高中英語 Unit 4　Astronomy the science of the stars Language points課件 新人教版必修3.ppt

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Period 2 Language points,To the speaker: Confidence; Fluency; Accuracy!,To the audience: Attention; Interaction,English speech,Learning aims,1. Master the usages of such important words and expressions as: exist, puzzle, in time, in one’s turn, prevent …from, cheer up, break out, watch out etc; learn to express yourself by using them. 2. Learn the method of constructing knowledge trees through self-study and cooperative exploration. 3. Enjoy the fun of expressing yourself using English and participate in class with a strong passion.,For groups: 抓住自學，討論，展示，點評環(huán)節(jié) 爭創(chuàng)“優(yōu)秀小組” For members: 認真落實各項任務,,Self-directed study,words: 1. exist: vi. 存在; 生存 (1) exist in 存在于…. (2) exist on 靠為生 (3) there exist. 某地存在(4) come into existence 開始存在；成立 2. puzzle n. 迷；難題 vt.&vi. （使）迷惑； （使）為難 (1) puzzle over 冥思苦想；苦苦思索 (2) be puzzled about 對……迷惑不解 (3) puzzling adj. 令人迷惑的 puzzled adj. 感到迷惑不解的 phrases: 1. in time 及時；終于 in time for sth. 趕上某事 on time 按時；準時 in no time 立即；馬上 at no time 從不；絕不 2. in one’s turn 輪到某人；接著 (1)In turn 反過來，轉(zhuǎn)而；依次；輪流；逐個 (2)Take turns to do sth. =take turns doing sth. 輪流做…… (3) It is your turn to do sth 輪到某人做某事,Special attention,3. prevent +賓語+(from)/stop+賓語+(from)/keep +賓語+from 阻止……干某事 4. cheer up (使) 感到高興；(使) 感到振奮 cheer sb. on (賽跑比賽中)以喝彩聲鼓勵某人；為某人加油 cheerful adj. 快樂的；高興的 5. break out/ take place/happen break out意思為“發(fā)生、爆發(fā)”，常指戰(zhàn)爭、災難、疾病或者爭吵等事件的發(fā)生，也可以表示突然大聲叫喊等。 take place 指某事按照計劃進行或者按照計劃發(fā)生，此外還有“舉行”之意. happen一般用于偶然或突發(fā)性事件. break away from逃脫；脫離 break down 出故障；垮掉 break in 強行進入；打斷 break into 強行闖入；突然開始 break off 斷開；中斷；停頓 break through 突破；沖破 break up破碎；解散；分手,6. watch out 密切注視；當心；提防 watch out for sth. 留意 watch over 照顧；監(jiān)督；保護,I 自主學習成果檢測答案: 1. be existed 改為exist 2. prevented 后加from 3. was broken 改為broke 4. puzzling; puzzled 5. in turn 6. Watch out for,Check the answer,,質(zhì)疑體現(xiàn)了一個人的水平和思維的深度,,Question & answer about Grammar,,Crazy English,Recite the usage of the language points and the sentences crazily. 2. The group leaders control the time and process.,,訓練目的：靈活運用所學知識點，學會運用實際操練的方法感悟 語言知識并在運用中體驗英語表達之美。,Practice and presentation,Challenge I 1. 只要不放棄，你總有一天會成功的。 2.We should try our best to prevent the river from being polluted. 3. Passengers were warned to watch out for thieves. 4. (1) broke into (2) break away (3) break down (4) break in (5) broke out (6) break through (7) breaking up 5. B 6. D 7. C 8. A,Check the answer,,請你用上本節(jié)課所學知識的任意幾個， 描述你某次旅行。,,in time, in one’s turn, cheer up, prevent… from, break out, watch out.,Walk into life,Review what we have learned,,Consolidation,Summary & Advice from our English monitor:,What did we have learnt? What to do after class to be better? The best groups and students.,Thank you,