《九年級(jí)英語(yǔ)全冊(cè) Unit 12 Life is full of the unexpected 第2課時(shí)(Section A Grammar Focus-4c)課件 (新版)人教新目標(biāo)版》由會(huì)員分享,可在線閱讀,更多相關(guān)《九年級(jí)英語(yǔ)全冊(cè) Unit 12 Life is full of the unexpected 第2課時(shí)(Section A Grammar Focus-4c)課件 (新版)人教新目標(biāo)版(6頁(yè)珍藏版)》請(qǐng)?jiān)谘b配圖網(wǎng)上搜索。
1、第2課時(shí)(Section A Grammar Focus4c)單 詞sound點(diǎn)撥辨析sound 用作名詞,意為“聲音;聲響”。sound, voice 與 noisesound 含義廣泛,指一切可以聽(tīng)到的聲音,包括有意聽(tīng)到的和無(wú)意聽(tīng)到的。voice 指說(shuō)話及唱歌的聲音,多用于指人的嗓音。noise 特指噪音和吵鬧聲。如:At midnight he heard a strange sound. 半夜里他聽(tīng)到一種奇怪的聲音。The noise of traffic kept me awake.交通的噪音使我睡不著。The girl has a beautiful voice.這個(gè)女孩有美麗的嗓
2、音。短 語(yǔ)1wait in line with點(diǎn)撥wait in line with 意為“與排隊(duì)等候”。line 在此句中為名詞,意為“隊(duì)”,此詞還有“線條”的意思,另外 line還可作動(dòng)詞,意為“排隊(duì)”。如:Please line up one after another.請(qǐng)按順序排隊(duì)。鏈接stand in line 站成一排cut in line 插隊(duì)2find out點(diǎn)撥find out 意為“找出,查明,弄清楚”,后可接名詞、名詞性短語(yǔ)或賓語(yǔ)從句。辨析find out, look for 與 find(1)find out 強(qiáng)調(diào)經(jīng)過(guò)調(diào)查、詢問(wèn)、研究等曲折過(guò)程后才能找出。如:Pleas
3、e find out when the train leaves. 請(qǐng)查明火車什么時(shí)間離開(kāi)。(2)look for 意為“尋找”,強(qiáng)調(diào)尋找的過(guò)程。如:Im looking for it everywhere.我正在到處找它。(3)find 意為“發(fā)現(xiàn),找到”,強(qiáng)調(diào)尋找的結(jié)果。如:I cant find my pet dog.我找不到我的寵物狗。語(yǔ) 法過(guò)去完成時(shí)點(diǎn)撥過(guò)去完成時(shí):表示過(guò)去某一時(shí)間或某一動(dòng)作之前發(fā)生、完成的動(dòng)作或存在的狀態(tài),即過(guò)去的過(guò)去。其結(jié)構(gòu)為:助動(dòng)詞 had (用于各種人稱和數(shù))過(guò)去分詞。表示過(guò)去某一時(shí)間之前可用 by, before 等構(gòu)成的短語(yǔ),也可用 when, befor
4、e 等引導(dǎo)的時(shí)間狀語(yǔ)從句或者通過(guò)上下文邏輯關(guān)系來(lái)表示。如:By the time we arrived at the airport, the plane had taken off.當(dāng)我們到達(dá)機(jī)場(chǎng)時(shí),飛機(jī)已經(jīng)起飛了。When I got there, they had already started playing football. 當(dāng)我到那兒時(shí),他們已經(jīng)開(kāi)始踢足球了。He told me he had got the answer to the question.他告訴我他已經(jīng)知道了問(wèn)題的答案。注意:如果兩個(gè)動(dòng)作緊接著發(fā)生,特別是在包含 before 和after 的復(fù)合句中,就常常不用過(guò)去完成時(shí)。因?yàn)檫@時(shí)從句的動(dòng)作和主句的動(dòng)作發(fā)生的先后順序已經(jīng)非常明確,這時(shí)可以用一般過(guò)去時(shí)代替過(guò)去完成時(shí)。如:We played football after we finished our homework.完成作業(yè)后我們踢足球。