Unit2Section2Grammar課件滬教牛津版英語七年級上冊

Unit2SchoollifeSection2Exploringandapplyingrules一般現(xiàn)在時(shí)一.定義：示通常性、規(guī)律性，習(xí)慣性、真理性的動(dòng)作或狀態(tài)

二.構(gòu)成：①動(dòng)詞原型

如：Theylikeplaythepiano.

②第三人稱單數(shù)（主語為第三人稱單數(shù)）

如：Hesingswell.三.第三人稱單數(shù)的規(guī)則變化：

①一般情況:加s，如：thinks,learns

②sh/ch/x/0/s結(jié)尾:加es，

如：watches,miss--misses

③輔音字母+結(jié)尾：改y為i再加es，

如：studies,carries

④以o結(jié)尾：加es，如：does,goes①表頻率：always(總是),usually(通常),often(經(jīng)常),sometimes(有時(shí)),

seldom(極少),hardly(幾乎不),never(從不)

如：Heisalwayslate.Iusuallygotoschoolbybus.

注意：頻率副詞的位置（放在be動(dòng)詞，助動(dòng)詞，情態(tài)動(dòng)

詞的后面；放在實(shí)義動(dòng)詞的前面）四.標(biāo)志詞②表次數(shù)：onTuesdays(每個(gè)星期四),everyday(每天),

onceaday(每天一次),twiceaweek(每周兩次)

threetimesaweek(每周三次)

如：TomplaysbasketballeverySunday.

IwatchTVtwiceaweek.

注意：1.表次數(shù)：先說次數(shù)再說星期2.3次及以上借助time的復(fù)數(shù)形式3.表次數(shù)的短語，通常放句末一、單項(xiàng)選擇1.Mandylikesplayingbadmintonandsheplaysit________.A.threetimeweeks

B.threetimeaweek C.threetimesaweek D.threetimesweek2.Thecook________foreighthourseveryday.A.working B.works C.worked D.towork3.She______doingsports,soshe______goesswimminginherfreetime.A.likes;often B.likes;hardly C.like;seldom D.like;always表次數(shù)：先說次數(shù)再說星期且3次及以上借助time的復(fù)數(shù)形式主語為三單，動(dòng)詞要用第三人稱單數(shù)形式主語為三單，動(dòng)詞要用第三人稱單數(shù)形式；often是經(jīng)常，喜歡運(yùn)動(dòng)，所以經(jīng)常游泳4.---________Annaoftenlateforschool?

---No,she________.A.Does;isn’t B.Is;isn’t C.Is;doesn’t D.Does;doesn’t5.Ben________forschool.He________upearly.A.neverlate;getsalways B.isneverlate;getsalwaysC.isneverlate;alwaysgets D.neverlates;alwaysgetslate為形容詞，形容詞常與be動(dòng)詞連用；用什么提問就用什么回答頻率副詞放be動(dòng)詞、情態(tài)動(dòng)詞、助動(dòng)詞的后面，放實(shí)義動(dòng)詞的前面五.句型轉(zhuǎn)換（改否定句）①判斷動(dòng)詞屬性

1.若謂語動(dòng)詞為be動(dòng)詞、助動(dòng)詞或情態(tài)動(dòng)詞，直接在后面加not

如：Tinaisastudent.→Tinaisnotastudent.Tomcanplaytheguitar.→Tomcannotplaytheguitar.2.若謂語動(dòng)詞為實(shí)義動(dòng)詞，則借助do動(dòng)詞(do/does/did).

注意：借助了助動(dòng)詞后，后面的實(shí)義動(dòng)詞恢復(fù)原形

如：Boblikesplayingchess.→Bobdoesn’tlikeplayingchess.六.句型轉(zhuǎn)換（改一般疑問句）①判斷動(dòng)詞屬性

1.若謂語動(dòng)詞為be動(dòng)詞、助動(dòng)詞或情態(tài)動(dòng)詞，直接提前到

主語前面

如：Tinaisastudent.→IsTinaastudent?Tomcanplaytheguitar.→CanTomplaytheguitar?2.若謂語動(dòng)詞為實(shí)義動(dòng)詞，則借助do動(dòng)詞(do/does/did).

注意：借助了助動(dòng)詞后，后面的實(shí)義動(dòng)詞恢復(fù)原形

如：Boblikesplayingchess.→DoesBoblikeplayingchess?七.句型轉(zhuǎn)換（改特殊疑問句）①選擇特殊疑問詞②判斷動(dòng)詞屬性

1.若謂語動(dòng)詞為be動(dòng)詞、助動(dòng)詞或情態(tài)動(dòng)詞，直接提前到

主語前面

如：Tomcanplaytheguitar.→WhatcanTomdo?2.若謂語動(dòng)詞為實(shí)義動(dòng)詞，則借助do動(dòng)詞(do/does/did).

注意：借助了助動(dòng)詞后，后面的實(shí)義動(dòng)詞恢復(fù)原形

如：Boblikesplayingchess.→WhatdoesBoblikedoing?隨堂小練：一.句型轉(zhuǎn)換1.Susanisastudent.否定句：一般疑問句：特殊疑問句：

2.Icanplaytheguitar.

否定句：一般疑問句：特殊疑問句：Susanisnotastudent.IsSusanastudent?Whoisastudent?Icannotplaytheguitar.Canyouplaytheguitar?Whatcanyoudo?隨堂小練：句型轉(zhuǎn)換3.Lilyeatsapieceofbreadforbreakfast.

否定句：一般疑問句：特殊疑問句：Lilydoesn’teatapieceofbreadforbreakfast.DoesLilyeatapieceofbreadforbreakfast?WhatdoesLilyeatforbreakfast?注意事項(xiàng)①若主語為第一人稱，轉(zhuǎn)換為疑問句時(shí)，要將第一人稱轉(zhuǎn)換

為第二人稱

如：Ilovewatchingmovies.→Doyoulovewatchingmovies?②若句中含有some，轉(zhuǎn)換為否定句和疑問句時(shí)，要變成any

如：Tomhassomebooks.→DoesTomhaveanybooks?③若句中含有and，轉(zhuǎn)換為否定句和疑問句時(shí)，要變成or

如：Tinahasanappleandabanana.

→DoesTinahaveanappleorabanana?

隨堂小練：句型轉(zhuǎn)換1.Ilovewatchingmovies.否定句：一般疑問句：特殊疑問句：

2.Shehassomenewbooks.

否定句：一般疑問句：特殊疑問句：Idon’tlovewatchingmovies.Doyoulovewatchingmovies?Whatdoyoulove?Shehasnotanynewbooks.Doesshehaveanynewbooks?Whatdoesshehave?隨堂小練：句型轉(zhuǎn)換3.Lilyeatsapieceofbreadanddrinkacupofmilkforbreakfast.

否定句：一般疑問句：特殊疑問句：Lilydoesn’teatapieceofbreadoracupofmilkforbreakfast.DoesLilyeatapieceofbreadoracupofmilkforbreakfast?WhatdoesLilyeatforbreakfast?綜合練習(xí):一、用括號內(nèi)所給單詞的正確形式填空。1.Everyone_____________(say)sheisagoodstudent.2.What_______youalways_______(do)o