6.2【核心句式】-2021-2022学年八年级英语下册链接教材精准变式练（人教版）

Unit 6 An old man tried to move the mountains. ( 教材 核心句式 知识链接 及典例解读 ) 一、“形容词／副词＋enough+to do sth.”结构 【教材原句】Yu Gong said they could put it into the sea because it's big enough to hold everything.愚公说他们可以把它放进海里，因为海足够大，可以容纳所有东西。 【句式结构】“形容词／副词＋enough+to do sth.”意为“足够······可以做某事”。在此结构中，当动词不定式结构的逻辑主语与句子的主语不相同时，常用for引出动词不定式的逻辑主语。 The question is easy enough for him to answer.这个问题足够简单，他能回答上来。 【联想拓展】该结构的否定形式可以和“too+形容词／副词＋to do sth.”结构或“so+形容词／副词＋that...”结构相互转换。 The little girl isn't old enough to go to school.＝The little girl is too young to go to school.这个小女孩太小，不能去上学。 The problem isn't easy enough for him to work out.=The problem is so difficult that he can't work it out.这个问题太难，以至于他解不出来。 典例 ①[甘肃天水中考］His joke is to make us all . A.enough funny;laugh B.funny enough;laugh C.enough funny;to laugh D.funny enough;to laugh 【解析】句意为：他的笑话足够搞笑，使得我们都大笑起来。enough 修饰形容词或副词时要放在所修饰的 形容词或副词之后，故第一空用funny enough;使役动词make后跟动词不定式结构作宾语补足语时要省去不定式符号to,即make sb.do sth.,意为“让某人做某事”，故第二空用laugh. 【答案】B ②[湖南郴州中考］－May I be allowed to choose a summer course? －It's up to you. You're to make your own decision. A.too old B.enough old C.old enough 【解析】句意为：－我可以被允许选择一门暑期课程吗？－由你决定。你足够大了，可以自己做决定。 结合语境可知此处用“be+形容词＋enough+to do sth.”结构表示“足够···...可以做某事”。 【答案】C 二、What引导的感叹句 【教材原句】What a long time you slept in the forest!你们在森林里睡了这么长时间！ 【句式结构】What引导的感叹句的结构为“What+a/an+形容词＋可数名词单数（＋主语＋谓语）！”或 “What+形容词＋可数名词复数或不可数名词（＋主语＋谓语）！” What an interesting story you tell us!你给我们讲了一个多么有趣的故事！ 【联想拓展】How也可引导感叹句，常见的结构有： ①How+形容词＋a/an+可数名词单数（＋主语＋谓语）！ ②How+形容词＋可数名词复数或不可数名词（＋主语＋谓语）！ ③How+形容词或副词（＋主语＋谓语）！ What an old building that is!=How old a building that is!那栋建筑太旧了！ 典例［贵州安顺中考］ － fresh air it is now! －Yes. go out for a walk. A.How;Let B.What a;Let's C.What;Let's D.How;Let us 【解析】句意为：－现在的空气多么清新啊！－是啊。让我们出去散步吧！分析句子结构可知第一句是由What引导的感叹句，且air是不可数名词，不能用不定冠修饰；第二句是祈使句，所指对象包含说话者和听话者，所以用Let's. 【答案】C 一、单项选择 1．Little Tommy is ________ to come up with this wo