新目标英语八年级上第1单元知识讲解及练习含答案
Unit 1 How often do you exercise?
【重要词汇概览】
◆ ever adv. 曾经 ◆ once adv. 一次 ◆ twice adv. 两次
◆ internet n. 互联网
◆ program n. 节目单， （电脑）程序 ◆ hilltop n. 山顶 ◆ result n. 结果， 成果
◆ key n. 提醒，提示， 线索， 答案 ◆ translate v. 翻译 ◆ song n. 歌曲
◆ junk n. 垃圾， 破烂物，废弃的旧物 ◆ milk n. 牛奶 ◆ interviewer n. 采访者 ◆ habit n. 习惯，习性 ◆ difference n. 不同，差异，区别 ◆ grade n. 分数，成绩，年级 ◆ although conj. 虽然，即使，纵然 ◆ unhealthy adj. 不健康的， 不益健康的 ◆ skateboarding n. 溜滑板运动
【重要词组概览】
◆ how often 多久一次 ◆ as for 至于， 关于 ◆ junk food 垃圾食品 ◆ eating habit 饮食习惯 ◆ of course 当然 ◆ look after 照顾， 照看 ◆ start with 以……开始
◆ make a difference 使得结果不同，有重要性 ◆ go shopping 去购物 ◆ have a party 聚会 ◆ go to the movie 去看电影 ◆ once a week 每周一次 ◆ hardly ever 很少 ◆ twice a week 每周两次 ◆ three times a week 每周三次 ◆ watch TV 看电视
用心 爱心 专心
◆ on weekend 在周末 ◆ do homework 做作业 ◆ a lot of 许多
◆ try to do 试图（努力）做某事 ◆ help sb (to) do sth. 帮助某人做某事 ◆ the same as 和……相同 ◆ keep in good health 保持身体健康
【语法知识聚焦】
一般现在时 The Simple Present Tense 一般现在时表示现在的状态 He is twelve. 他十二岁。 They are at home. 他们在家。 表示经常性或习惯性的动作 I go to school at seven every day. He plays soccer on Sundays. 表示主语具备的性格和能力等 She likes apples. They speak Japanese. She is medium build. 肯定式 I am a cleaner. You are right. He / She / It is here.
We / You / They are outgoing 否定式 I am not a… You are not… He / She / It is not… We / You / They are not… 否定式和疑问式
We go to school at seven every day. We don’t go to school at seven. Do you go to school at seven? Yes, we do.（No, we don’t.）
否定式和疑问式
He goes to school at seven every day. He doesn’t go to school at seven. Does he go to school at seven?
Yes, he does.(No, he doesn’t.)
一般现在时常和表示时间频度的副词连用。 如：
用心 爱心 专心
often, usually, sometimes, always, never, hardly ever等。 1. I often read books in the evening 2. Do they usually go to school by bike? 3. He doesn’t like milk. He never drinks it. 4. Sometimes my mother gets back at five. 一般现在时常和以下时间表达法连用。 如：
in the morning, in the afternoon, in the evening, at noon, at night,every day,on Sunday(s), at seven 等。
Do they have math in the morning? She sleeps nine hours every night.
It takes me two hours to do my homework every day. They don’t have classes on Sundays. 动词第三人称单数的构成： 1、直接加--s
look—looks read—reads play—plays stop—stops 2. 在字母s, x,ch,sh,o后加--es miss—misses fix—fixes watch—watches wash—washes go—goes do--does
3. 辅音字母加y结尾的动词去y为i，再加--es carry – carries study – studies hurry – hurries cry – cries 4.特殊的 have -- has
【语法练习】
用心 爱心 专心