第五课时SectionB(2a～2b)1．seriousadj.“严肃的；庄重的”，比较级为moreserious。【拓展】seriouslyadv.严肃地2．That'swhyIlikereadingbooks.这就是为什么我喜欢读书的原因。why在这里引导表语从句，故从句用陈述语序。3．aslongas只要；既然，用来引导条件状语从句，相当于onlyif。eg：Iwillbuythebookaslongasyoulikeit.只要你喜欢我将买这本书。4．necessaryadj.意为“必要的；必需的。”【注意】necessary不能修饰人，只能修饰物，常用it作形式主语，而把真正的主语todosth.放在句末。5．bringout使显现，使表现。6．should情态动词，意为“应该”。但它不可单独作谓语，须与实义动词原形连用，没有人称和数的变化。eg：Youshoulddrinklotsofwater.你应该喝大量的水。7．muchlesshardworking不努力得多“less＋adj./adv.的原级”表示“……不如……”。eg：Hestudieslesscarefullythanhissister.他不如他的妹妹学习认真。一、根据句意及首字母提示补全下列单词。1．Sheisas________teacher.Weareallafraidofher.2．Heoftenlooksathimselfinthem______afterhegetsdressed.3．Theteachersaidtous，“K________，haveagoodtimeattheparty”！4．It'sn________forustolearnEnglishwellinthe21stcentury.5．—Well，Jimmy.Yous________noteattoomuchicecream.—Iknowit'snotgoodformebutIreallylikeit.eriousirroridsecessaryhould二、用所给词的适当形式填空。6．Bothofthemenjoy________(go)toparties.7．It'snoteasyforme________(learn)Englishwell.8．Theyare___________(friendly)thanyouthink.9．MrZhanglikesLiLeibetterthanmost________(kid)．10．LiuChangworks________(hard)thanI.goingtolearnfriendlierkidsharder三、单项选择。11．—Let'sgoshoppingatthenewmall.—Whynotshoponline？It's________.A．expensiveB．moreexpensiveC．lessexpensiveD．themostexpensive12．Myteacherhelpsto________thebestinme.A．takeoutB．lookoutC．bringoutD．comeout13．I'mshysoit's________formetomakefriends.A．easyB．popularC．difficultD．friendlyCCC14．Ifyouworkhard，youwillgetgood________.A．gradesB．notesC．lessonsD．answers15．Don'tworryaboutyourjob________youworkhard.A．aslongB．solongC．aslongasD．aslongerasAC四、根据汉语完成句子，每空一词。16．我认为一个好朋友就像一面镜子。Ithinkagoodfriendis________a...
