【正文】 omena.(um/on→a)analysis→analyses, basis→bases, crisis→crises, diagnosis→diagnoses.(is→es)8)復(fù)合名詞變復(fù)數(shù)：以不可數(shù)名詞結(jié)尾的復(fù)合名詞無(wú)復(fù)數(shù)形式，如：homework. 以man或woman為前綴的復(fù)合名詞變復(fù)數(shù)，前后兩個(gè)名詞都變復(fù)數(shù)，如：manservant→menservants, woman student women students.其它復(fù)合名詞變復(fù)數(shù)：grownup→grownups, brotherinlaw→brothersinlaw, standby→standsby. 9)復(fù)合形容詞做定語(yǔ)時(shí)，其中的名詞保持單數(shù)：a sixyearold boy，a twohundredpage book大多數(shù)名詞變復(fù)數(shù)時(shí)在末尾直接加“s”：book boy piano 以“s, x, sh, ch”結(jié)尾的名詞變復(fù)數(shù)時(shí)在末尾加“es”：dress watch box部分以“o”結(jié)尾的名詞變復(fù)數(shù)時(shí)也要在末尾加“es”：hero nero potato mango tomato以輔音加”y”結(jié)尾的名詞變復(fù)數(shù)時(shí)在末尾將“y”改“i”加“es”：family baby puppy以“f”或“fe”結(jié)尾的名詞變復(fù)數(shù)時(shí)在末尾將“f”或“fe”改為“ves”：knife wife部分名詞屬于單復(fù)數(shù)同形，名詞復(fù)數(shù)還是其本身：sheep fish部分名詞本身就是復(fù)數(shù)：people glasses clothes部分單詞中含有字母組合“oo”，應(yīng)將“oo”改為“ee”：foot goose部分名詞屬于不規(guī)則變化，應(yīng)專門記憶：man child mouse不可數(shù)名詞一般不使用復(fù)數(shù)形式：water milk第四篇：動(dòng)詞第三人稱單數(shù)練習(xí)題動(dòng)詞第三人稱單數(shù)練習(xí)題大家都知道，在一般現(xiàn)在時(shí)中，當(dāng)主語(yǔ)是第三人稱單數(shù)時(shí)，謂語(yǔ)動(dòng)詞要用第三人稱單數(shù)形式，即常在動(dòng)詞原形后加s或es。但有些同學(xué)們對(duì)于哪些主語(yǔ)是第三人稱單數(shù)還不十分清楚，現(xiàn)歸納總結(jié)如下：一、人稱代詞he, she, it是第三人稱單數(shù)。如： likes 。 goes to school at 。 has a good 。二、單個(gè)人名、親朋好友等稱呼作主語(yǔ) 是第三人稱單數(shù)。如： never throws rubbish on the 。 Wang waters the flowers once a 。 Mary usually makes 。 mother washes the dishes 。三、第三人稱單數(shù)形式的構(gòu)成 s，如：workworkslivelives makemakes, x, ch, sh等結(jié)尾的單詞加 es , 如： missmisses finishfinishes teachteaches ，加 es如:gogoes dodoes ： havehas四、問(wèn)句：?jiǎn)柧渲杏龅降谌朔Q單數(shù)時(shí)，需要用助動(dòng)詞does, 動(dòng)詞變?yōu)樵?。What does she like? When does he brush his teeth? How often does your sister b her hair?練習(xí)一、將括號(hào)里動(dòng)詞的適當(dāng)形式填入橫線上。 ________ in the corridors.(walk) _________ in the corridors.(run) ___________ her face once a day.(wash) ____________ their teeth once a day.(brush) ___________ up your clothes once a day.(hang) ____________ our home work once a day.(finish) ____________ rubbish in the classroom.(throw) _____________ rubbish on the floor.(throw) _____________ rubbish in the bin.(throw) ___________ the table once a day.(set) never _________ in the corridors.(run) usually _________ the table.(set) and Ken _________ the plants in the morning.(water) boy __________ his hair once a day.(b)fixfixes 1 Cheng _________ TV at home.(watch) sister __________ his schoolbag once a day.(pack) mother _________ dinner for me.(cook) parents _________ the house at Chinese New Year.(clean) teachers _________ us some gifts.(give) friends _________ the table with me.(set)練習(xí)二、選擇正確的單詞填到括號(hào)里。 does Candy __________(wants,want)to be ? __________(should,shouldn’t)be quiet in the shouldn’t ___________(throw,throws)rubbish on the ___________(help,helps)his mother at never _________(run,runs)in the should __________(walks,walk)in the _________(don’t,doesn’t)get up often __________(do,does)your father go to bed? 練習(xí)三、將下列句子改成第三人稱He的句型（看例句）例句：I brush my teeth once a ：He brushes his teeth once a b my hair twice a go to school at six in the wash your face and put on your do you get up? _____________________________________________________________ often do you hang up your clothes? _____________________________________________________________ 2第五篇：動(dòng)詞第三人稱單數(shù)練習(xí)題當(dāng)主語(yǔ)是第三人稱單數(shù)時(shí)，動(dòng)詞形式有以下幾種變化： 一．寫出下列動(dòng)詞的三單形式：sitguessdiegorushreachtouchbrushflycopysayrundofixlivecryenjoyhavewishtieteachbuystudygostaymakecarryewatchflydo二、用括號(hào)內(nèi)動(dòng)詞的適當(dāng)形式填空。 often ________(have)dinner at and Tommy _______(be)in Class _______(not watch)TV on _______(not go)to the zoo on they ________(like)the World Cup? _______they often _______(do)on Saturdays? your parents _______(read)newspapers every day? girl _______(teach)us English on and I ________(take)a walk together every ________(be)some water in the _______(like) _______(have)the same aunt _______(look)after her baby always _______(do)your homework _______(be)’m staying in _______(go)to school from Monday to Tao _______(do)not like child often _______(watch)TV in the drinklookplant