人教版九年级Unit3 4精讲

发布 2022-08-09 01:17:28 阅读 7090

unit3&4复习精讲。

unit 3

一重点词汇。

pierce vt. 刺穿,刺破 get ears pierced get sth done/h**e sth done 让某人做某事。

instead of 代替后接名词或名词短语。

he will go instead of you. 他将代你去。

instead 代替后接句子,常放在句末,放在句首时后要用逗号隔开。

he is too busy , let me go instead. 他太忙了,让我去吧。

stay up 不去睡觉熬夜。

she stayed up reading until midnight. 她看书看到半夜才睡。stay up doing sth 熬夜做某事。

sleep late 睡过头睡的过久。

oversleep 睡过头睡的过久

concentrate vt. 集中;聚集,集结[o][(on/upon)]

we must concentrate our attention on efficiency. 我们必须把注意力集中在效率上。

our population is concentrated in the big cities. 我国人口集中在大城市里。

vi 全神贯注;全力以赴[(+on/upon)]

she couldn't concentrate on a book very long. 她不能长时间专心读一本书。

volunteer n 自愿参加者,志愿者[(+for…的志愿者)][to-v)]

the volunteers for community service are doing a good job. 社区服务的志愿者做得很出色。

vt. 自愿(做)[(to-v) volunteer to do sth 自愿去做某事。

they volunteered to repair the house for the old lady. 他们主动提出替老太太修缮房子。

experience n. 1经验,体验[u][(of/in)]

she had no experience of life at all. 她毫无生活经验。

h**e you had any experience of teaching english? 你有过教英语的经验吗?

h**e experience doing sth 有做某事的经验。

2. 经历,阅历[c]

please tell us about your experiences in africa. 请跟我们谈谈你在非洲的经历。

i had a rather odd experience the other day. 前些天我有过一次相当奇怪的经历。

vt.经历;体验(go through)

the city experienced over 2,000 such incidents last year. 去年这座城市发生过二千次以上这类事件。

experienced adj 有经验的 an experienced worker/teacher

mess [u] 混乱,凌乱的状态 messy adj 混乱的脏乱的。

her hair was in a terrible mess. 她的头发乱极了。

sleepy adj. 想睡的;瞌睡的;困乏的 (sleep asleep)

she suddenly started to feel very sleepy. 她突然感到非常困倦。

sleep n/v 睡觉。

asleep adj 睡着的。

reply vi.回答,答复[(+to同义词 answer vt.

they did not reply to our new proposal. 他们对我们的新建议没有作出答复。

he has not yet replied to my question. 他还没有回答我的问题。

n [c] 回答,答复 [(to)]

what did you say in reply to her request? 在答复她的请求时你是怎么说的。

achieve vt. 完成,实现 (realize)

you will never achieve anything if you spend your time that way. 你若总是这样消磨时间,就永远不会有所成就。

teach vt. 1. 教,讲授;训练过去式过去分词taught teacher n 教师。

she taught us how to pronounce those difficult words. 她教我们如何发这些难字的音。

i'll teach you to swim. 我教你游泳。 (teach sb to do sth)

mr. smith teaches us english. 史密斯先生教我们英文。(teach sb sth)

what are you teaching this semester? 你这学期教什么课?

importance n. [u] 重要,重大;重要性。

here i would stress the importance of mathematics to the whole of science. 这里我要强调数学对整个科学的重要性。

important adj. 重要的,重大的[(+to)]

it is important to see that everything goes well. 重要的是确保一切顺利。

it is important to learn to communicate. 学会沟通思想很重要。

it is +adj +for sb to do sth

succeed vi. 成功,办妥;获得成效[(+in)]

he succeeded in getting the job. 他谋得了那份工作。

our plan has succeeded. 我们的计划成功了。

succeed in doing sth 成功做某事。

success n. 1. 成功;成就;胜利[u][c]

they h**e achieved remarkable success in their work. 他们在工作方面成绩显著。

2. 成功的事;取得成就的人[c]

she was a success as an actress. 她是位成功的女演员。

successful adj. 成功的;结果圆满的;胜利的。

it was a successful experiment. 那是一次成功的试验。

successfully adv 成功地顺利地。

二知识点。1.语态:

①英语有两种语态:主动语态和被动语态

主动语态表示主语是动作的执行者。

被动语态表示主语是动作的承受者

cats eat fish. (主动语态)猫吃鱼。

fish is eaten by cats. (被动语态)鱼被猫吃。

②被动语态的构成。

由“be +及物动词的过去分词”构成。

助动词be 有人称、数和时态的变化,其变化规则与be 作为连系动词时完全一样。

被动语态的用法。

当我们不知道谁是动作的执行者,或者没有必要指出谁是动作的执行者,或者只需强调动作的承受者时,要用被动语态。

2. allow sb. to do sth. 允许某人做某事(主动语态)如:

mother allows me to watch tv every night. 妈妈允许我每晚看电视。

be allowed to do sth. 被允许做某事(被动语态)如:

lily is allowed to go to qinzhou. 莉莉被允许去钦州。

allow doing sth 允许做某事 allow = permit

3. stop doing sth. 停止做某事 please stop speaking.请停止说话。

stop to do sth. 停止下来去做某事 please stop to speak. 请停下来说话。

stop sb (from) doing sth 阻止某人做某事。

4. 倒装句:

由so+助动词(be/do/will/h**e)/情态动词+主语意为:…也是一样。

she is a student. so am i. 她是一个学生,我也是。

she went to school just now. so did i . 她刚才去学校了,我也是。

she has finished the work. so h**e i . 她已经完成了工作,我也完成了。

she will go to school. so will he. 她将去学校,他也是。

so + 主语 + 助动词(be/do/will/h**e)/情态动词主语确实。加强语气)

he is very confident,isn’t he? yes, so he is.

you h**e been to the usa twice, h**en’t you? yes, so i h**e.

neither/nor+助动词(be/do/will/h**e)/情态动词+主语意为:…也不是。

she is not a student. neither am i. 她不是一个学生,我也不是。

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