1、牛津英语 8A Unit 4 Food 学案(2)识记句型1I get tired when I dance.当我跳舞时,我感到很累。这是一句带有时间状语多句的主从复合句。时间状语从句的引导词为 when,意为“当的时候”。如:We like listening to music when we have a dinner.我们喜欢吃饭时听音乐。2Its important for a dancer to be healthy. 对于一个舞蹈演员来说,健康是很重要的。此句中含有动词不定式的复合结构:It is +for to do sth. 对来说做某事其中 forto do sth。是动词不
2、定式的复合结构,在句中是真正的主语,it 为形容主语。如:its helpful for us to read English every day.对我们来说,每天朗读英语是有帮助的。3How often do you exercise?你多长时间进行一次体育锻炼?How often 询问做某事的频率,回答可以是具体的间隔时间,也可以是表示频率的副词。如:How often do you eat fruit and vegetables?I eat fruit and vegetables every day.How often do you walk to school?I never wa
3、lk to school.How long 询问做某事持续的时间,答语中的时间常用介词 for 引出。如:How long do you watch TV every night?I watch TV for 2-4 hours every night.4. it takes half an hour to cook.做饭要花半小时。It takes(sb.)some time to do sth.这是一个固定结构,表示做某事要花费(某人)多少时间。如:It takes my grandfather one hour to read newspapers every day.我爷爷每天花一个小
4、时看报纸。It took us two hours to have the big meal last night.昨晚我们花了两个小时吃了一顿丰盛的晚餐。精讲语法1 副词英语里表示频度“由少到多”“由低到高”的副词依次有:never, seldom, sometimes, often, usually, always.它们在句中通常放在连系动词、情态动词、助动词之后,行为动词之前。如:I always eat an apple for breakfast 我早饭总要吃一个苹果。Millie is never late for class. 米莉上课从不迟到。Simon often helps
5、 his mother in the garden.西蒙经常帮助妈妈在花园里干活。2 词的复数名词复数的变化规则:(1) 一般情况直接加 s。(S 在清辅音后读S,在浊辅音和元音后读Z )如:books, pens , boys.(2)以 s, z, x, ch, sh 结尾的名词加 es.(es 读Iz)如:buses , boxes(3)以“辅音+y”结尾的名词改 Y 为 I,再加 es.(es 读z)如:babies(4) 以 f , fe 结尾的名词改 f, fe 结尾的名词改 f , fe 为 ves.(ves 读vz)如:knives (5)以 o 结尾的名词一般情况加 es,少数
6、加 s.(es 读z;s 读z )如:tomatoes, potatoes, pianos, kilos.3. 不定冠词 a/an(1)概述:a/an 常用于可数名词单数前,起泛指作用。(2)用法:A表示数量“一个”.如:I have a brother and two sisters.B. 表示“每一个”。如:we go home twice a week. C. 表示“某一个”。如:a girl often comes to see them.D. 表示一类人、物。如:This is a chair and thats a desk.E用在习惯用语中。如: a lot of , have
7、a talk, Have a rest, have a good time. (3)说明:a 用在辅音之前,如:a book, a useful book;An 用在元音之前,如:an “s” , an hour.典型例题例: Do you swim?Twice a week.A. How long B. How much C. How often D. How many 解析:疑问副词 how 可以和不同的形容词或副词搭配,构成固定的疑问词组: how long“多长;多久”,通常对一段时间提问; how much“多少”,通常对修饰不可数名词前的定语提问,也可以询问“价格”“时间”等;ho
8、w many“多少”,是对可数名词前的数词进行提问;how often“多久”,通常是对周期性的时间状语提问。浏览题干及选项,应答部分显然是个周期性的时间状语。答案 C。例 2(1)One morning he found a bag . There was “s” on the corner of bag. (2)There is egg on the table. egg is for you .A. a; a(A)B. a; the(The )C. an; an(An)D. an; the (The)解析:在上下文中如果同一个人或物反复出现几次,第一次提到时用不定冠词;以后重复出现则表示
9、特指,用定冠词。不定冠词 an 用在元音音素开头的名词或词组之前。答案:D;D考题前沿题 1(2004。湖南长沙市卷)Can I help you, sir?Yes, i, d like five and some peas. i. potato B. tomatoes C. meat D. banana解析:此题考查名词的复数形式。名词的复数形式一般在词尾加 s 或 es,如:bananabananas, tomatotomatoes, potatopotatoes. 不可数名词没有复数形式。如:meat. 答案:B。题 2(2004 江苏南京市卷)Can I hep you, madam?
10、i, m looking for pair of shoes for my daughter. A. the B. an C. a D. some解析:此题考查定冠词和不定冠词的用法。定冠词表特指,不定冠词表泛指。an 用于以原音发音的单词前,因此本题选 C。答案:C。题 3(21 世纪报(初中版)2004 年中考模拟试题)I was listening to wonderful piece of music when there was knock on the door.A. a; an B. /; a C. a; a D. the ;the 解析:此题考查不定冠词的用法。表示数量“一个”,用不定冠词,且 knock 以辅音开头,所以其前面加 a; music 是不可数名词,但其前面有修饰词 piece,表示“一只曲子”,所以也用不定冠词,开头的形容词 wonderful 首个音素为辅音。故用 a. 答案:C。 学.优中考 ,网