八年级语法总结1.docVIP

八年级英语（下）语法知识总结 “系动词+形容词” 系表结构 1. 表示状态的系动词：be( is, am, are, was, were)，look(看起来), sound（听起来）, taste( 尝起来)，smell(闻起来)，fell(感觉，摸起来), seem(似乎)，keep(保持), Stay（保持）。 I am fine. 我很好。 You look excited. 你看起来很兴奋。 Who cooked the chicken? It _______ so nice.--- My mom. A. looks B. fees C. tastes D. sounds 注：seem 好像 似乎， 其用法为： Seem+ 形容词 如：You seem happy. Seem + to do sth. 如：They seem to know everything. Seem + that 宾语从句 如：It seems that they know everything. 2. 表示转变或结果的系动词：get, turn, go(变), become, grow. 如: The weather is getting warm. 天气正变暖。 The food goes bad. You can`t eat it. 这食物变坏了，你不能吃. 由because引导的原因状语从句 Because 意为因为，由于。 Because 引导的句子通常用来回答why引导的问句或用来引导原因状语从句。 如：Because it was wet, he took a taxi. Why are`t you going with us? --- Because I have a bad cold. 练习题：He didn`t go to school______ he had a headache. A. so B. because C. but D. that He cried because his dog died.( 对划线部分提问) _______ _______ he cry? 由as…as…, not as/ so…as…构成的同级比较 1.“A+动词+as+形容词/ 副词原级+ B “ 意为A和B一样… She is as active as her friends. 她和她的朋友一样活跃。 He jumps as high as Jim. 他和吉姆跳得一样高。 2. A+ 动词+not as/ so + 形容词/ 副词原级+ as+ B “A不如B….” = A+ 动词+形容词/ 副词比较级+than + B “ A比B…” Jack doesn`t run as fast as Jack.=Tom runs faster than Jack. 练习题：Maria is braver than Helen.( 同意句转换) Maria ______ ______ ______ ______ Helen. 使役动词make, let 的用法。 Make+ 宾语+ 形容词/ 名词/ 动词原形 The game made them excited. The students make him monitor. Sad movies always makes Jane cry. 练习题: He made us _______. A. laugh B. to laugh C. laughing Let sb.(not) do sth. My mother lets me play computer games. My mother doesn`t let me play computer games. 动词不定式 He decided to live in France. decide (not) to do sth. 不定式做宾语 Your task is to find out the cost by train. 不定式作表语 It is hard to answer your question. 不定式作主语 = To answer your question is hard. He ran so fast to catch the first bus. 不定式作目的状语 不定式短语 Invite sb to do sth tell sb(not) to do sth ask sb (not) to do sth Advise sb to do sth 建议某人做某事 the