八年級英語下冊《Unit7Whatsthehighestmountainintheworld》（第5課時）課件（完整版）5

Unit7What’sthehighestmountainintheworld？(3a---selfcheck)學(xué)習(xí)目標(biāo)1、能聽說讀寫單詞：whale,oil,protection,huge.2、能正確運(yùn)用形容詞和副詞的比較級和最高級。higherhighestmoredangerousmostdangerouslongerlongestmorepopularmostpopularbodyBeijingmywishcrowdedstronger形容詞和副詞的比較級和最高級大多數(shù)形容詞有三個級。原級:常用結(jié)構(gòu)as...as...像..….一樣ZhangHongisastallasTom.張紅和湯姆一樣高。2)比較級(用于兩者之間的比較)常用結(jié)構(gòu)：形容詞比較級＋than...HeistallerthanI.他比我高。Grammar3)最高級(用于三者或三者以上的比較)，常用結(jié)構(gòu):the+形容詞的最高級＋of/in...Heisthetallestofthethree.他是這三個人中最高的。

Heisthefunniestinhisclass.他是他們班最有趣的。

形容詞、副詞比較級和最高規(guī)則變化和不規(guī)則變化。規(guī)則變化1)一般情況下，單音節(jié)或雙音節(jié)的形容詞（或副詞）比較級＋er，最高級＋est

如：clever－cleverer－cleverest

few－fewer－fewest

small－smaller－smallest等。2)以e結(jié)尾的詞，比較級＋r，最高級＋st即可。如：nice－nicer－nicestcute－cuter－cutestlarge－larger－largest3)以輔音字母＋y結(jié)尾的變y為i＋er或est

如:easy－easier－easiest

happy－h(huán)appier－h(huán)appiest

再如：early,busy,heavy,dirty,lazy也如此。4)雙寫最后一個輔音字母＋er或est的詞,同學(xué)要用心去記。fat－fatter－fattest2.thin－thinner－thinnest

3.hot－h(huán)otter－h(huán)ottest

4.red－redder－reddest5.wet－wetter－wettest

6.big－bigger－biggest5)多音節(jié)和部分雙音節(jié)的詞需要在形容詞原級前＋more構(gòu)成比較級，＋themost構(gòu)成最高級。如：beautiful－morebeautiful－themostbeautiful又如:delicious,popular,important,interesting,expensive,creative雙音節(jié)的詞如:

careful－morecareful－themostcareful

useful－moreuseful－themostuseful少數(shù)單音節(jié)詞也是這樣，如：

pleased－morepleased－themostpleasedtired－moretired－themosttiredb)不規(guī)則變化：

good—better—bestwell—better—best

bad－worse－worstmany,much—more—mostfar—farther—farthest(距離遠(yuǎn))far—further—furthest(程度深)old—elder—eldest(長幼)old—older—oldest(年齡)課堂小結(jié)形容詞和副詞的比較級和最高級當(dāng)堂檢測：1.Mybrotheris___moreoutgoingthanme.A.manyB.littleC.much2.October12thwasoneof______daysin2005.Shenzhou-VIwaslaunched(發(fā)射）successfully.A.excitingB.moreexcitingC.themostexciting3.Whichcityis______,Beijing,ShanghaiorFuzhou?A.beautifulB.morebeautifulC.themostbeautiful4._____childrenthereareinafamily,____theirlifewillbe.A.Theless,thebetterB.Fewer,richerC.Thefewer,thebetter5.Mobilephonesareverypopularnowandtheyare______thanbefore.A.cheapB.cheaperC.thecheapest6.Inourcity,it’s_____inJuly,butit’seven___inAugust.A.hotter,hottestB.hot,hotC.hot,hotter7.Ofthetwoskirts,thepinkoneis______.A.thenicestB.thenicerC.nicer8.Jack’shandwritingisas____asMike’s.A.goodB.betterC.best9.Wecandotheworkbetterwith____moneyand______people.A.little,fewB.less,fewerC.fe