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八年级英语下册重要知识点笔记(冀教版3-4单元）
八下英语第3-4单元（一）
1.休假
【1】vacation假期（n.）既可数又不可数（同义词：holiday）
「1」go on（a）holiday/vacation去度假
「2」be on holiday/vacation在度假
「3」take/have a holiday/vacation休假
「4」summer holiday（s）/vacation暑假
「5」bank holiday公共假日
【2】break/rest休息（短暂的）take/have a break/rest短期休假
【3】take a day off休一天假
2.giraffe（可数n.）长颈鹿
3.in the 20th century=in the 1900s在二十世纪
4.take courage（n.）todo sth.鼓起勇气做某事
encourage（v.）sb.to do sth.鼓励某人去做某事
5.kill time消磨时间 e.g. We kill time playing cards.
6.the relationship between A and B...和...之间的关系
7.industy（n.）工业/企业/行业 heavy/light industry重/轻工业
steel/tourist industry钢铁/旅游业
8.enter（及物v.）=go into进入
the entrance/exit（n.）tosth.某地的入/出口
9.the key tosth....的关键/钥匙
the+名词+to的短语：the answer to the question这个问题的答案
the reply to...的回答
the solution to...的解决方案
the passport to...的护照
10.search（v./n.）搜索/搜寻/调查
【1】做及物v.+地点 e.g. Police searched the area for clues.
【2】做不及物v.+for+搜寻目标 e.g. Police searched for clues in the area.
【3】做n. insearch of=search for
八下英语第3-4单元（二）
11.depend on依赖于/取决于
It（all）depends/that depends那得看情况
e.g. Will he come to my party？-That depends.
11.Every coin has two sides.（谚语）任何事物都有两面性
12cause（v./n.）
【1】（v.）cause sth.引起某事 e.g. Eating wild animals caused COVID-19.
【2】（v.）cause sb. sth.为某人引起/造成...
【3】（v.）cause sb. to do sth.造成某人做某事
e.g. The people who ate wild animals caused us to stay at home and have online classes.
【4】（n.）起因/原因
the cause of...的原因 e.g. The cause of the COVID-19 is that some people eat wild animals.
13.mouse-mice（pl.）老鼠 mouse-mouses（pl.）鼠标 mouse potato电脑迷
14.bamboo竹子/竹材不可数，竹竿可数（bamboos） bamboo shoots竹笋
15.advantage（n.）优点/优势-disadvantage（反义词）缺点/不利因素
【1】take（full）advantage of（充分）利用
【2】have the advantage of有...优势
e.g. She has the advantage of good education.
16.lay（v.）-laid（过去式/过去分词）放置/产卵：lay/set the table摆放餐具
lie（v.）-lay（过去式）-lain（过去分词）躺：lie in bed卧床
lie（v./n.）-lied（过去式/过去分词）撒谎/谎言：tell a lie说谎
17.shake-shook-shaken摇动/发抖 shake hands握手 shake one’shead摇头
e.g. She was shaking with fear.
18.protect...from（doing）sth.保护...免于...
e.g. We wear sunglasses to protect our eyes from the sun/being hurt.
19.cut（v.）砍/切/割/剪（n.）伤口：a deep cut一个深的伤口
【1】cut down砍倒/减少
【2】cut in插嘴/打断谈话
【3】cut in on sb./sth.打断...e.g. She cut in on our conversation.
【4】cut in line=jump the queue/line插队
【5】cut off切断电源
【6】cut out删除
【7】cut up切碎
20.appear（v.）出现/显现-disappear（反义词）消失/失踪-appearance（n.）
八下英语第3-4单元（三）
21.sell
【1】sell sb. sth.=sell sth. to sb.（for...）把某物（以...钱）卖给某人
e.g. She sold me the mask for 5 yuan.
【2】主动表被动
e.g. The book sold well and was reprinted many times.
【3】sell out卖光（物做主语主动表被动或被动语态）
e.g. Shuanghuanglianoral liquid（were）sold out within hours.
【4】sell out of（人做主语主动语态，物做主语被动语态）
e.g. Sorry，wehave sold out of the alcohol.
22.brave（adj.）勇敢的-bravely（adv.）勇敢地
23.【1】simple（adj.）「1」简单的/简明的「2」朴素的
e.g. The oldcouple live a simple life.
【2】simply（adv.）「1」仅仅/只/「2」简单地/朴素地
（1）I read books simply for pleasure.
（2）The book explains grammar simply and clearly.
（3）The old couple live simply.
24.obey/follow rules遵守规则break rules违背规则
25.knock down击倒/拆除 knock down the wall把门撞倒
26.survey调查
【1】n.：do/carry out a survey做调查
【2】v.：survey sb./sth.调查某人/某事
27.divide
【1】divide into把...分成... divide sth. in half/into halves把...分成一半/几半
【2】divide up分配
28.familiar（adj.）熟悉的
【1】sb. be familiar with sth. e.g. People who live near a bakery is familiar with the smell.
【2】sth. be familiar to sb. e.g. The smell is familiar to the people wholive near a bakery.
29.take up占据/从事 e.g. She has taken up the violin.
30.be harmful todo=do harm to=be bad for对...有害

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