現(xiàn)在進(jìn)行時(shí)1）表示現(xiàn)在（

指說話人說話時(shí)）

正在發(fā)生的事情。2）表示反復(fù)發(fā)生的動作或持續(xù)存在的狀態(tài).現(xiàn)在進(jìn)行時(shí)的結(jié)構(gòu)否定形式一般疑問句形式主語

+benotdoingsth.

be+

主語+doing

主語

+bedoingsth.MissChengishavingaclass.MissChengisnotreadinganewspaper.IsMissChengwatchingTVnow?肯定形式動名詞變化規(guī)則口訣規(guī)則例子直1.一般情況下，直接在動詞后加-ing。play–playing去2.動詞以不發(fā)音的-e結(jié)尾，要去-e加-ing。take–taking雙3.重讀閉音節(jié)的動詞，要雙寫詞尾字母，再加-ing。cut–cutting變4.以-ie結(jié)尾的動詞，把ie變成y再加-ing。lie–lyingdie–dyingtie-tying如何判斷現(xiàn)在進(jìn)行時(shí)(1)一般句中表示“在現(xiàn)在”的時(shí)間狀語，如：now,rightnow,atthemoment或It’s+幾點(diǎn)鐘”句型.(2)句中用到“Listen！”“Look!”“Keepquiet”“Don’tmakenoise!”等提示語時(shí)，表明說話間另一個(gè)動作正在進(jìn)行.(3)現(xiàn)在進(jìn)行時(shí)常用來表示在當(dāng)前一直做著的動詞，這時(shí)句中常用thesedays,allthetime等時(shí)間狀語。考查現(xiàn)在進(jìn)行時(shí)的結(jié)構(gòu)。根據(jù)“直、去、雙、變”原則：talk-talking;play-playing。進(jìn)行時(shí)的結(jié)構(gòu)是be+v-ing。【典例1】用詞語的正確形勢填空(1)Listen,Mr.Wu

onthephone(talk).(2)I

soccernow.I’mwalking.(notplay)istalkingamnotplaying【典例2】Look!Tom_____TVhappilyonthesofa.A.watchB.watchesC.watchingD.iswatching考查現(xiàn)在進(jìn)行時(shí)。look是現(xiàn)在進(jìn)行時(shí)的標(biāo)志詞，現(xiàn)在進(jìn)行時(shí)的結(jié)構(gòu)為be+v-ing，所以只有答案D符合。Whatisshedoing?Sheiswashingthedishes.Whataretheydoing?Theyarecleaning.Whataretheydoing?TheyarewatchingTV.Shelfcheck小試牛刀用所給詞的適當(dāng)形式填空1.I(read)abooknow.2.Look!Gina_______(make)amodleplane.3.BobandTom_____(play)pingpangatthemoment.4.List