【正文】
初二英語時態(tài)大練兵(一)人教版(新目標(biāo))【本講教育信息】一. 教學(xué)內(nèi)容:時態(tài)大練兵(一)同學(xué)們好!今天要講的時態(tài)大練兵涉及到一般現(xiàn)在時和一般將來時。首先我們來復(fù)習(xí)一下這兩種時態(tài)。[教學(xué)過程]一. 一般現(xiàn)在時:1. 概念:表示經(jīng)常性或習(xí)慣性的動作。常和always, usually, often, sometimes, hardly, ever, never, every week, once a week 等表示動作頻率的詞連用。2. 構(gòu)成:當(dāng)主語是第三人稱單數(shù)時,謂語動詞要用第三人稱單數(shù)形式,即:主語(三單)+V三單。其它人稱或復(fù)數(shù)作主語時,動詞用原形。即主語+V原形。 eg: ①I do exercise every week. ②He does exercise every week. 3. 在一般現(xiàn)在時的否定句和疑問句中要用到助動詞do或does,助動詞后加動詞原形。否定形式為don’t 或doesn’t。 eg: ①Tom does homework every evening. 否定句:Tom __________ homework every evening. 疑問句:__________Tom __________ homework every evening? Yes, he __________. No, he __________. 特殊疑問句:__________ __________ Tom __________ every evening? ②The boys play football twice a week. 否定句:The boys __________ football twice a week. 疑問句:__________ the boys __________ football twice a week? Yes, __________. No, __________. 特殊疑問句:__________ do the boys __________ football? 4. 動詞第三人稱單數(shù)形式的變化規(guī)則: ①以o結(jié)尾的動詞,在詞尾直接加es,讀/z/。eg: do, go②以ch,sh結(jié)尾的動詞,在詞尾加es,讀//。eg: watch, wash, brush, finish ③以輔音字母加y 結(jié)尾的動詞,先變y為i,再加es,讀/z/:fly _________, study _________, cry_________④除了上述三種特殊情況,其它形式的動詞只需在詞尾加s。讀音分三種情況:清輔音后面讀/s/:shop,