资源简介 / 让学习更有效 新课备课备考 | 英语学科/ 让学习更有效 新课备课备考 | 英语学科2025年鲁教版(五四学制)九年级全册英语精讲精练Unit 2 Teenagers should be allowed to choose their own clothes核心语法:enough的用法一、核心概念enough表示"足够",可用作形容词、副词和代词,在句中的位置和用法有特定规则。二、基本用法分类词性 位置规则 例句形容词 名词前(+名词) We have enough time.副词 形容词/副词后(+adj./adv.) You're not old enough.代词 单独使用(=enough things) I've had enough, thank you.三、详细用法解析作形容词修饰名词结构:enough + 名词There is enough food for everyone.(有足够的食物)Do you have enough money 作副词修饰形容词/副词结构:形容词/副词 + enough (+ to do)She is tall enough to reach the shelf.(她够高能够到架子)He ran fast enough to win the race.作代词独立使用That's enough, please stop.(够了,请停下)Have you had enough to eat enough to do 结构表示"足够...可以做..."The box is light enough to carry.(箱子很轻可以搬动)四、特殊句型not...enough to do(不够...以至于不能)He is not strong enough to lift it.(他不够强壮举不起来)enough for sb./sth.Is the water warm enough for the baby (水对宝宝够暖吗?)enough + 名词 + to doWe don't have enough people to play the game.(我们人不够玩游戏)五、易错点提醒位置错误(重点!) enough tall → tall enough books enough → enough booksenough与too的区别enough:足够(肯定)The room is big enough.too:太...(否定)The room is too small.不可数名词的用法There isn't enough information.(information不可数)六、记忆口诀"enough用法三兄弟,形前名后要牢记;副修形副必须后,独立使用代词替;to do表结果,for接对象别忘记!"1.—If you ________ for your favorite TV show, you will feel sleepy in class.—Yes. Enough sleep is good for our health.A.pick up B.cut up C.stay up D.put up2.—Mom, can I have the coat and the sweater —Sorry, dear. We don’t have enough money, so you have to choose ________ the coat ________ the sweater.A.not only; but also B.either; or C.both; and3.There isn’t enough water on the earth. So we need to _______ water.A.drink B.save C.use4.Lin Tao ran ________ to get the first place in the 100-metre race.A.enough fast B.fast enough C.slow enough5.—Did you buy that red skirt —No, I didn’t. It’s too ________ for me. I don’t have enough money.A.expensive B.special C.exciting6.—Fiona planned to join our dance club. Do you know ________ —Maybe she didn’t have enough time for it.A.why does she suddenly change her mind B.why she suddenly changes her mindC.why did she suddenly change her mind D.why she suddenly changed her mind7.—Are you sure there are enough candles for the birthday cake —Yes. I _______ them twice.A.count B.will count C.have counted8.You ________ to do enough exercise and have good eating habits to keep healthy.A.may B.must C.ought D.should9.You ________ finish all the homework today because you’ll have enough time for it tomorrow.A.can’t B.mustn’t C.won’t D.needn’t10.Suzy was a quiet girl, but now she is ________ to give a talk to her classmates.A.too weak B.too brave C.weak enough D.brave enough11.The gate of our school should be wider. It is________ for two cars to go through.A.too wide B.enough wide C.not too wide D.not wide enough12.The boy is ________ tired ________ go on studying.A.too; to B.so; that C.not; enough to D.enough; to13.— I like this singer so much, but I don’t have enough money to buy the ticket to his concert.— _______A.Good luck! B.What a pity! C.Congratulations!14.—Did you buy that red skirt —No, I didn’t. It’s too ______ for me. I don’t have enough money.A.heavy B.expensive C.special15.—________ will the school sports meeting start —It will start in two weeks. We still have enough time to practice.A.How long B.How often C.How soon16.Tan Dun is ________ enough to make music out of objects like stones and paper.A.calm B.careful C.creative17.The boy is ________ to carry the heavy box.A.enough strong B.strong enough C.too strong D.strong too18.There ________ enough fresh water for us in the future if we don’t save it.A.won’t have B.won’t be C.is D.is going to have19.________ is not enough to just sit and listen. Your brain must be active.A.This B.That C.It20.I don’t think young Tom can ________ the apple on the shelf because he isn’t tall enough.A.teach B.accept C.reach D.keep21.Danny checked his composition ________ so that he could make less mistakes.A.careful enough B.enough careful C.enough carefully D.carefully enough22.— I think self-driving cars are the future. What about you — For me, they are not ________ enough.A.safe B.fair C.strange23.To have a healthy lifestyle, we should have a ________ diet, enough exercise and sleep.A.patient B.balanced C.lucky D.beautiful24.—My grandpa used to tell me that practice ________ perfect.—That’s true. Enough practice can help us do better in everything.A.makes B.would make C.made25.—What can you learn from Journey to the West —I learn that we should have enough ________ to overcome the difficulties in our life.A.danger B.courage C.success D.influence26.The saying “Work with our own hands and we will have enough to eat and wear.” tells us ________A.how can we be rich B.what is made by handC.where can we find enough food D.why we should depend on ourselves27.The boy is ________ to go to school.A.old enough B.enough old C.enough years old28.If you’re interested in detective films, Detective Chinatown 1900 is ________ to miss. It’s my cup of tea!A.boring enough B.too boring C.interesting enough D.too interesting29.All ________ we need is enough time.A.who B.whom C.whose D.that30.The boy is ________ to carry the heavy box.A.enough strong B.strong enough C.too strong D.so strong31.Have enough sleep, ________ you’ll get better soon.A.but B.and C.if D.while32.He decided ________ money for the village girls, so they can have enough money to go to school.A.raises B.raising C.raise D.to raise33.The ________ in the room is not enough for me to do my homework.A.light B.wind C.water34.After you finish your homework, you must check it ________.A.enough carefully B.carefully enough C.careful enough35.—Does my question sound polite enough —I don’t think so. You can ask ________ by using “could” instead of “cam”.A.impolitely B.more impolitely C.politely D.more politely36.If I practice ________ enough, I can’t fail.A.hardly B.hard C.harder D.hardest37.I plan to travel to Beijing next month, and I think 3,000 yuan ________ enough.A.was B.are C.is D.were38.He also wondered ________ he was lucky enough to catch one.A.how B.where C.what D.whether39.There are twenty kinds of food at the party. I think they are enough to ________ everyone.A.imagine B.satisfy C.create D.afford40.—Don’t give up. Things will be fine soon.—Yeah. I should learn to be ______ when in trouble.A.brave enough B.enough brave C.sad enough D.angry enough41.In class, if you know the answer to the teacher’s question, you should be brave enough to ________ your hand and answer it.A.rise B.raise C.rose42.—Could you help me organize an environmental protection activity this weekend —________. I’m always willing to do something for the environment.A.It depends B.I’ve had enough C.No problem D.Don’t mention it43.—I want to read something. Would you like to give me _________ to read?—Let me see.A.anything interesting enough B.anything enough interestingC.something enough interesting D.something interesting enough44.—The new computer over there is about 5,000 yuan.—Oh, I don’t have enough money. The price is too ________.A.low B.high C.expensive45.It’s said that the water in the river will be ________ for us ________.A.too clean; to drink B.enough clean; to drinkC.so clean; to drink D.clean enough; to drink46.The gate of the park is not wide enough, so cars have to ________ it one by one.A.join in B.look across C.look over D.go through47.—________ money should I pay (支付) you for the CD —$12________ enough (足够).A.How much; are B.How much; is C.How many; is D.How many; are48.Our shoes are different ________ size. Mine are ________ for me.A.on; enough big B.from; big enough C.for; enough big D.in; big enough49.—My dream is to be a doctor.—Me too. Doctors are brave enough to fight against illness and they are my ________.A.heroes B.winners C.bosses D.leaders50.The girl is ________ to go to school by herself.A.enough old B.old enough C.enough young D.young enough/ 让学习更有效 新课备课备考 | 英语学科/ 让学习更有效 新课备课备考 | 英语学科21世纪教育网(www.21cnjy.com)21世纪教育网(www.21cnjy.com)参考答案及试题解析1.C【解析】——如果你为了你最喜欢的电视节目熬夜,你上课时将会感觉困倦。——是的。充足的睡眠对我们的健康有好处。考查动词短语辨析。pick up捡起;学会;cut up切碎;stay up熬夜;put up张贴;搭建。根据“you will feel sleepy in class”可知,此处是如果你为了你最喜欢的电视节目熬夜。故选C。2.B【解析】句意:——妈妈,我可以买外套和毛衣吗?——抱歉,亲爱的。我们没有足够的钱,所以你必须在外套和毛衣中任选其一。考查连词辨析。not only...but also不仅……而且……;either...or要么……要么……;both...and两个都。根据“We don’t have enough money, so you have to choose...”可知,没有足够的钱买两者,所以只能两者中选择一个。故选B。3.B【解析】句意:地球上没有足够的水。因此我们需要节约用水。考查动词辨析。drink喝;save节约;use使用。根据“There isn’t enough water on the earth.”可知,水资源不充足,所以需要节约用水。故选B。4.B【解析】句意:林涛跑得足够快,获得了100米赛跑的第一名。考查副词的用法和enough的用法。fast快,副词;slow慢的,形容词。根据“to get the first place in the 100-metre race.”可知跑得很快,修饰动词用副词,enough修饰副词时,需后置。故选B。5.A【解析】句意:——你买那条红裙子了吗?——不,我没有。对我来说太贵了。我没有足够的钱。考查形容词辨析。expensive贵的;special特别的;exciting令人兴奋的。根据“I don’t have enough money.”可知它很贵,没有足够的钱买。故选A。6.D【解析】句意:——菲奥娜计划加入我们的舞蹈俱乐部。你知道她为什么突然改变主意了吗?——也许她没有足够的时间。考查宾语从句。宾语从句要用陈述句语序,即“引导词+主语+谓语+其他”,排除选项A和C,它们都是疑问句语序;再根据答语“Maybe she didn’t have enough time for it.”可知,菲奥娜没有加入舞蹈俱乐部,改变主意是过去发生的事情,所以宾语从句要用一般过去时,排除选项B,它是一般现在时。故选D。7.C【解析】句意:——你确定有足够的蜡烛做生日蛋糕吗?——有的。我数了两遍。考查动词时态。根据“I …them twice.”可知,已经数了两遍了,句子使用现在完成时,其结构为have/has done。故选C。8.C【解析】句意:你应该做足够的运动,有良好的饮食习惯来保持健康。考查动词辨析。may也许;must必须;ought与to搭配,表示“应该”;should应该。根据“You ... to do enough exercise”可知,此处是ought to“应该”。故选C。9.D【解析】句意:你今天不必完成所有的家庭作业,因为明天你有足够的时间。考查情态动词。can’t不能;mustn’t禁止;won’t将不;needn’t不必。根据“because you’ll have enough time for it tomorrow.”可知明天有足够的时间做作业,所以今天不必全部完成。故选D。10.D【解析】句意:Suzy是一个安静的女孩,但是现在她足够勇敢地向她的同班同学做演讲。考查词义辨析。too weak太弱;too brave太勇敢;weak enough足够弱小;brave enough足够勇敢。根据“but”和“give a talk to her classmates”可知,现在Suzy是勇敢的,而too...to为“太……而不能”之意,不符合句意,需“adj.+enough +to do”结构,表示“足够……而能……”,故选D。11.D【解析】句意:我们学校的门应该更宽些。它不够宽,无法让两辆车同时通过。考查enough和too用法。enough修饰形容词,需要后置,排除B;too...to...表示“太……而不能”,AC选项在此处和句意不符合,D选项正确,表示门不够宽,无法让两辆车同时通过。故选D。12.A【解析】句意:这个男孩太累了,无法继续学习。考查too ... to结构。too ... to太……而不能……,to后面加动词原形;so ... that如此……以至于……,that后接句子;not ... enough to不够……;enough ... to足够……可以……。根据“tired ... go on studying”可知,是指太累了,而不能继续学习,空二后是动词原形go,用too ... to结构。故选A。13.B【解析】句意:—— 我很喜欢这个歌手,但我没足够的钱买他演唱会的门票。—— 真可惜!考查情景交际。Good luck!祝你好运,用于祝福;What a pity!真可惜;真遗憾;Congratulations!恭喜,用于祝贺。根据“I don’t have enough money to buy the ticket to his concert”可知,没钱买门票是可惜的。故选B。14.B【解析】句意:——你买那条红裙子了吗?——不,我没有。对我来说太贵了。我没有足够的钱。考查形容词辨析。heavy重的;expensive贵的;special特别的。根据“I don’t have enough money.”可知它很贵,没有足够的钱买。故选B。15.C【解析】句意:——学校运动会多久开始?——两周后开始。我们还有足够的时间练习。考查特殊疑问句。how long多长时间;how often多久一次;how soon多久之后。根据“It will start in two weeks.”可知,答语是“in+一段时间”,应该用how soon提问,询问学校运动会多久之后开始。故选C。16.C【解析】句意:谭盾很有创造力,他可以用石头和纸等物品制作音乐。考查形容词辨析。calm冷静的;careful小心的;creative有创造力的。根据“make music out of objects like stones and paper”可知,用石头和纸演奏音乐需要创造力。故选C。17.B【解析】句意:这个男孩足够强壮,可以搬那个重箱子。考查enough后置。too…to“太……而不能”,与strong有冲突,可排除;enough修饰形容词,需后置。故选B。18.B【解析】句意:如果我们不节约用水,未来将不会有足够的淡水。考查there be句型与将来时。“there be”句型表示“存在”,排除使用have表示“有”的A/D;结合“in the future”以及“if we don’t save it.”可知是将来时否定结构,即“there won’t be”,故选B。19.C【解析】句意:仅仅坐着听是不够的,你的大脑必须保持活跃才行。考查代词辨析和it的固定句型。This这个,指代空间或时间上较近的人或物;That那个,指代空间或时间上较远的人或物;It它。分析句子结构,前句中不定式“to just sit and listen”表示“仅仅坐着听”这件事,为真正的主语,应用it作形式主语。故选C。20.C【解析】句意:我认为小汤姆够不到架子上的苹果,因为他不够高。考查动词辨析。teach教授;accept接受;reach到达;伸手够得着;keep保持。根据“isn’t tall enough”可知,汤姆个子不高而够不到高处的物体。故选C。21.D【解析】句意:丹尼足够仔细地检查他的作文,以便能少犯错误。 考查副词及enough的用法。careful认真的,形容词;carefully 仔细地;enough足够的。根据“Danny checked his composition ... so that he could make less mistakes.”可知,此处需用副词“carefully(仔细地)”修饰动词“checked”,排除A、B;enough修饰副词时需后置,即“carefully enough”。故选D。22.A【解析】句意:——我认为自动驾驶汽车是未来。你觉得呢?——对我来说,它们还不够。考查形容词辨析。safe安全的;fair公平的;strange奇怪的。根据“I think self-driving cars are the future.”及常识可知,自动驾驶技术的核心争议通常围绕安全性展开,故空处指“不够安全”。故选A。23.B【解析】句意:为了拥有健康的生活方式,我们应该有均衡的饮食、充足的运动和睡眠。本题考查形容词词义辨析。patient耐心的;balanced均衡的;lucky幸运的;beautiful美丽的。根据“To have a healthy lifestyle”可知,健康的生活方式应该是吃的健康,即饮食均衡,同时进行运动和维持好的睡眠。“a balanced diet”是“均衡的饮食”,符合健康生活方式语境。故选B。24.A【解析】句意:——我爷爷过去常告诉我,熟能生巧。——确实是这样,足够的练习能帮助我们在任何事情上做得更好。考查宾语从句时态。分析句子结构可知,此句为宾语从句,且从句为客观真理,用一般现在时。主语为不可数名词“practice”,空处填动词三单形式的makes作谓语。故选A。25.B【解析】句意:——你能从《西游记》中学到什么?——我学习到我们应该有足够的勇气克服生活中的困难。考查名词词义辨析。danger危险;courage勇气;success成功;influence影响。根据“...to overcome the difficulties in our life.”可知,是克服困难的勇气。故选B。26.D【解析】句意:“用我们自己的双手劳动,我们将有足够的吃和穿。”告诉我们为什么我们应该依靠自己。考查宾语从句。how can we be rich我们怎样才能富有;what is made by hand什么是手工制作的;where can we find enough food我们在哪里可以找到足够的食物;why we should depend on ourselves我们为什么应该依靠自己。根据“…tells us …”可知,句子为宾语从句,应用陈述语序,排除AC选项;再由“Work with our own hands”可知,用自己的双手劳动, 体现了要依靠自己来获取衣食,很好地解释了为什么要依靠自己,应用why引导宾语从句。故选D。27.A【解析】句意:这个男孩足够年纪大,能去上学了。考查enough的用法。enough修饰形容词时需后置,old enough“足够年纪大”,故选A。28.D【解析】句意:如果你对侦探电影感兴趣,《唐人街探案1900》太有趣了,不容错过。这是我的菜!考查形容词及副词辨析。boring无聊的;interesting有趣的;too太;enough足够地。根据“It’s my cup of tea!”可知,此处表达对电影的喜爱,应是认为很有趣,可排除A项和B项;interesting enough虽然结构正确,但放在此处的含义是“足够有趣以至于错过”,不符合。故选D。29.D【解析】句意:我们所需要的是足够的时间。考查定语从句引导词。who谁;whom谁;whose谁的;that那个。根据“All… we need is enough time.”可知,本句是定语从句,先行词是不定代词“all”,当先行词是不定代词时,关系代词只能用“that”。故选D。30.B【解析】句意:这个男孩足够强壮,可以搬动那个重箱子。考查形容词和副词的用法。enough strong形式错误,enough应放在形容词之后;strong enough足够强壮;too strong太强壮;so strong如此强壮。根据“The boy is...to carry the heavy box.”可知,此处是在描述男孩足够强壮可以搬动重箱子,且enough修饰形容词时应放在形容词之后,所以应该用strong enough。故选B。31.B【解析】句意:有足够的睡眠,你很快就会好的。考查连词辨析。but但是;and那么;if如果;while当……时。根据“Have enough sleep, … you’ll get better soon.”可知,此处为固定句型“祈使句+and+陈述句”,表示如果做到保证充足睡眠,就会很快好转,应用and连接。故选B。32.D【解析】句意:他决定为村里的女孩筹集资金,这样她们就有足够的钱上学了。考查非谓语动词。decide to do sth.“决定做某事”,是固定搭配。故选D。33.A【解析】句意:屋里的光线不够让我来写作业。考查名词辨析。light光线;wind风;water水。根据“do my homework.”可知,写作业需要灯光。故选A。34.B【解析】句意:完成作业后,你必须仔细检查。考查副词用法及enough的位置。carefully仔细地,副词;careful仔细的,形容词;enough足够。空处修饰动词check,用副词形式,且enough应放于副词后面。故选B。35.D【解析】句意:——我的问题听起来够礼貌吗?——我不这么认为。你可以用“could”来更礼貌地问而不是“can”。考查副词辨析和副词的比较级。impolitely不礼貌地;politely礼貌地。根据“by using ‘could’ instead of ‘cam’”,可知,此处是用“could”和用“can”相比较,表示更礼貌地问,应用比较级。故选B。36.B【解析】句意:如果我足够努力地练习,我就不会失败。考查副词辨析。hardly几乎不;hard努力地;harder更努力地;hardest最努力地。根据“I can’t fail”可知,不会失败的前提应是努力练习,此处无比较语境,用hard。故选B。37.C【解析】句意:我计划下个月去北京旅行,我认为3000元足够了。考查主谓一致和时态。“3000 yuan”作为金额整体时,视为单数概念,谓语动词需用单数形式;根据“I plan”和“and”可知,“and”前后时态一致,句子为一般现在时态,所以be动词填is。故选C。38.D【解析】句意:他也想知道自己是否足够幸运能抓到一只。考查宾语从句。how怎样;where在哪里;what什么;whether是否。根据“He also wondered…he was lucky enough to catch one.”的语境可知,此处表示可能性或不确定性,指是否足够幸运能抓到一只,D项符合。故选D。39.B【解析】句意:聚会上有二十种食物。我认为这些足够满足所有人。考查动词辨析。imagine想象;satisfy满足;create创造;afford负担得起。根据“There are twenty kinds of food at the party.”可知,这么多食物可以满足所有人。故选B。40.A【解析】句意:——不要放弃。事情很快就会好起来的。——是的。我应该学会在遇到困难时足够勇敢。考查形容词辨析和enough用法。brave勇敢的;sad伤心的;angry生气的;enough修饰形容词或副词时,要放在形容词或副词的后面,排除B;根据“Don’t give up. Things will be fine soon.”和“when in trouble”可知,此处是指遇到困难时应该学会足够勇敢,不要放弃,事情很快会好起来的,应用“brave enough”,排除C和D。故选A。41.B【解析】句意:在课堂上,如果你知道老师问题的答案,你应该鼓起勇气举手回答。考查动词辨析。rise升起;raise举起;rose升起(过去式)。根据“if you know the answer to the teacher’s question”可知,如果知道答案,应该鼓起勇气举手回答。raise your hand举起手,故选B。42.C【解析】句意:——这个周末你能帮我组织一次环保活动吗?——没问题。我总是愿意为环境做点什么。考查情景交际。It depends看情况;I’ve had enough我受够了;No problem没问题;Don’t mention it别提了。根据“I’m always willing to do something for the environment.”可知,应回答没问题。故选C。43.D【解析】句意:——我想读点东西。你愿意给我一些有趣的东西来读吗?——让我想想。考查不定代词及副词的用法。“Would you please…”句型表示请求,想要得到对方的肯定回答,因此问句中应用“something”,排除选项A和B;enough“足够”修饰形容词或副词时,应放在形容词或副词的后面。故选D。44.B【解析】句意:——那边的新电脑大约5000元。——哦,我没有足够的钱。价格太高了。考查形容词辨析。low低的;high高的;expensive昂贵的。价格(price)的高低应用形容词high和low来表达;根据“I don’t have enough money.”,说明价格太高。故选B。45.D【解析】句意:据说河里的水将足够干净,我们可以喝。考查固定结构。too...to...太……而不能;enough...to...足够……能做某事;so...to...表达错误。enough修饰形容词需要后置,根据语境可知,此处表达的是“河里的水足够干净可以喝”,too...to...不符合语境。故选D。46.D【解析】句意:公园的大门不够宽,所以汽车必须一辆接一辆地通过。考查动词短语。join in加入;look across眺望;look over浏览;go through通过。根据“The gate of the park is not wide enough”可知,此处指汽车通过大门。故选D。47.B【解析】句意:——我应该付你多少钱买这张CD?——12美元就够了。考查特殊疑问句和be动词。How much多少,询问价格;How many多少;are用于第二人称或人称复数;is用于第三人称单数。第一空根据“money should I pay (支付) you for the CD ”可知,此处对价格进行提问,应用how much;第二空主语“$12”表示金钱,作主语时谓语动词用单数形式,因此be动词用is。故选B。48.D【解析】句意:我们的鞋子尺码不一样。我的鞋对我来说足够大了。考查介词辨析和enough后置。on在……上面;from来自;for为了;in在……里面。enough修饰形容词big时,需要后置,big enough“足够大”,排除A和C;根据“Our shoes are different...size”可知,此处使用in,表示“在尺寸方面”。故选D。49.A【解析】句意:——我的梦想是成为一名医生。——我也是。医生勇敢地与疾病作斗争,他们是我的英雄。考查名词辨析。heroes英雄;winners赢家;bosses老板;leaders领导者。根据句意可知,医生勇敢地与疾病作斗争,这是英雄的行为。故选A。50.B【解析】句意:女孩年龄足够大可以自己去上学。考查enough 的用法。enough修饰形容词或副词时,要放在所修饰词的后面。根据语境可知,女孩年龄足够大可以自己去上学,old enough 表示 “年龄足够大” 。故选B。21世纪教育网(www.21cnjy.com)21世纪教育网(www.21cnjy.com) 展开更多...... 收起↑ 资源预览