河南省2019届中考英语总复习第16课时九上Unit4课件仁爱版.pptx

第16课时 九年级上册 Unit 4,考点一 weigh的用法 【课文原句】 So a person who weighs 90 kilos on earth weighs only 36 kilos on Mars. 所以一个在地球上重90千克的人在火星上只重36千克。(九上P93) weigh是不及物动词，意为“称；称重量；重”。weigh的名词形式为weight，意为“重量”。常见短语lose weight意为“减肥”。,When did you weigh last time？你上次是什么时候称的体 重？ It is about 20 kilos in weight.这东西重约20千克。 My sister is trying to lose weight.我姐姐正在设法减肥。,考点二 search for的用法 【课文原句】 Scientists are still searching for more information about Mars.科学家们仍然在寻找更多关于火星的信息。(九上P93),search for意为“搜寻，寻找”，后面跟具体的目标。 We are on the way searching for truth.我们在探求真理的路上。 She searched for her lost cat everywhere, but failed.她到处寻找走失的猫，但没找到。,【注意】 search用作及物动词，后跟“人”时，意为“搜身”；后跟地点名词时，表示“对某地进行搜查”。 The policemen searched everyone at the party.警察对参加聚 会的每个人都进行了搜身。 He searched his pockets, but found nothing.他翻遍了自己的 口袋，什么也没找到。,完成句子 1To prepare for the speech, he _(搜寻) the Internet and made some notes.,searched for,考点三 doubt的用法 【课文原句】 There is no doubt that computers are very useful in technology and business.毫无疑问电脑在科技和商业上很有用。(九上P101) (1)doubt作动词，意为“疑问”，肯定句后可接if或whether引导的从句，否定句及疑问句后接that从句。,I doubt if/whether she will come back tomorrow.我怀疑她明天是否回来。 I dont doubt that she will come back tomorrow.我毫不怀疑她明天会回来。,(2)doubt作名词，意为“疑问；疑惑”。常见搭配： without doubtThere is no doubt that.“毫无疑问”； in doubt“疑惑”。 Without doubt your choice is best.毫无疑问你的选择是最好的。 To be honest, Im in doubt where to go in summer holiday. 说实话，我不知道暑假去哪里。,考点四 connect的用法 【课文原句】 The whole world is connected整个世界都被联系起来。(九上P101) (1)connect作动词，意为“连接，把和连接起来”。 The two towns are connected by the railway.那两座城镇由铁路连接了起来。,(2)connect with意为“和有关，和有联系”。 He is connected with the murder.那件谋杀案和他有关。 We havent connected with each other for a long time.我们很 长时间没联系了。 【拓展】 connect to意为“把连接到”。 Please connect the computer to Internet.把电脑连到因特网上。 Theyll connect the phone to your room.他们会把电话接到你房间去的。,考点五 warn的用法 【课文原句】 One scientist warns that if robots start to think for themselves，they will no longer want to be our servants，but our masters .一位科学家警告说，如果机器人开始自己思考，他们将不再想要做我们的仆人，而是我们的主人。(九上P103),warn是动词，意为“警告；告诫”。 warn sb. (not) to do sth.警告某人(不要)做某事 warn sb. about/of sth.警告某人某事 The teacher warns us not to swim in the river.老师警告我们不要在河里游泳。 I warned him about/of the danger.我警告他有危险。,用括号内所给单词的适当形式填空 2The road was closed to traffic after the accident, and the police warned people _ (not go)