Unit5 Grammar（enough和enough to的用法& too和too... to的用法）2025-2026学年译林版英语八年级下册

8BUnit5Grammar(enough和enough to的用法& too和too... to的用法) enough 和 enough to 的用法 一、enough的用法 1.enough作形容词,可以用在复数名词或不可数名词前,表示"足够的,充足的"。如: There is enough room for you.有足够的地方给你。 To really understand the culture of a country, try to visit enough places. 要真正了解一个国家的文化,不妨多去一些地方走走。 2. enough可以作名词、代词,意思是“足够;充分”。作代词可以代替可数名词或不可数名 词,在句中作主语或宾语。当其作主语的时候,看作单数。如: Enough has been said on this problem.关于这一问题说得已经足够多的了。(作名词) -Would you like another cup of tea? -No, thanks. I’ve had enough. 不,谢谢。我已喝够了。(enough= enough tea)(作代词) 当enough后的名词前有冠词、形容词性物主代词、指示代词或其本身就是代词时,要用介词 of。如: We’ve had enough of your coldness.我们已经受够了你的冷漠。 3. enough作副词,意思是“十分地;充分地;足够地;充足地”,修饰形容词、副词或动词, 位于所修饰词之后,常与不定式to或介词for连用,在句子中作状语,表示程度。如: Stay in each place long enough to get to know the local traditions. 在每个地方停留足够长的时间,以了解当地的传统。 (修饰形容词) Please wait patiently enough to let everyone get their turn. 请耐心等待,确保每个人都有机会。(修饰副词) He knows the situation well enough.他对形势了如指掌。(修饰动词) 4. enough作感叹词时意思是“够了;停止;住手;不要再继续了”,用以表达不耐烦或恼 怒。如:You’ve been practising the violin all afternoon. Enough! 你整个下午都在练小提琴。 够了! 【注意】我们在使用enough时,需要注意以下几点: 1. enough不能与no连用。如: I have no enough money to buy a car. (X) I don't have enough money to buy a car. (√) 2. enough用作形容词时不可被very修饰,但可以用quite修饰。如: We have quite enough time.我们有足够的时间。 3. 在“主语+cannot/can never…+enough”句型中,否定句型表达的是肯定意义,表示“越……越……;无论怎样……也不过分”。如: You can never be careful enough. 你越细心越好。 We can't praise him enough.我们无论怎样赞美他也不过分。 二、enough to 的用法 我们可以用"be+ adjective+ enough+ to do"的结构来描述一个人的品质和能力;含义是“足够……去做某事(表能力/结果)”;如: Confucius is wise enough to be one of the greatest ancient Chinese thinkers.孔子十分睿智,是中国古代最伟大的思想家之一。 The girl is not brave enough to go near the dog.这个女孩胆子不够大,不敢靠近那只狗。 同义替换:so...that...(肯定句)(如此……以至于……)如: 他年纪足够大了,可以去上学。 He is old enough to go to school. = He is so old that he can go to school. 在许多国家,人们有足够的耐心在银行和商店排队。 In many countries, people are patient enough to wait in line in banks and shops. = In many countries, people are so patient that they can wait in line in banks and shops. too和too...to的用法 一、too的用法 1. too作副词,可用在形容词和副词前,表示"太,过于,过度"。如: This bag is too heavy for me。这个包对我而言太沉了。(修饰形容词) Don't talk too loudly. 不要大声说话。(修饰副词) 2.作副词,用于肯定句句末,常用逗号隔开,表“也”。如: I like apples, too.我也喜欢苹果。 3.我们用 too many 与可数名词复数形式搭配,用too much 与不可数名词搭配。如: To enjoy world travel fully, avoid too much planning all at once. 为了充分享受环球旅行,避免同时进行过多的计划。 Trying to do too many things can be too tiring.试图做太多事情会太累。 二、too...to的用法 1.我们可以用"be+ too+ adjective+ to do"的结构来表达因某个原因而没有完成某个动作或达到某种状态。如: He is too tired to go swimming.他太累了,没法去游泳了。 The water is too hot to drink.水太烫了,还不能喝。 2.我们可以在动词不定式前加介词for引出逻辑主语。同义替换:so...that...(否定句)(如此……以至于不能……)如: The box is very heavy. The little boy cannot carry it.盒子太重了,这个小男孩搬不动。 = The box is too heavy for the little boy to carry. = The box is so heavy that the little boy cannot carry it. The apple is very high. The child cannot reach it.苹果太高了,这个孩子够不着。 =The apple is too high for the child to reach. = The apple is so high that the child cannot reach it. 3. too...to结构和never一起使用时表示肯定。如: One is never too old to learn.活到老,学到老。 4. "be+ too+ adjective+ to do"相当于"be+ not+ adjective +enough +to do",通常在第二种结构中使用的形容词是第一种结构中使用的形容词的反义词。如: The little girl is too young to go to school.这个小女孩年纪太小,还不能上学。 = The little girl is not old enough to go to school. In many countries, people are too polite to jump the line in banks and shops. 在许多国家,人们非常有礼貌,不会在银行和商店里插队。 = In many countries, people are so polite that they can’t jump the line in banks and shops. 5.特殊结构:too...to... 前加 not not too...to...(不太……可以……);如: The water is not too hot to drink.水不太热,可以喝。 Ten years is not too short or too long.十年既不是很长也不是很短。 巩固练习: 一、单项选择 1. - Do you need me to show you how to play this game? - No, thanks. I find this game _ to play. A. easy enough B. enough easy C. easily enough D. enough easily 2. - Shall we invite Jack to play football with us? - I'm afraid that's not a good idea. He is too busy _ on his project _ football with us. A. working; to play B. to work; to play C. to work; playing D. working; playing 3. -It's reported that an 80-year-old man is planning to travel around the world within a year. -I don't think that's surprising at all. One is never _ to enjoy life. A. too young B. too old C. old enough D. so old 4. In the Tang Dynasty, the great poet (诗人) Du Fu had a dream and he hoped everyone would be _ to have a big house _ . A. lucky enough; to live with B. too lucky; to live in C. lucky enough; to live in D. too lucky; to live 5. —The box is _ for me to carry. Who can help me? —I think Simon is _ to do it. A. too heavy; too strong B. so heavy; enough strong C. too heavy; strong enough D. so heavy; too strong 二、同义句转换 1. Tom is very clever and often gets good marks in his exams. Tom _ _ _ _ get good marks in his exams often. 2. The man is very tired. He can't walk any more. The man _ _ _ _ any more. 3. Lily isn’t tall enough to reach the comic book on the bookshelf. Lily is _ _ _ _the comic book on the bookshelf. 4. The maths problem isn’t difficult and anyone can work it out. The maths problem is _ _ _ anyone _ _ out. 5. The book is so expensive that I can’t buy it. =The book is _ expensive for_ _buy. =The book is _ _ _ for_ _buy. 答案: 一、单项选择 1-5:AABCC 二、同义句转换 1. Tom is clever enough to get good marks in his exams. 2. The man is too tired to walk any more. 3. Lily is too short to reach the comic book on the bookshelf. 4. The maths problem is easy enough for anyone to work out. 5. The book is so expensive that I can’t buy it. =The book is too expensive for me to buy. =The book is not cheap enough for me to buy. 2 学科网(北京)股份有限公司 $