as fast as I(6) as good an actress