3．本单元的语法项目①情态动词have to与②系动词。要掌握他们的用法必须在了解他们基本含义的基础上，通过一定量的口头和书面练习。
词汇辨析
1. too much / much too
too much意为“太多”，常修饰不可数名词或行为动词；而much too意为“太”，常修饰形容词或副词，以加强语气。如：
He always eats too much meat, so he is much too fat. 他总是吃太多的肉，因此他太胖了。
You talked too much at the meeting. 你在会上讲得太多了。
另外，too much也可以单独用，相当于一个名词或代词。如：
He is a kind man and often gives too much but gets too little. 他是个好心人，经常付出的多而得到的回报少。
2. instead / instead of
instead与instead of都有“代替”之意，instead 后不跟其它成分，通常置于句末作状语；而instead of后常跟名词、代词、v-ing形式或介词短语等。如：
Why don’t you come and play volleyball instead? 你们为什么不来改打排球呢？
We can use the USA instead of America. 我们可以用the USA来代替America.
He went to school on foot instead of by bike yesterday. 昨天他步行去上学，没有骑自行车。
Jim likes swimming instead of skating. 吉姆喜欢游泳，而不是滑冰。
疑难解析
1. What’s the trouble？你怎么了？
这是口语中常用的句子，常用于询问对方身体哪里不舒服或发生了什么不幸的事。类似的句子还有：What’s the matter (with you)? 或What’s wrong (with you)?
trouble名词，意思是“烦恼，苦恼，忧虑，困难”。常见的搭配有：go to the trouble“不辞辛劳地做某事”；get into trouble“陷入困境，惹麻烦”；be in trouble“处于不幸／苦恼／困境之中”。例如：
My teacher went to the trouble of teaching us.我的老师不辞劳苦地教我们。
They got into trouble when they climbed that hill yesterday.昨天他们爬山时陷入了困境。
He is always ready to help others when they are in trouble.当他们处于困境时，他总是乐于帮助他们。
2. I had to sit down and rest every five minutes． 每五分钟我就得坐下来休息一会儿。
every形容词，意思是“每个”，同数词连用时，名词可以有复数形式。表示“每……，每隔……的”。例如：
He comes every three days. 他每隔两天来一次。（他每三天来一次。）
She goes to Beijing every other year. 她隔年去一趟北京。
3. Last night, as soon as I fell asleep I dreamt that I went to the garden.昨天夜里我一睡着就梦见我到花园里去了。
1）as soon as是连词，引导时间状语从句，表示“一……就……”。如：
It began to snow as soon as I got home. 我一到家里就开始下雪了。
He will call you as soon as he arrives. 他一到就会给你电话的。
2）fall asleep 意思是“入睡的，睡着的”，fall在此是连系动词，后常跟asleep或ill作表语。如：
He was too tired, so he fell asleep very soon. 他太累了，因此很快就睡着了。
类似的词还有before, after, until, when等。当主句是一般将来时态时，时间状语从句必须用一般现在时态。
3）…that I went to the garden. 这是由that引导的从句作宾语，叫做宾语从句。如：
He said that he could not sleep well. 他说他睡不好。
4. They taste delicious. 它们吃起来很香。
taste是系动词。常用的系动词有：be, look, seem, feel, smell, sound, get, become等，系动词后常用名词、形容词、副词和介词短语作表语。例如：
(1) The teacher seems angry. 老师似乎生气了。
(2) The food smells good. 食物闻起来很香。
(3) It’s getting colder. 天气变冷了。
have to 用法分析
have to是情态动词，意思是“必须；不得不”，表示客观要做的事情，后接动词原形。
上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] 下一页
Tag:八年级英语教案，八年级英语教案模板，教案大全 - 英语教案 - 八年级英语教案