人教新起點一年級英語下冊課件Unit154

1、Make up new dialogs in pairs according to the one in 1. You can suppose theres something wrong with your bike, telephone or TV.,1. happen =(take place) vi. 引起，發(fā)生。e.g. Accidents will happen.很有可能會發(fā)生意外。 What happened when you told him the news? 你告訴他這消息時, 他有何反應(yīng)?happen to sb . 發(fā)生在某人身上,Language points,A c

2、ar accident happened to her this morning. 今天早晨她出了車禍。 happen to do 碰巧，恰好，偶然 例句： “How did he happen to do that? “他怎么會干那個的?” We happen to hold the same view.,2. ask sb. for sth. 向要求，請給予例句: Everybody was now asking him for advice. 所有的人都在請求他給予意見。 ask sb. for help. 向某人求助。 I will ask you for help when I ne

3、ed. 我需要時我會向你求助的。,3. press vt. 壓；按；撳；扳。 例句: Press this button to start the engine.要開動發(fā)動機就按這個按鈕。,4. useless adj. 無用的；沒好處；不起作用。 例句: Its useless to argue with them. 同他們爭論是沒有用的。 反義詞為 useful,useful adj. 有用的 She is a useful person to know. 她是個應(yīng)該結(jié)交的有用的人。,homeless adj. 無家可歸的 例句: He was homeless, so we took h

4、im in. 他無家可歸, 我們就收留了他。 -less 是形容詞的后綴，表示“沒有， 無”的意思。,Grammar focus,Certainty and uncertainty,仔細(xì)觀察下面的例句，然后補全結(jié)論部分所缺的內(nèi)容。,A. Im sure of his honesty. B. Im sure (that) smoking is bad for our health. C. Are you sure (that) he lives happily? Yes, Im sure about it. D. Hes not sure whether / if they will take

5、part in the football game. E. Im not sure why he wants it.,從例句A、C中我們發(fā)現(xiàn)，be sure常常和介詞1_或2_連用。從例句B、C中我們發(fā)現(xiàn)，be sure在肯定句或疑問句中，后面常常接3_引導(dǎo)的從句，此連接詞可以省略。從例句D、E中我們發(fā)現(xiàn)，be sure在否定句中，后面常常接4_或5_、疑問代詞或疑問副詞引導(dǎo)的從句。,of about,that,if whether,請將下列漢語句子翻譯成英語。 1. 你確定他們今天能來嗎？ _ 2. 我不確定她現(xiàn)在是否在圖書館。 _ _ 3. 我確信將來你會成為一名歌唱家。 _,Are yo

6、u sure that they can come today?,Im not sure if/ whether she is in the library now.,Im sure that you will be a singer.,sure的用法,sure一詞在中學(xué)英語中是一個常見的詞，但你對它的用法掌握了多少呢？ 1. 用作形容詞 1) 常用于be sure of, be sure to do, be sure that結(jié)構(gòu)中。,例如： You may be sure of his honesty. /You may be sure that he is honest. 你可以確信他的

7、誠實。 Im sure of winning the game. 我有把握能贏得比賽。 He is sure to be back soon. 他一定會很快回來。 Be sure not to forget it. 千萬別忘了。,be sure of 與be sure to do的區(qū)別： be sure of 和be sure that一樣，主語是人，主語感到“有把握；確信”； be sure to do的主語可以是人，也可以是物， 表示說話人推測“一定；必然會”。,例如： He is sure of his success. /He is sure that he will succeed.

8、 他確信他會成功。 He is sure to succeed. 他一定會成功。(說話人的看法),2)make sure of/ make sure about /make sure that /make sure to do有“弄清楚；查明”之意。例如： She made sure that she turned off the light. 她確定她已關(guān)燈了。 Make sure to lock the door before you go out.出去之前一定要鎖上門。,另外，常見的與sure相關(guān)的短語還有：be sure of oneself 有自信心，for sure的確；確實地。

9、2. 用作副詞 主要用于口語，此時的“Sure.”相當(dāng)于“Of course.” 與“Certainly.”。,Fill the blanks with (be sure to/be sure of).,1) He _ take good care of himself. 2) I _ taking good care of himself.,is sure to,am sure of,Recite the useful expressions in 3b. And finish 4 with your teacher.,表示推測的情態(tài)動詞部分用法,肯定的推測 must, should, ma

10、y (might) 或 could（一般不用can) 其中，must的語氣最強，譯為“一定，準(zhǔn)是，想必是”；may(might) , could的語氣最弱，譯為“也許”、“可能”。,如： The computer doesnt work. There must be something wrong with it. 這臺計算機開不了機。一定是有什么毛病了。 It should be fine tomorrow. 明天很可能天晴。,If you look at the moon, you may/might have many questions to ask. 如果你看看月亮，或許會有許多問題

11、要問。 This project could create 5,000 new jobs. 這項新工程可能給5千人帶來新工作。,否定的推測 表示可能但不是肯定無疑時，常用should not(恐怕不會) ，或用may not, might not或could not，譯為“可能不，也許不”；否定語氣較強時，則用cant或couldnt，譯為“不可能”。,如： Dont worry, your father may not have been hurt seriously. 別急，你父親也許傷得不厲害。 He might not be in England. 他或許不在英國。,There shouldnt be any diffic