2022年高中英語 Unit 2 Protecting Our Home Period four導(dǎo)學(xué)案 重慶大學(xué)版選修6

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1、2022年高中英語 Unit 2 Protecting Our Home Period four導(dǎo)學(xué)案 重慶大學(xué)版選修6 1．vt.（1）warn sb. of/about sth. 提醒、警告某人注意某事 （2）warn sb. not to do sth. 警告某人不要干某事 =warn sb. against doing sth. （3）warn that clause 提醒某人... vi.（4）warn against doing sth. 告誡某人不要做某事 They warned him of the danger. 他們警告他有危險。 He warned m

2、e not to go out alone at night. =He warned me against going outside alone at night. = He warned that I couldn’t go outside alone at night. 他提醒我晚上不要單獨出去。 The manager warned against smoking in the building. 經(jīng)理告誡說不準(zhǔn)在大樓內(nèi)抽煙。 2．（1）base on “以……為根據(jù)/基礎(chǔ)”，用法應(yīng)是 base A on B如： Edison based his idea

3、s on scientific experiment. 愛迪生的想法是建立在科學(xué)實驗的基礎(chǔ)上的。 （2）be based on “以……為根據(jù)/基礎(chǔ)”用法是A be based on B ① What he said is based on fact. 他所說的話是以事實為根據(jù)的。 ② The story is based on real life.那故事是根據(jù)現(xiàn)實生活而寫的。 【知識運用】 The TV play, ___________on real life, will be popular among people. A. based B. was based

4、 C. basing D. being based 3．risk （1）名詞 n. 危險,風(fēng)險 He was ready for any risks. 他準(zhǔn)備冒一切風(fēng)險。 （2）at (the) risk of 冒...的風(fēng)險 He saved my life at the risk of losing his own. 他冒著生命危險救了我的性命。 （3）at risk遭受危險 The disease is spreading,and all children under 5 are at risk. 疾病在蔓延，凡5歲以下的孩子都有被傳染

5、的危險。 （4）及物動詞 vt. risk+sth/doing使遭受危險,冒...的風(fēng)險 The brave man risked his life in trying to save the child. 那位勇敢的冒著生命危險試圖救那孩子。 They risked losing their jobs. 他們冒著失去工作的風(fēng)險。 4. depend on/upon （1）依靠，依賴=rely on/upon Children depend on their parents for food and clothing. 小孩依賴他們的父母供給衣食。 （2）由..

6、.而定， 取決于 It depends on the weather whether we can go out for a picnic. 我們是否能去野餐取決于天氣。 （3）It all depends./That depends. 看情況而定 —Can you finish the work before Sunday?你能在星期天前完成這項工作嗎？ — It all depends. 這要看情況而定。 5. protect... against/from sth保護(hù)...不受...的傷害/襲擊 He took an umbrella to protect himsel

7、f against/from the rain. 他帶了一把傘以免淋雨. 【聯(lián)想】prevent... (from) doing 阻止...做某事 =stop... (from) doing =keep... from doing Nothing can prevent him (from) going. 什么都不能阻止他前往。 【區(qū)別】keep... from doing sth 阻止...做某事 keep... doing sth 使...保持狀態(tài), 使...一直進(jìn)行 Sorry to keep you waiting. 對不起,讓你久等了。 【知識運用】 Who prevent their plans from ____________? A. carried out B. carrying out C. to carry out D. being carried out