仁爱英语八年级第四单元u4t1笔记+比较级练习

1仁爱英语八年级Unit4Topic1一.重点词语SectionAthinkabout=thinkof考虑,认为thinkof想起，认为thinkitover仔细考虑inthecountryside在乡村enjoythebeautiesofnature享受自然的美景SectionBgivesb.joy给某人快乐beimportanttosb.对某人很重要sharesth.withsb.与……分享feedon以……为食(指动物)liveon以……为食(指人类)SectionCcover…with…用…覆盖theearth’ssurface在地球的表面(Thousandsand)thousandsof成千上万maketheairfresher使空气更清新benecessaryfor对……..很有必要plentyof大量humansneedwatertodrink,tocookandtoclean人类需要喝的，煮的和洗的水Infact事实上makeup组成，化装，和解mostpartsoftheearth地球的大部分beimportantto对…….很重要livingthings生物saveeverydropofwater节约每一滴水not…atall一点也不，根本不humanscan’tliveatall______（没有）waterfill…with…用…填满…fillthehole_____earth用泥土填满这个洞makesure保证deepenough足够深keepitstraight保持它直SectionDlessandless+不可数名词“越来越少”fewerandfewer+名词复数“越来越少”innumber在数量方面indanger在危险中killthemforfurandbones为毛皮和骨头杀死它们二.重点句型１.Thepigismuchstrongerthanyou.I’mthebiggestofall２.Ithinkrosesarethemostbeautifulofalltheflowers３.Therainforestsareveryimportanttous热带雨林对我们很重要４.Waterisnecessaryforallplants.Itisthemostimportanttoalllivingthings,wemustsaveeverydropofwater.水对所有植物是必需的。它对所有生物是最重要，我们必须节约每一滴水。5.Itisoneofthemostdangerousfishintheworld.它是世界上最危险的鱼之一。6.Whatareyouthinkingabout?Whydoyouthinkso?三.语法学习（一.）形容词的比较级和最高级的构成１.规则变化：（1.）一般在词尾加—er或—est.如：fresh—fresher—freshest.（2.）以字母e结尾的形容词，加r或st,如：late—later—latest.（3.）以重读闭音节结尾的词，词尾只有一个辅音字母时，应双写这一辅音字母，再加er或est.如：big—bigger—biggest.（4.）以辅音字母＋y结尾的双音节词，先改y为i，再加er或est.happy—happier—happiest.（5.）部分双音节词和多音节词前面加more或most构成比较级或最高级。如：careful—morecareful—mostcareful,beautiful—morebeautiful—mostbeautiful.２.不规则变化：good/well—better—bestlittle—less—least,many/much—more—most,bad/ill—worse—worst,far—farther/further—farthest/furthest.（二.）形容词的比较级和最高级的用法１.比较级Ａ＜Ｂ或Ａ＞Ｂ，经常与than搭配，或给出比较的二个内容。可用much和alittle修饰．２.三者或三者以上比较用最高级，一般给出比较范围．如：of（in）＋…。(1)例句：①I’mhappierthanyou.我比你更快乐。②Plantsaremuchmorebeautifulthananimals.植物比动物漂亮的多。(２)例句：①Theboyisthetallestinmyclass.这个男孩是我们班最高的。②LessonTwoisthemostimportantofall.第二课是所有中最重要的。B：形容词比较级的用法序号意义结构例句1用于两者比较，表示“比…更…”比较级+than+BIamtwoyearsolderthanmylittlesister．2表示某个范围内的两者相比the+比较级+of短语(比较范围)Pennyisthetallerofthetwogirls．3表示“越来越…”或‘越…就越…’比较级+and+比较级moreandmore+多音节词the+比较级…,the+比较级Inspringthedaysaregettinglongerandlonger．Ourcountryisbecomingmoreandmorebeautiful.ThemoreyoupracticeusingEnglish，thebetteryou’lllearnit.6可以用much，far，even，abit，alittle，alot等修饰比较级表示程度，但不能用very修饰TomisalittletallerthanMike．7在比较级中，为了避免重复，可用that或those代替前面提到过的事情Insummer,theweatherinJNismuchhotterthanthatinQD．Thepantsinthisshoparealotbetterthanthoseinthatshop.C：形容词和副词最高级的用法对三者或三者以上的人或物进行比较时用最高级。形容词最高级前面要加定冠词the，副词最高级前可加the，也可省掉the；后面可带of／in短浯来说明比较范围：“主语+系动词+the+形容词最高级+of短语／in短语”eg．Sheistheyoungestofthethree．“A+谓语动词+(the)+最高级+of短语／in短语”．Lindadraws(the)mostcarefullyinherclass．注意：当主语和比较对象是同一类别时，用介词of;反之用in.Heisthetallestboyinhisclass.Heisthetallestboyofthethree（boys）.改错：thegirlistheyoungestinthethree.试用形容词比较级时候的注意点：★much,alittle,alot,far,even,any,still等可修饰比较级，表示程度，而very,rather,quite不能。Theexperimentwas____easierthanwehadexpected.A.moreB.muchmoreC.muchD.moremuchIfeeleven______now.A.badB.wellC.worseD.worst改错：heisverystrongerthanI.★在进行比较是要避免主语与自身进行比较。如：ChinaislargerthananycountryinAsia.×（因为anycountryinAsia中包括china本身）ChinaislargerthananyothercountryinAsia.√（other把China本身给除开了。）★在进行比较是，要注意比较的对象是否一致。如：Hiscomputerisnewerthan_______.A.mineB.yourC.himD.her形容词比较级的一些特殊用法。the+比较级，the+比较级，“越。。。越。。。”越快越好。____________越多越好_____________2越来越。。。”比较级+比较级，或moreandmore+adj.北京变得越来越漂亮啦。___________________________________________冬天来了，天气变的越来越冷了。___________________________________________一．写出下列单词的比较级、最高级1.long__________________2.short__________________3.big__________________4.early__________________5.nice__________________6.fat__________________7.strong__________________8.clean__________________9.busy__________________10.thin__________________11.tall__________________12.late__________________13.hot__________________14.happy__________________15.delicious________________________________16.beautiful________________________________17.interesting________________________________18.important________________________________19.popular________________________________20.expensive________________________________21.careful________________________________22.good__________________23.many__________________24.old__________________25.bad__________________二．用括号内单词的正确形式填空1.Bobis_________(young)thanFred.2.Elvaisnotas___________(tall)asLily.3.Tomlooks_______(fat)thanbefore.4.Whichis_________(heavy),ahenorachicken?5.--How_________(tall)isSally?--She's1.55metres________(tall).WhataboutLucy?--She'sonly1.40metres______(tall).Sheismuch_______(short)thanSally.Sheisalsothe_______(short)girlintheclass.6.Heis______(bad)atlearningmaths.Heismuch_______(bad)atChineseandheisthe_________(bad)atEnglish.7.AnniesaysSallyisthe________(kind)personintheworld.8.Heisoneofthe_________(friendly)peopleintheclass,Ithink.9.Adictionaryismuch_________(expensive)thanastory-book.10.Anorangeiaalittle______(big)thananapple,butmuch________(small)thanawatermelon.11.MissChenis___________________thanMr.Wang.(popular)12.Thebasketball_______________