初二寒假
1.take:拿走
takesb./sth.tosomeplace;takesth.withyoubring:帶來
bringsthforapicnic
It’sgoingtorain,pleasetakeanumbrellawithyou.
You’dbetterfinishyourhomeworktodayandbringittoschooltomorrow.2.2.keep+名詞+形容詞
Keepthewindowsopen,it’shothere.
keepsbdoingsthI’msorryI’vekeptyouwaitingforalongtime.keep表示—借‖用于和一段時(shí)間連用:HowlongcanIkeepthisbook?3.let/make/havesbdosth讓(使)某人干某事
Let’sgotothezoo!
Howdidhemakethebabystopcrying?
4.forgettodosth忘記去做某事remembertodosth記得去做某事forgetdoingsth忘
記做過某事rememberdoingsth記得做過某事5.stoptodosth停下來做另一件事情
stopdoingsth停止正在做的事情
stopsbfromdoingsth阻止某人干某事
6.see/hear/watchsbdosth看到某人做了某事
see/hear/watchsbdoingsth看到某人正在做某事IheardhimsingingintheroomwhenIpassedby.7.enjoysth;enjoydoingsth喜歡做某事
enjoyoneself=haveagoodtime
ourclassmateswenttozoolastSunday.Theyenjoyedthemselves.8.Bebusywithsth/bebusydoingsth.忙碌做某事
Theyareallbusywiththeirwork.9.Finishdoingsth結(jié)束做某事
Tomdidn’tgotobeduntilhefinishedwritinghishomework.
10.Hadbetterdosth/hadbetternotdosth最好做某事/最好不做某事
You’dbetternotsinghere.Thebabyisasleep.
11.Whynotdosth?=whydon’tyoudosth?為什么不-------
WhynotaskMr.Wangtogowithus?Whydon’tyoucometoschoolearly?12.Whataboutsth/whataboutdoingsth?=Howabout-----?干-----怎么樣?
Howaboutplayingbasketballwithus?
13.instead往往放在句首或句尾insteadofsth/insteadofdoingsth.通常放中間
Hedidn’tgotothepark.Hewenttothecinemainstead.
Hewenttothecinemainsteadofgoingtothepark..他去電影院而不是去公園。14.puton穿上(強(qiáng)調(diào)動(dòng)作),wear(強(qiáng)調(diào)狀態(tài))in介詞,構(gòu)成一個(gè)短詞
Putonyouroldclothestomorrow,becausewe’lldosomecleaning.Kateiswearingaredsweatertoday.
ThemaninabluesuitisMr.Li穿藍(lán)色西裝的男人是李先生。
15.在if引導(dǎo)的條件狀語(yǔ)從句、以when,before,after,assoonas引導(dǎo)的時(shí)間狀語(yǔ)從句,當(dāng)主句是:一般將來時(shí)態(tài)、含情態(tài)動(dòng)詞或祈使句的情況下,從句用一般現(xiàn)在時(shí)表示將來時(shí)。We’llgohikingifitdoesn’traintomorrow.itdoesn’train=itisn’trainyI’lltellherthegood
newsassoonasIseeher.
同樣的情況還適用于not----until句型Iwon’tgotobeduntilIfinishmyhomework.
16.在以when引導(dǎo)的時(shí)間狀語(yǔ)從句,當(dāng)從句是一般過去時(shí)態(tài)時(shí),主句往往用過去進(jìn)行時(shí),表示在過去的某一時(shí)刻正在發(fā)生或正在進(jìn)行的動(dòng)作:
TheywerehavingsupperwhenIgottotheirhome.當(dāng)我來到他們家時(shí),他們正在吃晚飯。17.Ittakes/sbsometimetodosth.干----花某人多少時(shí)間
Ittakeusabouttenhourstofinishourhomework.18.too----to太-----而不能
Mychildistooyoungtocarryit.我孩子太小了,而不能扛著那個(gè)東西。
Theapplesonthetreearetoohighformetoreach.樹上的蘋果太高了,而我不能夠到。
19.enough用法:形前名后,bigenough足夠的大;enoughfood足夠的食品enoughtodosth足夠----能夠------eg:Jimisoldenoughtogotoschool.
20.little,alittle修飾不可數(shù)名詞;much修飾不可數(shù)名詞;few;afew修飾可數(shù)名詞,
many修飾可數(shù);alittle;afew具有可定意義;little;few具有否定含義。21.muchtoo中心詞是too,常修飾形容詞;it’smuchtoocoldtoday.
toomuch中心詞是much,常修飾不可數(shù)名詞。Thereistoomuchwater.22.形容詞修飾不定代詞要放在不定代詞后面:
Isthereanythinginterestingintoday’snewspaper?今天的報(bào)紙上有有趣的東西嗎?23.形容詞修飾名詞,副詞修飾動(dòng)詞
Whatastrongwind!It’sblowingstrongly.
感官動(dòng)詞:feel,see,taste,smell;sound;become;后面直接加形容詞。24.感嘆句:what+a/an+形容詞+可數(shù)名詞單數(shù)形式+主語(yǔ)+謂語(yǔ)!What+形容詞+可數(shù)名詞復(fù)數(shù)形式/不可數(shù)名詞+主語(yǔ)+謂語(yǔ)!
How+形容詞或副詞+主語(yǔ)+謂語(yǔ)!
Eg:Whatanicedayitis!Howhappilytheyareplaying.
25.反義疑問句:要注意前肯后否,前否后肯,要用be動(dòng)詞,助動(dòng)詞或情態(tài)動(dòng)詞來做。要注意否定詞:never,little;few;hardly;nothing;nobody等(1)祈使句的反義疑問句用:willyou?
(2)以let’s開頭的反義疑問句用:shallwe?Thereislittlewaterinthebottle,isthere?
Pleasetakethesebookstotheoffice,willyou?YouhaveneverbeentoNewYork,haveyou?Let’shaveapartytogether,shallwe?
26.不規(guī)則變化:good/well--betterBest;littlelessleast;bad/ill-worse-worst.最高級(jí)用在:ofall,ofthethree,intheworld.等表示有范圍的短語(yǔ)中。Oneof+the+最高級(jí)+復(fù)數(shù)名詞。
Beijingisoneofthemostbeautifulcitiesintheworld.
27.either---or---或者---或者---;和neither---nor----既不----也不----謂語(yǔ)動(dòng)詞采用就近原則;eitherof和neitherof謂語(yǔ)動(dòng)詞用單數(shù)。Bothof和bothand謂語(yǔ)動(dòng)詞用復(fù)數(shù)。Eg;BothofthemareChinese.NeitherofthemisAustralian.NeitherJimandIamAmerican.
擴(kuò)展閱讀:初二數(shù)學(xué) 寒假作業(yè) 3
數(shù)學(xué)寒假作業(yè)3
選自11年北京懷柔區(qū)中考一模滿分100分
日期:月日得分:分
一、選擇題(本題共24分,每小題8分)1.不透明的袋子中裝有4個(gè)紅球、3個(gè)黃球和5個(gè)藍(lán)球,每個(gè)球除顏色不同外其它都相同,
從中任意摸出一個(gè)球,則摸出是藍(lán)球的概率為()
A.
574958512B.C.D.
2.201*年3月份,某市市區(qū)一周空氣質(zhì)量報(bào)告中某項(xiàng)污染指數(shù)的數(shù)據(jù)是:
31353134303231,這組數(shù)據(jù)的中位數(shù)、眾數(shù)分別是()A.32,31B.31,32C.31,31D.32,35
3.觀察下列圖形及所對(duì)應(yīng)的算式,根據(jù)你發(fā)現(xiàn)的規(guī)律計(jì)算1+8+16+24++8n(n是正整數(shù))的結(jié)果為()
2第3題圖
D.4n24n
A.2n1B.18nC.18(n1)二、填空題(本題共16分,每小題8分)
14.函數(shù)y=中,自變量x的取值范圍是.
x-2m
5.已知x=1是方程x2-4x+=0的一個(gè)根,則m的值是______.2三、解答題(本題共60分)
6.已知a2a30,求代數(shù)式1a1a1的值.(10分)
7.(本題滿分24分)“校園手機(jī)”現(xiàn)象越來越受到社會(huì)的關(guān)注.“寒假”期間,記者劉凱隨機(jī)調(diào)查了某區(qū)若干名學(xué)生和家長(zhǎng)對(duì)中學(xué)生帶手機(jī)現(xiàn)象的看法,統(tǒng)計(jì)整理并制作了如下的統(tǒng)計(jì)圖:
(1)求這次調(diào)查的家長(zhǎng)人數(shù),并補(bǔ)全圖①;(2)求圖②中表示家長(zhǎng)“贊成”的圓心角的度數(shù);(3)從這次接受調(diào)查的學(xué)生中,隨機(jī)抽查一個(gè),恰好是“無所謂”態(tài)度的學(xué)生的概率是多少?
學(xué)生及家長(zhǎng)對(duì)中學(xué)生帶手機(jī)的態(tài)度統(tǒng)計(jì)圖
人數(shù)
8.(本題滿分26分)
(1)如圖①兩個(gè)正方形的邊長(zhǎng)均為3,求三角形DBF的面積.
(2)如圖②,正方形ABCD的邊長(zhǎng)為3,正方形CEFG的邊長(zhǎng)為1,求三角形DBF的面積.(3)如圖③,正方形ABCD的邊長(zhǎng)為a,正方形CEFG的邊長(zhǎng)為b,求三角形DBF的面積.
從上面計(jì)算中你能得到什么結(jié)論.
280210140701408040贊成30無所謂30反對(duì)類別學(xué)生家長(zhǎng)贊成無所謂20%反對(duì)家長(zhǎng)對(duì)中學(xué)生帶手機(jī)的態(tài)度統(tǒng)計(jì)圖圖①圖②
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