内容正文:
初一上册北师大版
【寒假专版】
C版need to do sth句型辨析
寒假专版
【C版句型辨析】need to do sth结构精讲
初中英语·北师大版初一上册
句型辨析精讲
辨析一need to do sth vs have to do sth
维度
need to do sth
have to do sth
含义侧重强调内在需求或必要性(主
强调客观条件迫使(不得不
观认为需要)
做,有被动含义)
否定形式don't need to do(不需要做)
don't have to do needn't do
(不必做)
时态变化
有人称和时态变化(needs to有人称和时态变化(has to do
do needed to do)
/hadto do)
例句对比
I need to study hard for the exam.(主观认为有必要)
I have to stay at home because it's raining heavily.(客观天气迫使)
真题链接(北师大版初一上册期末真题)
-Do you finish the work today?
-No,you.You can finish it tomorrow.
A.need to;needn't
B.have to;don't have to
C.need:mustn't
答案:A解析:第一空后接动词原形finish,用need to do:第二空表”不必”,用needn't,选A。
初一上册北师大版
【寒假专版】
C版need to do sth句型辨析
辨析二need to do sth vs need doing sth
维度
need to do sth
need doing sth
语态关系
主动语态,主语是人(人需要
被动含义,主语是物(某物需
做某事)
要被做)
逻辑主语主语是动作的执行者
主语是动作的承受者(-need
to be done)
例句对比
e need to clean the room.(我们需要打扫房间,主动)
The room needs cleaning.(房间需要被打扫,=The room needs to be cleaned)
真题链接(北师大版初一上册同步练习)
The broken bike repairing.Let's ask Tom for help.
A.need to
B.needs
C.need
答案:B解析:主语是物(broken bike),用need doing sth:主语是第三人称单数,need用第三
人称单数形式needs,选B。
辨析三need to do sth vs had better do sth
维度
need to do sth
had better do sth
语气强度
陈述必要性,语气较平和
表建议或警告,语气更强烈(”
最好做某事”)
否定形式don't need to do(不需要)
had better not do(最好不要
做)
例句对比
You need to drink more water every day.(陈述健康需求)
You had better not play computer games too late.(警告不要熬夜)
真题链接(北师大版初一上册月考真题)
2
初一上册北师大版
【寒假专版】C版need to do sth句型辨析
-It's cold outside.You wear warm clothes.
-OK,I will.
A.need to
B.had better
C.both A and B
答案:C解析:”天冷需要穿暖衣'(need to)和'最好穿暖衣”(had better)均符合语境,选C。
辨析四need to do sth vs must do sth
维度
need to do sth
must do sth
必要性来源
基于主观判断或常规需求
基于客观规则、义务或强制要
求
否定含义
否定表”不需要,(don't need否定表禁止”(mustn't)
to)
例句对比
I need to buy a new pen.(主观觉得笔该换了)
I must finish my homework before dinner.(客观规则要求)
真题链接(北师大版初一上册期末真题)
-I return the book today?
-No,you.You can keep it for three days.
A.Need;needn't
B.Must:mustn't
C.Must;needn't
答案:C解析:第一空表”必须今天还书吗”,用must:第二空表不必”,用needn't,选C。
综合训练
3
初一上册北师大版
【寒假专版】
C版need to do sth句型辨析
1.You finish your homework before watching TV.It's the rule of our family.
A.need to
B.have to
C.had better
2.The flowers in the gardenwatering.They are a little dry.
A.need
B.needs
C.need to
3.-It's getting late.You go to bed now.
-OK,Mom.
A.need to
B.had better
C.both A and B
4.-Must I clean the room right now?
-No,you.You can do it after dinner.
A.needn't
B.mustn't
C.don't need
从need to do sth/need doing sth/have to do sth/had better do sth中选择合适的短语并用其适当形式
完成句子
1.We
(study)hard for the coming exam.(主观认为有必要)
2.My bike is broken.It
epair).(某物需要被做)
3.You
(ot play)football in the street..It's dangerous.(警告不要做某事
4.He
(stay)at home yesterday because he was ill.(客观情况迫使)
1.The room needs to be cleaned.(用need doing sth改写)
2.You had better drink more hot water.(改为否定句)
4
初一上册北师大版
【寒假专版】C版need to do sth句型辨析
3.I need to buy a new schoolbag.(用must改写,强调客观规则
阅读短文,选择合适的词语填空,使短文通顺连贯
1.Hello,everyone!I'm Mary.Today is Sunday,but I(have to need to)go to the library because I
borrowed a book and it's due today.The library is a bit far,so I(had better/need to)leave early.
2.When I get to the library,I see a sign that says"Books(need to retumn/need returning)on time"
I find my book and give it to the librarian.She tells me I(needn't mustn't)hurry,but I want to
go home to finish my homework.I think I(need to /had better)finish my homework first and then
watch TV.
I单项选择
1.B2.A3.C4.A
IⅡ.选短语填空/完成句子
1.need to study 2.needsrepairing
3.had better not play 4.had to stay
ⅡI.句型转换
1.The room needs cleaning.
2.You had better not drink more hot water.
3.I must buy a new schoolbag.
V.语篇填空
1.have to
2.had better 3.need returning
4.needn't 5.need to