英語(yǔ)七年級(jí)下冊(cè)Unit5-語(yǔ)法專(zhuān)項(xiàng)課件(why的用法)(新人教版)

1、Unit5 語(yǔ)法專(zhuān)項(xiàng)課件語(yǔ)法專(zhuān)項(xiàng)課件 （why的用法）的用法） 初中英語(yǔ)人教版七年級(jí)下冊(cè) why的用法1 why是疑問(wèn)副詞，意思是“為什么”，用來(lái)詢(xún)問(wèn)原因、 理由，一般由“Why + 一般疑問(wèn)句”構(gòu)成特殊疑問(wèn)句。 why的用法1 Why does he like this subject? Why is she here? why的用法2 why引導(dǎo)的特殊疑問(wèn)句，一般由because引導(dǎo)的狀語(yǔ)從 句來(lái)作答。because是連詞，意為“因?yàn)椤保浜笠?接一個(gè)句子來(lái)陳述原因、理由。 why的用法2 Why dont you like English? Because its difficult.

2、Why do they want to go to China? Because they want to learn Chinese. why的用法3 Why not do sth？=Why dont/didnt you do sth? 意為“為什么不做某事？”，用于提出建議、 征詢(xún)意見(jiàn)。根據(jù)具體場(chǎng)景來(lái)答復(fù)對(duì)方。 why的用法3 Why dont you go to the zoo with us? Sounds great./Good idea. why的用法4 why相當(dāng)于“whatfor”，回答時(shí)用because后接表示 原因的句子，because of后接名詞、代詞或詞組。 why的

3、用法4 What do you open the window for? = Why do you open the window? Because we need more fresh air. 易錯(cuò)點(diǎn)1 Why are you late again? Because there is something wrong with my bike. because?；卮饂hy引導(dǎo)的疑問(wèn)句；as，since語(yǔ)氣較弱， 不回答why引導(dǎo)的問(wèn)句。 易錯(cuò)點(diǎn)2 because和because of有區(qū)別。because后面要跟從 句，而because of后面跟名詞、代詞或短語(yǔ)。 He is late f

4、or school because it rains heavily. He is late for school because of the heavy rain. 【典例1】_ does your cousin usually go to work on foot? He says its good for his health. A. Where B. When C. Why D. How 考查疑問(wèn)詞。句意：為什么你堂弟經(jīng)常步行上 班？他說(shuō)，那對(duì)他身體好。答句表示的是原因， 故應(yīng)選用why來(lái)提問(wèn)。 【典例2】Why not _ to the park now? Good idea! Lets go. A. go B. to go C. goes D. going 考查why的用法。句意：為什么現(xiàn)在不去公園呢？ 好主意，我們走。why not表建議，后跟省to動(dòng)詞不 定式，選A。 【典例3】Why not go to Lao She Teahouse tonight? _. A. It doesnt matter B. Thank you C. Sorry to hear