《2025年创新设计高中英语必修第一册北师大版》

二、“疑问词+不定式”结构
[先感知]
①How to prevent them from swimming in this river is a problem.
②He sat there, not knowing what to say. (译林版必修三 U3)
③My main concern is how to get there on time. (人教版选择性必修三 U2)
[会发现] 句①为“疑问词+不定式”作主语；
句②为“疑问词+不定式”作宾语；
句③为“疑问词+不定式”作表语。
[明规则] 疑问代词(who、which、what 等)和疑问副词(how、when、where 等)后可加动词不定式构成不定式短语，在句中可作主语、表语或宾语。

答案： 二、会发现
主语 宾语 表语

三、不定式的否定式
[先感知]
①The doctor advised me not to smoke.
②Father warned me never to drive after drinking.
[会发现] 句①②为不定式的否定形式。
[明规则] 将否定词 not 或 never 置于不定式之前，即构成 not to do 或 never to do 的形式。
小题集训 3 单句语法填空/完成句子
①When we arrived, Thomas told us never to leave (leave) the group.
②A lecture given by a psychology professor on how to cope (cope) with pressure was held yesterday.
③When to set off for Beijing hasn’t been decided.
什么时候动身去北京还没有决定。

答案： 三、会发现
否定
小题集训3
①to leave ②to cope ③When to set off for Beijing

一、句法功能
[先感知]
①Not all of us were frightened at the news he told us.
②When he heard the words, there was a satisfied smile on the expert’s face.
③The intense study made me stressed greatly.
④Many of us usually think it boring to re-vise the knowledge we have learnt.
⑤The man often uses his frightening look to scare the naughty boys away.
⑥Unfortunately, the injury on his back is becoming more serious, which is worrying.
[会发现] 句①⑥中 -ed / -ing 形容词在句中作 表语；句②⑤中 -ed / -ing 形容词在句中作 定语；句③④中 -ed / -ing 形容词在句中作 宾语补足语。
[明规则] -ed / -ing 形容词在句中可以用作定语、表语和宾语补足语。

答案： 一、会发现
表语 定语 宾语补足语