Unit7 sectionB 知识点讲解 人教版英语八年级上册.docx

1、八年级上册unit7Section B1. They help with the housework and do jobs like working in dirty or dangerous places.它们帮助做家务,并且在肮脏或危险的地方工作。 help with sth.意为“帮助做某事”,help sb. with sth.意为“帮助其人做某事”,介词with后面接名词或代词。【例句】He often helps me with my English. =He often helps me (to)study English. 他经常帮助我学英语。【拓展】help还可作名词,意为

2、“帮助”，是不可数名词,没有复数形式。【例句】The old man needs some help.这位老人需要一些帮助。【拓展】help的其他常用搭配with the help . 的帮助下with ones help在某人的帮助下ask sb. for help 请某人帮忙cant help doing.忍不住做help oneself to.随便吃/喝help sb. out帮助某人摆脱(困境)2.Today there are already robots working in factories现在已经有机器人在工厂里干活了。 There be sb./sth. + doing s

3、th.有某人/某物正在做某事 “There be sb./sth +doing sth.”是一个常用句型，句子的主语与后面的动作存在主动关系。【例句】There are some children playing soccer on the playground. 有一些孩子正在操场上踢足球。【例句】There is a woman selling fruits in the street.有一位妇女正在街上卖水果。 already已经;早已already 作时词，多用于完成时，一般位于实义动词之前、系动词或助动词之后。含有already的肯定句变成否定句或疑向句时要把already变成yet

4、。【例句】The jeans he wore last year are already too short for him.去年他穿的牛仔裤对他来说已经太短了。【例句】He neednt lend me his camera.I already borrowed one. 他不必借给我他的相机了,我已经借了一个。 【例句】I havent finished my homework yet.我还没有完成我的家庭作业。3. .and they do simple jobs over and over again. 并且它们反复地干着简单的工作。 over and over again意为“多次;

5、反复地”,相当于again and again,通常在句中作状语。【例句】He called over and over again but nobody answered.他反复地打电话但没有人接。4. Fewer people will do such jobs in the future because they are boring, but robots will never get bored.在未来，更少的人会做这样的工作,因为它们(这些工作)很乏味,但是机器人永远不会感到厌烦。 in the future在将来，未来 in the future是介词短语，常用于一般将来时中。i

6、n the near future意为“不久”。【例句】People will have robots at home in the future.在将来，人们家里将会有机器人。【例句】The exchange rate is likely to fall in the near future.汇率不久可能要下跌。【拓展】in the future意为“在将来，未来”,特指将来的某一时刻，不一定从现在开始in future意为“今后，从今以后” ，强调从现在开始，相当于from now on【例句】 Who can predict what will happen in the future?

7、谁能预测将来会发生什么事情?【例句】 In future I must do more reading.今后我必须多读书。5. For example, scientist James White thinks that never be able to wake up and know where they are. 例如詹姆斯，怀特认为机器人将永远不能醒来后知道自己在哪儿。 wake up是“动词+副词”结构的短语，当名词作宾语时，名词可放在wake up中间,也可放在up的后面; 当代词作宾语时，代词必须放在wake up中间。wake.up意为“把叫醒”【例句】Peter was so

8、 tired that he didnt wake up until half past eight yesterday.昨天彼得太累了以至于直到八点半他才醒来。【例句】On Sundays my mom usually wakes me up a little later than usual. 代词作宾语时放在wake up中间在星期天,我妈妈通常会比平常晚点儿叫醒我。6. However, they agree it may take hundreds of years.然而，他们一致认为这可能花费数百年的时间。 hundreds of“许多;大量”,后接可数名词的复数形式。【例句】Ou

9、r school is so famous that hundreds of people come and visit it every term.我们学校如此有名以至于每学期(都有)许多人来参观它。【拓展】hundred与具体数字连用时,其后不能加-s，且表示确定的数目。【例句】The old man gave away eight hundred books to a primary school.这位老人给一所小学捐赠了800本书。【拓展】与hundred用法相同的词有thousand(千)million(百万，billion(十亿)等。7. If buildings fall dow

10、n with people inside. 如果建筑物倒塌，人被埋在里面 fall down意为“突然倒下;跌倒;倒塌”。【例句】Babies often fall down when they learn to walk.婴儿在学走路时经常跌倒。【例句】The house looked as if it was about to fall down.这栋房子看起来就要倒塌似的。【拓展】fall behind落后;落在后面 fall back后退;撤退;退却fall构成的短语fall out掉落;脱落 fall off. 从上摔下8. As a reporter, I think I will

11、 meet lots of interesting people. 作为一名记者，我认为我将遇见许多有趣的人 as作为as用作介词，在此处意为“作为”，后接表示身份或职业的名词，构成的介词短语通常作状语有时也可作定语、宾语补足语等。【例句】As a student, I must study hard.作为一名学生，我必须努力学习。【例句】She has got a job as a dentist.她得到一份当牙科医生的工作。【例句】During the week, Ill wear smart clothes.在工作日期间，我将穿讲究的衣服。 during在期间during作介词,通常表示

12、在特定的某一段时间内，强调“自始至终”,时间段前常有定冠词the或物主代词。【例句】Jack swims every day during the summer.在夏天杰克每天都游泳。【例句】I went to see my uncle during my stay in Beijing.我在北京逗留期间去看望了我叔叔。【拓展】during强调动作或状态的持续性， 可用在表示一段时间的名词前中间应有定冠词the或相应的物主代词in常用于表示季节或月份的名词前，名词前不用定冠词for强调动作贯穿这段时间，常与完成时或过去时连用【例句】Dont speak during the meal.吃饭时不要说话。【例句】Children enjoy flying kites in spring.孩子们喜欢在春天放风筝。【例句】We have studied English for years.我们已经学习英语好几年了。