人教版八年级上单元知识点归类总结.ppt

可数名词与不可数名词 一．初中常见的不可数名词有： wood ice ice cream wool metal glass hair dust air water milk wine beer bread sugar rice meat cheese weather sunshine experience traffic homework advice housework information peace trouble anger food fish grass tea drink coffee fruit snow education knowledge time music coke paper orange chicken hair exercise friendship pollution work room news salad popcorn corn salt pepper gravy honey soup porridge sunshine light money rain wind Chinese Japanese English beef pork oil juice 二．1．既修饰可数也修饰不可数名词：all, some, most, a lot of, lots of, 2．修饰可数名词的词有：数词（one...）, few, a few, many, 3. 修饰不可数名词的词有：little, a little, a bit of, much, 4. 不可数名词通常用“数词+量词+of+不可数名词”表示复数： three pieces of paper 祈使句 一． 定义：祈使句指的是表示命令、请求、建议或劝告的句子。其主语you常省略，谓语动词用原形，句末用感叹号或句号，读降调。 二．结构： 1. 肯定的祈使句：动词原形+其他 Stand up, please. Be careful! 2．否定的祈使句: 1). Dont + 动词原形 Don’t laugh at others. 2). Never do sth. Never do that again! 3). No + v-ing/n. No smoking! No noise, please. 4). Let’s not do sth. Let’s not waste time. 5). Don’t let sb. do sth. Don’t let them make any noise. 三．祈使句的考点：A: Don’t forget to turn off the light. B: OK. I won’t. A: Don’t play on the road. B: Sorry. I won’t. A: Remember to return it as soon as possible B: OK./All right./I will. If 用法知多少？ ◆if 意为“如果”，引导条件状语从句。既可放在主句之前，也可放在主句之后。在If 引导的条件状语从句中，如果主句是一般将来时或是祈使句或含有情态动词的句子，那么从句中要用一般现在时表将来。eg：Jane will pass the exam next month if she works hard at it . ◆ if表示“是否”引导宾语从句。直接引语如果为一般疑问句，变为间接引语时就用if引导，并把疑问句语序变为陈述句语序。如果主句中的时态为一般过去时，从句中的时态要求发生相应的变化与主句的时态保持一致。（表示客观规律，自然现象和真理的则不变。）eg：“Are they from France? “ He asked me . →He asked me if they were from France. 8. 常用the one代单数可数名词,the ones /those 代替复数名词,that 代替不可数名词.