主语 need to do sth-2025-2026学年七年级英语上册句型全解（北师大版）

初一上册北师大版 【寒假专版】A版句型全解 寒假专版 【A版句型全解】主语+need to do sth 初中·北师大版·初一上册 基本结构 句型结构：主语+need to do sth need在此处为实义动词，意为“需要”，to do sth为不定式作宾语 主语为人称代词时需用主格形式(I/you/he/she/itwe/they等) 例句展示： I need to finish my homework first..(我需要先完成我的作y业) They need to buy some books for the new term.(他们需要为新学期买一些书) 句型精讲（核心考法） 考法1：need的词性及用法辨析 判断规则+例句对比 规则1：need作实义动词，后接不定式to do sth,有人称和数的变化，否定形式为don't/doesn't/didn't need to do sth. 例句：He needs to finish his homework first.(他需要先完成作业) 否定句：She doesn't need to come early tomorrow.(她明天不需要早来) 规则2：need作情态动词，后接动词原形，无第三人称单数变化，否定形式为needn't do sth. (常用于疑问句和否定句，初一阶段主要掌握实义动词用法) 例句：Need I call him back now?(我需要现在给他回电话吗？)→初一阶段更侧重实义动词 用法，此规则作为拓展了解 考法2：句型的否定句转换 1 初一上册北师大版 【寒假专版】 A版句型全解 转换规则+例句转换 规则：主语+don't/doesn't/didn't need to do sth.(根据主语人称和时态变化助动词) 例句I:原句They need to buy some fruit.(他们需要买些水果) 否定句：They don't need to buy any fruit. 例句2：原句Tom needs to clean his room.(汤姆需要打扫房间) 否定句：Tom doesn't need to clean his room 考法3：句型的一般疑问句转换 转换规则+例句转换 规则：Do/Does/Did+主语+need to do sth.?(根据主语人称和时态变化助动词，第一、二人 称及复数用do,第三人称单数用does,过去时用did) 例句l:原句We need to study for the test..(我们需要为考试学习) 疑问句：Do we need to study for the test? 例句2：原句She needs to go to the library.(她需要去图书馆) 疑间句：Does she need to go to the library? 考法4：对不定式部分(to do sth..)提问 提问规则+例句提问 规则：What+do/does/did+主语+need to do?(疑问词what替换不定式部分，后接一般疑 问句语序) 例句：原句He needs to write a letter.(他需要写一封信) 问句：What does he need to do? 真题再现（北师大版初一上册Unit5单元测试） They need to buy some books.(对划线部分提问) 答案：What do they need to do 初一上册北师大版 【寒假专版】A版句型全解 解析：对不定式部分提问，用What”开头，后接一般疑问句语序 考法5：人称和时态变化在句型中的应用 变化规则+例句对比 规则：主语为第三人称单数(he/she/it)时，实义动词need后加s,即needs to do sth.:过去 时态中用needed to do sth. 例句l:He needs to practice English every day..（他需要每天练习英语) 例句2：I needed to finish my homework last night..(我昨晚需要完成作业) 真题再现（北师大版初一上册期中测试） My mother to go shopping this afternoon Aneed B needs Cneeding Dneeded 答案：B 解析：主语My mother是第三人称单数，一般现在时中实义动词need用第三人称单数形式 needs 句型综合训练 训练1：单项选择（考察need的词性及用法辨析、人称和时态变化） 1.She to finish her homework before dinner. Aneed B needs Cneeding Dneeded 2.They to attend the meeting yesterday. A don't need B doesn't need C didn't need D needn't 3 初一上册北师大版 【寒假专版】 A版句型全解 3. he need to call his parents now? ADo B Does CDid DIs 4.My father to buy a new car last month A need B needs C needed Dneeding 5.It's late,so we to leave immediately. A don't need B doesn't need Cneedn't Dneed 训练2：同义句转换（考察句型的否定句、疑问句转换及对不定式部分提问） 1.He needs to clean the classroom.(改为否定句) →He to clean the classroom. 2.We need to prepare for the exam.(改为一般疑问句) → need to prepare for the exam? 3.They need to buy some vegetables.(对划线部分提问) they need to? 4.She needs to finish her report by Friday..(改为否定句) →She to finish her report by Friday. 5.Tom needs to visit his grandparents.(改为一般疑问句) Tom to visit his grandparents? 训练3：完成句子（考察need to do sth.句型的运用） 1.我们需要每天练习英语。 →We English every day. 2.她不需要这么早出发。 →She leave so early. 4 初一上册北师大版 【寒假专版】A版句型全解 3.他们昨天需要参加一个重要的会议。 →They an important meeting yesterday. 4.你需要先完成你的作业吗？ →y0u finish your homework first? 5.他需要在周末打扫他的房间。 →He his room on weekends. 训练4：写作高级句式（考察need to do sth.句型的翻译） 1.为了保持健康，我们需要每天锻炼。 →To keep healthy,we every day. 2.学生们需要认真听老师讲课。 →Students to the teacher carefully. 3.我们不需要带太多行李去旅行。 →We too much luggage for the trip. 参考答案 I训练1：单项选择 1.B2.C3.B4.C5.A Ⅱ.训练2：同义句转换 1.doesn't need 2.Do we 3.What do;do 4.doesn't need 5.Does;need 江.训练3：完成句子 1.need to practice 2.doesn't need to 3.needed to attend 4.Do;need to 5.needs to clean V.训练4：写作高级句式 1.need to exercise 2.need to listen 3.don't need to take 5