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1、PeriodFourGrammarDegreesofcomparison感知以下课文原句，完成方框下的小题1The earth is fortynine times larger than the moon.2Its getting brighter and brighter.3The closer you are，the more youll see.4The more books I read，the more information I learn.5We need rather more than that.1由句1可知一种倍数的表达法：倍数形容词/副词的比较级than。2句2为“比较
2、级and比较级”结构，意为“越来越”。3句3和句4为“the比较级.，the比较级.”意为“越，(就)越”。4由句5可知rather可以修饰比较级。一、倍数的表达法规则说明例句倍数as形容词/副词原级asThistableisthreetimesasbigasthatone.这张桌子是那张桌子的三倍大。倍数形容词/副词比较级thanOurschoolistwicebiggerthanyours.我们学校比你们学校大一倍。倍数the名词(size，height，length，width，etc.)ofThenewbuildingisthreetimestheheightoftheoldone.这
3、座新楼是那座旧楼的三倍高。倍数what从句Thevalueofthehouseistwicewhatitwas.这套房子的价值是原来的两倍。二、用形容词和副词表示比较级和最高级的几个重要句型1“比较级than”意为“比更”。Thatseasiersaidthandone.说比做容易。2“.as原级as.”意为“和一样”。Thebuildingisashighasthetower.这幢建筑和那座塔一样高。3“.notas/so原级as.”意为“不及”。Mydictionaryisnotas/sousefulasyours.我的字典不如你的有用。4nomore.than表示“和一样都不”；而not
4、more.than则表示“不如”，相当于“notso.as”。JackisnomoreintelligentthanJohn.杰克与约翰一样都不聪明。Sheisnotmoregenerousthanheryoungersister.她不如她妹妹慷慨大方。5“比较级and比较级”意为“越来越”。Inthefuture，therewillbelessandlessoil，gasandcoalleft.将来，石油、天然气和煤会越来越少。Ourschoolisbecomingmoreandmorebeautiful.我们的学校正变得越来越美丽。6“the比较级.，the比较级.”意为“越，(就)越”。
5、Themore，thebetter.越多越好。Themorewehave，themorewewant.人欲无穷。7“否定词比较级”表示最高级含义。Hehasneverspentamoreworryingday.他度过了最忧虑的一天。Thereisnogreaterlovethanthatofamanwholaysdownhislifeforhisfriends.为朋友而放弃生命的人的爱是最伟大的爱。三、比较级的修饰语在英语中，我们经常可以用一些词或短语来修饰形容词或副词的比较级。常见的几种形式如下：1比较级的修饰语通常为副词或短语，置于比较级前面，说明比较级的程度。常用副词或短语有：alitt
6、le，little，abit，bit，alot，agreatdeal，much，far，rather，slightly，byfar，even，still，nearly，almost，any，just等。Thegreenpenisabitmoreexpensivethantheredone.这支绿色的笔比那支红色的贵一点。Atrainrunsmuchfasterthanabus.火车比公共汽车跑得快得多。注意：(1)byfar修饰比较级时，一般放在比较级的后面；如果放在前面，则应在形容词或副词的比较级前面加定冠词the。Heistallerbyfarthanhisbrother.他比他弟弟高得多
7、。Sheisbyfarthetallerofthetwosisters.她显然是两姐妹中比较高的。(2)any意为“稍微，一些”，多用于疑问句、否定句或含有否定意义的句子中。Shewastootiredtowalkanyfurther.她累得一点也走不动了。2分数、百分数、时间、长度、重量等词也可放在比较级前，表示作比较的二者之间相差的程度。Heisfiveminuteslaterthanhewasyesterday.他比昨天晚到了五分钟。单句语法填空1Accordingtoareviewofevidenceinamedicaljournal，runnerslivethreeyearslong
8、er(long) thannonrunners.(2018全国)2Cornuseslesswaterthanriceandcreateslessfertilizer(化肥) runoff.(2018全国)3Hescreamstheloudest(loud) ofall.(2018全国)4Therecouldbeanevenhigher(high) costonyourhealth.(2018浙江)5Evenworse(bad)，theamountoffastfoodthatpeopleeatgoesup.(2017全国)6Sixteenyearsearlier(early)，Pahlssonh
9、adremovedthediamondringtocookameal.(2017浙江)7Ifyoufeelstressedbyresponsibilitiesatwork，youshouldtakeastepbackandidentify(识别) thoseofgreater(great) andlessimportance.(2016全国)8IhavealwaysenjoyedalltheeventsyouorganizedandIhopetoattendmanymore(many) inthecomingyears.(2016浙江)9Finally，thathardworkpaidoffa
10、ndnowthewaterintheriveriscleaner(clean) thanever.(2014新课标全国)10Theharder(hard) youtrytobeathim，themorelikelyyouwillgethit.(2014辽宁).单句语法填空1Assummeriscoming，thedayisbecominglongerandlonger.(long)2Thewarmer(warm) theweatheris，thebetter(good) thecropswillgrow.3Wehaveneverspentamoreexciting(exciting) day.
11、4Theyellowbuildingistwicetheheight(high)oftheredone.5Howbeautifullyshesings！Iveneverheardabetter(good) voice.6Therainfallthisyearistwicewhatitwaslastyear.7Weneedapiecewhichisagreatdealbigger(big) thanthat.8Themanistenyearsolder(old) thanhiswife.9Thepatienthasrespondedtothetreatmentratherbetter(good)
12、 thanexpected.10Yourideaisnotgood，buthersisevenworse(bad)11Canyoumovealittlefarther(far)?12Whichisthelarger(large) country，CanadaorAustralia?13Thisropeistwice(two) longerthanthatone.14Thishillisfourtimestheheight(high) ofthatsmallone.15Thepianosinanothershopwillbecheaper(cheap)，butnotasgood.语法填空Itss
13、nowing.ItsalreadyDecembernow.Theweatherisgetting16.colderandcolder(cold)Mydaughterlovessnow.Shehasbeenlookingforwardtothesnowscomingforalongtime.Thismorning，whenmydaughtergotupandlookedoutofthewindow，shesuddenlyfounditwassnowing.Sherushedout，singingandjumping.Shehadneverseena17.morebeautiful(beautif
14、ul) scenethanthisbefore.The18.moreheavily(heavily) itsnowed，the19.more(many) childrengathered.Manychildrenmadesnowmenoutside，butmydaughterthoughtshegotthe20.coolest(cool) snowman.Thesnowmanshemadewasabouttwice21.larger(large) thantheothers.基础巩固.用所给词的正确形式填空1Andyiscontentwiththetoy.Itisthebest(good) h
15、ehasevergot.2Shehadtowaitaverylongtime.Thelongershewaited，themoreimpatient(impatient) shebecame.3Globalwarmingcouldberatherworse(bad) thanwethink.4Wehadmadeourreservationsixmonthsearlier(early)，butthemanatthefrontdesksaidtherehadbeenamistake.5Raymondsparentswantedhimtohavethebest(good) possibleeducation.6Itmaynotbeagreatsuggestion.Butbeforeabetter(good) oneisputforward，wellmakedowithit.7Thisis
