掃描注冊(cè)有禮
讓進(jìn)步看得見
熱門課程先知道
預(yù)約課程還可獲贈(zèng)免費(fèi)的學(xué)習(xí)復(fù)習(xí)診斷
點(diǎn)擊預(yù)約→免費(fèi)的1對(duì)1學(xué)科診斷及課程規(guī)劃
五 數(shù)詞:基數(shù)詞,序數(shù)詞
一、基數(shù)詞
(1)1-20
one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen,
sixteen,seventeen,eighteen,nineteen,twenty
(2)21-99 先說“幾十”,再說“幾”,中間加連字符。
23→twenty-three,34→thirty-four,45→forty—five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→
eighty-nine,91→ninety-one
(3)101—999先說“幾百”,再加and,再加末兩位數(shù)或末位數(shù);
586→five hundred and eighty-six,803→eight hundred and three
(4)l,000以上,先從右往左數(shù),每三位數(shù)加一個(gè)“,”,先進(jìn)個(gè)“,”前為thousand.第二個(gè)“,”前為million,第三個(gè)“
,”前為billion
1,001→one thousand and one
18,423→eighteen thousand,four hundred and twenty-three
6,260,309→six million two hundred and sixty thousand three hundred and nine750,000,000,000→seven hundred and fifty billion
二、序數(shù)詞
(1)一般在基數(shù)詞后加th
eg.four→fourth,thirteen→thirteenth
(2)不規(guī)則變化
one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth,twelve—twelfth
(3)以y結(jié)尾的十位整數(shù),變y為ie再加th
twenty→twentieth, forty→fortieth, ninety→ninetieth
(4)從二十一后的“幾十幾”直至“幾百幾十幾”或“幾千幾百幾十幾”只將個(gè)位的基數(shù)詞變?yōu)樾驍?shù)詞。
twenty-first,two hundred and forty-fifth
基數(shù)詞轉(zhuǎn)為序數(shù)詞的口訣:
基變序,有規(guī)律,詞尾加上-th.
一,二,三,特殊記,詞尾字母t,d,d.
八去t,九去e, ve要用f替。
ty將y變成i,th前面有個(gè)e.
若是碰到幾十幾,前用基來后用序。
六、介詞:常用介詞:in, on, at, behind等
1.at表示時(shí)間概念的某一個(gè)點(diǎn)。(在某時(shí)刻、時(shí)間、階段等)。
at 1:00(dawn,midnight,noon)在一點(diǎn)鐘(黎明、午夜、中午)
2.on
1)表示具體日期。
注:(1)關(guān)于"在周末"的幾種表示法:
at(on)the weekend在周末---特指
at(on)weekends在周末---泛指
over the weekend在整個(gè)周末
during the weekend在周末期間
(2)在圣誕節(jié),應(yīng)說at Christmas?而不說on Christmas?2)在(剛……)的時(shí)候。
On reaching the city he called up his parents.
一到城里他就給父母打了一個(gè)電話。
3.in
1)表示"時(shí)段"、"時(shí)期",在多數(shù)情況下可以和during互換,前者強(qiáng)調(diào)對(duì)比,后者強(qiáng)調(diào)持續(xù)。 in(during)1988(December,
the 20th century)在一九八八年(十二月、二十世紀(jì))
七、動(dòng)詞:動(dòng)詞的四種時(shí)態(tài):
(1)一般現(xiàn)在時(shí):
一般現(xiàn)在時(shí)的構(gòu)成
1. be動(dòng)詞:主語+be(am, is, are)+其它。如: I am a boy. 我是一個(gè)男孩。
2. 行為動(dòng)詞:主語+行為動(dòng)詞(+其它)。 如: We study English. 我們學(xué)習(xí)英語。
當(dāng)主語為第三人稱單數(shù)(he, she, it)時(shí),要在動(dòng)詞后加"-s"或"-es"。如:Mary likes Chinese.瑪麗喜歡漢語。
動(dòng)詞+s的變化規(guī)則
1.一般情況下,直接加-s,如:cook-cooks, milk-milks
2.以s. x. sh. ch. o結(jié)尾,加-es,如:guess-guesses, wash-washes, watch-watches, go-goes
3.以“輔音字母+y”結(jié)尾,變y為i, 再加-es,如:study-studies
(2)一般過去時(shí):
動(dòng)詞過去式詳解 動(dòng)詞的過去式的構(gòu)成規(guī)則有:
A、規(guī)則動(dòng)詞
、 一般直接在動(dòng)詞的后面加ed:如 worked , learned , cleaned , visited
② 以e結(jié)尾的動(dòng)詞直接加d:如 lived , danced , used
、 以輔音字母加y結(jié)尾的動(dòng)詞要改y為i再加ed(此類動(dòng)詞較少)如 study – studied carry – carried worry –
worried (注意play、stay不是輔音字母加y,所以不屬于此類)
、 雙寫較后一個(gè)字母(此類動(dòng)詞較少)如 stopped
B、不規(guī)則動(dòng)詞(此類詞并無規(guī)則,須熟記)小學(xué)階段要記住以下動(dòng)詞的原形和過去式:sing – sang , eat – ate ,
see – saw , have – had , do – did , go – went , take – took , buy – bought , get – got , read – read
,fly – flew , am/is – was ,
are – were , say – said , leave – left , swim – swam , tell – told , draw – drew , come – came , lose
– lost , find – found , drink – drank , hurt – hurt , feel – felt
(3)一般將來時(shí):
基本結(jié)構(gòu): ①be going to + do;
②will+ do. be going to = will
I am going to go swimming tomorrow(明天). = I will go swimming tomorrow.
(4)現(xiàn)在進(jìn)行時(shí): am,is,are+動(dòng)詞現(xiàn)在分詞
動(dòng)詞現(xiàn)在分詞詳解 動(dòng)詞的ing形式的構(gòu)成規(guī)則:
、 一般的直接在后面加上ing , 如doing , going , working , singing , eating
、 以e 結(jié)尾的動(dòng)詞,要先去e再加ing ,如having , writing
、 雙寫較后一個(gè)字母的(此類動(dòng)詞極少)有:running , swimming , sitting , getting
愛智康小學(xué)頻道為大家提供了2017小學(xué)英語語法知識(shí)點(diǎn)匯總,大家可以拿去好好看了!如果還有其他問題可以撥打免費(fèi)電話:4000-121-121!
2016智康暑期課 | ||
預(yù)初銜接課程 | 點(diǎn)擊咨詢 | 點(diǎn)擊查看專題 |
新概念英語 | 點(diǎn)擊咨詢 | 點(diǎn)擊查看專題 |
初中文言文專項(xiàng)課程 | 點(diǎn)擊咨詢 | 點(diǎn)擊查看專題 |
小學(xué)1對(duì)1獎(jiǎng)學(xué)金課程 | 點(diǎn)擊咨詢 | 點(diǎn)擊查看專題 |
小學(xué)1對(duì)1精品課程 | 點(diǎn)擊咨詢 | 點(diǎn)擊查看專題 |
課程相關(guān)咨詢電話 :4000-121-121 |
點(diǎn)擊預(yù)約→99元快課,一次課聽懂一個(gè)知識(shí)點(diǎn)
小一至小五年級(jí)期末試題答案