六年級英語Sea water and rain water教案

1、module 3 the natural world一、教學(xué)內(nèi)容：unit 9 sea water and rain water (一) 掌握詞匯、短語(二) 重要句型(三) 介詞under, for, by的用法(四) 連詞if的用法(五) 情態(tài)動詞can的用法 二、知識總結(jié)與歸納(一) 掌握詞匯、短語1. quarter2. competition3. ocean4. earth5. wonderful6. whale7. dangerous8. stream9. almost10. cover11. plant12. oil13. salt14. nothing15.

2、 without16. borrow17. dish18. shower19. fix20. save21. waste22. take a shower23. brush ones teeth24. be important to25. save water26. one of27. rather than28. as well29. three quarters of30. turn off31. usefor(二) 重要句型1. if there is no rain, there will be no water to drink.2. what do we use water for

3、?3. we use water for showering.4. how can we save water?5. we can save water by fixing dripping taps.6. sharks are one of the most intelligent animals.(三) 介詞under, for, by的用法under的用法:在下面edna sat very still under the trees.he had a picture book under his arm.在(管轄, 照顧等)之下nearly fifty workers are worki

4、ng under the manager.we learned a great deal under his teaching.不到, 少于all the children here are under seven.under 100 people are present for the show. 在的過程中, 正在經(jīng)受i cant use my office at present; it is under repair.the subject is under discussion.根據(jù)(協(xié)議, 法律等)the soldiers acted under orders.詞組和固定搭配: un

5、derconditions在情況下; under the care of在的照顧下; under the influence受到影響for的用法:為了he would do anything for her.the money is for buying food for the party.因為, 由于france is famous for its wines.i am so sorry for what i said to you the other day.對于you are too old for the kind of work you are doing.供用的, 給的there

6、 is no more room for such a bag at the back of the car.here is your letter for you.就來說, 作為來說the weather was very cold for the time of the year.表示買賣或交換關(guān)系nobody is willing to work for nothing.i sold the house for 100 dollars.作為(意思接近as)most of the rooms of this building are used for offices.i had meat

7、for supper.前往(某目的地)i will leave for shanghai tomorrow.表示時間長度或距離for miles and mile you see nothing but trees.贊成, 主張, 支持most people in the town are for the plan of the government.詞組或固定搭配: for certain / sure肯定地, 確切地, 有把握地; for fear of唯恐, 擔(dān)心; for oneself為自己, 替自己; for sale供出售; for short簡稱; for the purpos

8、e of為的目的; for the moment一時間, 暫時; for the present就現(xiàn)在來說, 暫時; for the time being暫時; takefor認(rèn)為是; 把當(dāng)作by的用法在旁邊, 從旁邊(經(jīng)過)i put the vase back on the table by the window.通過, 經(jīng)由, 取道he rose quickly and went out by another door.在(某時)前, 到時為止by next friday i will have finished the work.i will be back by three.表示動作

9、的執(zhí)行者h(yuǎn)ave you read that novel by shirley?表示手段或方式, 可譯為 “通過, 用, 以, 按照”it is nine oclock by my watch.表示工具i came here by bus.she called him up by telephone to thank him.和seize, take, hold等動詞連用, 說明接觸身體的哪一部分he took the child by the hand.(指數(shù)量)按計算these workers are paid by the week.i rent the house by the yea

10、r.表示數(shù)量增減或差別的程度he is older by five years than john.表示尺寸, 距離等, 相當(dāng)于 “乘以”i want a piece of paper 3 inches by 5 inches.this room is forty feet by twenty.詞組和固定搭配:by accident偶然地; by chance偶然地, 碰巧; by means of借助于, 靠; by mistake出于誤會, 弄錯了; by oneself單獨地, 獨立地; by the way順便說; by turns輪流; learn by heart記熟; one b

11、y one一個接一個地; little by little一點點地; side by side并肩地, 并排地(四) 連詞if的用法1. (表示條件)如果，主句用將來時，if從句用現(xiàn)在時表示將來he will come if you invite him.如果你請他,他會來的。2. (表示虛擬)假如,要是1）時態(tài)：可以表示過去，現(xiàn)在和將來的情況。它的基本特點是時態(tài)退后。句型：條件從句 主句一般過去時 should( would) +動詞原形if they were here, they would help you.2）表示與過去事實相反的假設(shè)。句型：條件從句 主句過去完成時 should(w

12、ould) have+ 過去分詞if she had worked harder, she would have succeeded.if he had come yesterday, i should / would have told him about it.3）表示對將來的假想句型： 條件從句 主句一般過去時 should+ 動詞原形were+ 不定式 would + 動詞原形should+ 動詞原形if you succeeded, everything would be all right.if you should succeed, everything would be all

13、 right.if you were to succeed, everything would be all right.3. 是否 = whether 連接賓語從句i wonder if she is ill.不知她是否病了。(五) 情態(tài)動詞can的用法can表示說話人的主觀看法或語氣它沒有人稱和數(shù)的變化,也不能單獨在句子中作謂語,但它可以與其后的不帶 to 的動詞不定式一起構(gòu)成動詞性復(fù)合謂語其基本用法如下:1. 表示能力,常被譯成“能”“會”例如: her sister can speak english. 她姐姐會講英語i can sing english songs. 我會唱英語歌曲2

14、. 表示請求或許可,即常被用來請求對方的許可,或表示說話人自己的許可例如: can i help you? 我能幫你忙嗎? can you go to the picnic with us tomorrow? 明天你能和我們一起去野餐嗎?you can sit here. 你可以坐在這兒3. can 的否定式和疑問式 can 的否定形式是 cannot 或 can not,其縮略形式是 cant例如: lucy cant find her story-book. 露茜找不到她的故事書了han mei cant come to play with us because she is going to the movies. 韓梅不能來和我們玩了,因為她要去看電影 將含 can 的陳述句變?yōu)橐蓡柧鋾r,應(yīng)直接將 can 移到主語前面肯定答語為“yes, 主語 + can.”,否定答語為“no, 主語+ cant.”例如:can you see the words on the blac