Unit+5+Working+the+Land+Subject+Clauses主语从句的几大问题+课件-2025-2026学年高中英语人教版（2019）选择性必修第一册

主语从句的几大问题

1.语序？陈述语序：Who

will

gototheconcertisnotknown.Whethertheywillcooperatewithusisstillunknown.2.位置？（1）句首：Thatshesurvivedtheaccidentisamiracle.（2）句末：用形式主语it代替Itisamiraclethatshesurvivedtheaccident3.引导词：和其他的名词性从句大同小异（1）that(不作成分；无词义；陈述事实，不含疑问;不能省略。)Thatshesurvivedtheaccidentisamiracle.（2）whether(不作成分；有词义；含有疑问“是否”；不能省略)；if必须有条件作为表“是否”引导词使用（前面用先行词it代替，将if从句放在后面）。Whether

they

will

cooperate

with

us

is

still

unknown.Itisunclearwhether/ifhelikesthepresent.应试法则：表“是否”时都用whether。注意：if还可以引导条件状语从句，表“如果”而whether不行。（3）疑问引导词

A.who(m)/what/which;

B.when/how/where/why;

C.whoever/whatever/whicheverWho/what的区别：who指人what指事物

相同点：作主语、宾语；what、which还可作定语Whowillgototheconcertisnotknown.主语Who(m)youinvitedsurprisedme.宾语WhatmadehersadwasthatshefailedtheEnglishexam.主语Whatweneedmostarepopularsciencebooks.宾语Whatcausedtheexplosionremainsamystery.含疑问Whatrolehewillplayinthefilmhasn’tbeenknown.定语Whosebookthisisremainsamystery.定语A.连接代词Who/what/which、whose要作成分；有词义；含有疑问（注意：what表“所…的”时候没有疑问”如：Whatshesaid/knew/did…is….）；不能省略What和which作定语的区别：

先看以下两个句子：

Whatbookdoyoulike?(不限定具体书籍，无预设范围，询问未知事物或泛指类别。)

Whichbookdoyouprefer,thisoneorthatone?(在指定书籍间选择)

练习：

1.______rolehewillplayinthefilmhasn’tbeenknown.

2.______designisthebestmustbetriedinpractice.

分析：第1题中没有明确的范围，属泛指类别，应填What;

第二句中有“thebest”表明是在具体的几个中进行比较、选择，应填Which.

Whose作定语表示“谁的”Whose

fault

it

was

became

clear

after

the

investigation.B.when/how/where/why作状语的区别：分别作时间、方式、地点、原因状语

解题策略：分析从句的句意找出所差的信息，然后选用相应的引导词。1.______Johnwaslatefortheclasshasbeenunexplained.2.______itwasdonewasamystery.3.______thepartywillbeheldhasnotbeendecided.解析：第1题根据句意应该得出本空应该表达迟到的“原因”，所以填Why;第2题可以分析出句中差这件事做的方式、时间、地点，所以可填How/When/Where；第3题需要的意义是时间和地点，所以可填Where/When。C.whoever/whatever/whichever作成分；有词义；不含疑问；不能省略；翻译为“无论谁、什么、哪一个（些）；任何的事物、人…”

Whoever=anyonewho;whichever=anyone/anythingthatWhatever=anythingthatwhat=thething(s)thathow=thewayinwhichwhy=thereasonwhyWhere=theplacewherewhen=thetimewhen4.主谓一致(1)主语从句作主语时，主句的谓语动词一般用单数形式。What引导主语从句时，有时主句谓语动词应与主句中作表语的名词保持一致。Whatheneedsmostismoney.Whattheschoolneedsmostarebooks.(2)如果由and连接两个或两个以上的主语从句作主语时，谓语动词用复数形式；由两个或多个连接词引导一个主语从句时，谓语动词用单数形式。Whentheywillstartandwheretheywillgohavenotbeendecidedyet.Whenandwheretheywillholdthemeetingisnotclear.解题策略：分析判断原句是否差成分，1.不差的话就考虑that或whether，再看差不差“是否”意义，不差就填that，差就填whether；2.差成分的话，就要继续思考差什么成分，差主语、宾语就考虑who、what、which；差定语考虑用what、which、whose；差状语就考虑when、where、why、how；3.如果既差成分作主语、宾语又需要表达无论、不管的意义就考虑whoever、whatever、whichever。练习：用适当的连接词填空1._________shesurvivedtheaccidentisamiracle.2._________teamwillwinthematchisstillunknown.3._________comestothepartywillreceiveapresent.4._________(ofyou)comesinfirstwillreceiveaprize.5._________itwasdonewasamystery.ThatWhichWhoeverWhicheverHow/When/Where6._________thepartywillbeheldhasnotyetbeendecided.7._________priceswillgoupiscertain.8._________carswillbeparkedin