句型转换。1.Shecan'tcomeherebecauseshehasnotimethesedays.(对划线部分提问)____________shecomehere?2.Motherboughthimanewbikeasabirthdaypresent. (变一般疑问句-八年级英语
therefore作为连接副词,位于句子的句中。
3.有些连接副词的含义彼此相同或相近,在使用时可以互相替换,而不会改变原句的含义。
The weather was cold. Therefore(Thus), we stayed home.天气寒冷,因此我们待在家里。
therefore和thus的含义相近,因而也可以互相替换。
在应用时要注意以下两点:
一是它们在构成疑问句时叫疑问词,引导宾语从句时称作引导词。
一是它们和that不一样,在从句中有含义,担任相关的句子成分,所以不能省略,另外,它们须放在宾语从句之首,宾语从句必须是陈述句结构。
连接词:that, whether, if, as if, as though(不充当从句的任何成分,但绝不能省略)
连接代词:what, whatever, who, whoever, whom, whomever, whose, which, whichever.
连接副词:when, whenever, where, wherever, how, however, why
不可省略的连词:
1. 介词后的连词
2. 引导主语从句和同位语从句的连词不可省略。
That she was chosen made us very happy.
We heard the news that our team had won.
大部分连接词引导的主语从句都可以置于句末,用 it充当形式主语。
It is not important who will go.
It is still unknown which team will win the match.
考点名称:助动词的单数第三人称形式
- 助动词的单三形式:
助动词
be
do
have
shall
will
单三形式
is
does
has
shall
will
考点名称:一般疑问句
- 一般疑问句:
是疑问句的一种。通常用yes,no来回答的疑问句叫做一般疑问句。口语中若无特殊含义,句末用升调。
其结构是:系动词be/助动词/情态动词+主语+其他成分?
通常回答为:
肯定:Yes+主语+提问的助动词
否定:No+主语+提问的助动词+not
例如:
Are you from Japan? Yes, I am./No, I'm not.
Do you live near your school? Yes, I do./No, I don't.
Can you speak French? Yes, I can./No, I can't. - 一般疑问句的特性:
1.将陈述句变为一般疑问句时,如句中有be 动词(am/ is/ are)时,可直接将它们提至主语前。
如主语为第一人称,应将其改为第二人称。如:
I'm in Class 2Grade 1. →Are you in Class 2Grade 1﹖
We're watching TV. →Are you watching TV﹖
2.陈述句中有情态动词(can、may、must …)时,也可直接将它们提至主语前,即可成为一般疑问句。如:
He can swim now. →Can he swim now﹖
The children may come with us. → May the children come with us﹖
3.陈述句中只有一个实义动词作谓语且其时态为一般现在时,变为一般疑问句时要在句首加do或does主语后的实义动词用原形。如:
I like these animals. →Do you like these animals﹖
She wants to go to the movies. → Does she want to go to the movies﹖
4.一般疑问句一般读升调(↑)
5.一般疑问句有时不用yes或 no 回答。如:
Are they in town now﹖
I think so.
May I sit here﹖
Certainly.
Does he like soccer﹖
Sorry I don't know.
6. 一般疑问句的第一单词总是虚词,读的时候要读轻声。 - 陈述句变为一般疑问句技巧:
根据一般疑问句不同的家族,可以用不同的方法将陈述句变为相应的一般疑问句。
1、第一家族:含be动词或情态动词的句子
秘诀:一调二改三问号
一调:即把句中的be或情态动词调到主语前;
二改:改换主语称谓,即将句中的主语I\my \mines\we\our\ours等。第一人称分别改为相应的第二人称you\your\ yours等;
三问号:句末的句号改为问号。如:
Eg. I am an English teacher. → Are you an English teacher?
Eg. We can speak English fluently. → Can you speak English fluently?
2、第二家族:含行为动词(或称为实义动词)的句子
秘诀:一加二改三问号
一加:即在句首加助动词Do或Does;
二改:1、把谓语动词改为原形;2、改换主语称谓(同第一家组);
三问号:句末的句号改为问号。
Eg. We read English every morning. → Do you read English every morning?
Eg. Tom’s father listens to English on the radio every evening. →Does Tom’s father listen to English on the radio every evening?
特别注意:对于第二家族一定要注意动词的还原,因为时态与数的变化已经体现在助动词上了。
3、加强记忆口诀:
肯变一,并不难,can 或be提在前;
谓语若为行为动,do 或does句首用。
考点名称:疑问词组
- 疑问词组:
即使由疑问词和一些词一起构成的表示疑问的词组。由how/what与另外一个词组成的词组。
例如:
how many (后接可数名词,多少), how much (后接不可数名词,多少),
how often (表示频率), what if (如果…将会怎么样),
what about (…怎么样), what time (几点) 与how搭配的疑问词组:
How在英语中通常用作副词,是特殊疑问句中本领最大的疑问词。他与其它形容词或副词搭配组成疑问词组
1.How old问年龄、年代。
How old is your friend? 你朋友多大了?
How old is the bridge? 这座桥有多少年代了?
2.How many问可数名词数量。常将可数名词复数紧随其后。如:
How many pictures are there on the wall? 墙上有多少幅画?
How many glasses of milk would you like? 你们想要几杯牛奶?
3.How much询问不可数名词的数量、物品的价格。
How much money is there in the purse? 钱包里有多少钱?
How much are the apples at the moment? 目前苹果什么价钱?
4.How long提问物体的长度、时间的长短。
How long is the Changjia River? 长江有多长?
How long does it take you to do your homework every day?
你每天花多长时间做作业?
5.How soon 对 “in+一段时间 ”提问, 表示“多久之后”。
How soon will you be back? 你多久后回来?
6.How often对表示频率的副词或短语提问。
How often does Mrs. Green go shopping? 格林夫人多久去购一次物?
7.How about用来征求对方意见。
Your father is a worker, how about your mother? 你父亲是工人,你母亲呢?
How about playing games after school this afternoon? 下午放学后做游戏怎么样?
8.How far 问两地间的距离How tall问人(树)的高度;how heavy问重量;how wide问宽;how high可以询问建筑物、山峰高度。
How far is it from the earth to the moon? 从地球到月球有多远?
How tall is Yao Ming? 姚明身高多少?
How heavy is that big box? 那只大箱子有多重?
How wide is the new street? 这条新街有多宽?
How high is the tower in Paris? 巴黎的那座塔有多高?
与what搭配的疑问词组: