人教版九年级英语三单元知识点(共5页).doc

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1、精选优质文档-倾情为你奉上（一）课文详解 1、get a dictionary.(P17)get此处为及物动词“获得、得到”，其后常跟名词作宾语。get之后跟双宾语，常用短语：get sb. sth = get sth for sb eg: He got a letter from his friend yesterday. Get me a cup of tea. = Get a cup of tea for me.get常构成的短语有： get up起床 get over克服、恢复 get on / off 上、下车 get along / on with与.相处 get back取回2、

2、buy a newspaper(P17)1)buy及物动词，常用结构有：buy sb sth = buy sth for sb buy sth from sb eg: He bought me this book = He bought this book for me. I bought this watch from a friend for $10.2)buy是非延续性动词，不能与how long及for引导的表示一段时间的状语连用。表示“某物买了多长时间”用have代替buy eg: I have had the bike for two months. How long have y

3、ou had your dictionary3)buy的反义词是sell，常用短语有：sell sth to sb = sell sb sth eg: I sold my car to my younger brother. = I sold my younger brother my car.3、Excuse me, could you please tell me how to get to the bookstore?(P17)1)Could you please.?表示委婉的请求，后接动词原形。类似的表示请求的句型还有：Would / Will you please do sth? W

4、ould you like to do sth?2)could为情态动词，也是can的过去式，在表达请求时，could与can没有时态上的差别，只是could的语气比较委婉和客气3)hot to get to the bookstore是“疑问词 + 动词不定式”结构。疑问词who, which, when, where, how, what等与动词不定式连用，常用语tell, show, know, teach, learn, explain等后作宾语，“疑问词 + 动词不定式”结构所表示的动作通常是未发生的，所以在转换成宾语从句时，通常要加情态动词或用将来时态。 eg: He didnt

5、know what to say. = He didnt know what he should say.4、Sure,just go along Main Street until you pass Center Street.(P17)1)go along “沿着.向前走”，与go down / up同义，常用于指路。常用的句子还有：walk along / down this road / street turn left / right at the + 序数词 + crossing / turningyou can take the No. + 数字 + bus and get of

6、f at.Its next to / across from walk on and turn left / right2)until 与 till的用法区别until可以放在句首，till不能。till多用于口语中。两个词都可以用作介词，也可以用作连词。作介词时，后接词或短语，在句子中作状语；作连词时引导时间状语从句。until / till用于肯定句中，句子或主句的谓语动词必须是延续性动词，表示这一动作或状态一直延续到until / till所表示的时间为止。这样的动词有live, wait, last, work等 eg: He watched TV until / till midni

7、ght last night. I waited for him until / till he came back.until / till用于否定句中，其句型为：not.until / till“直到.才.”或“在之前不”，通常与非延续性动词连用，强调句子或主句所表示的状态或动作从until / till所表示的时间才发生，句子或主句必须是否定句。表示非延续性的动词有come, go, leave, meet, realize, understand, reach, get, arrive等 eg: He didnt go home until / till ten oclock. I h

8、adnt realize the thing was so serious until / till she told me about it. = Until she told me about it, I hadnt realized the thing was so serious.5、go to the thinrd floor(P18)the first floor the second floor the third floor (美式英语)the ground floor the first floor the second floor(英式英语)6、turn left(P18)

9、1)turn left = turn to the left.此处turn是不及物动词，意为“转向”turn的其他用法作不及物动词，“转动，转身” eg: Ricky turned and walked away.作及物动词，“转动，旋转” eg: He turned the key in the lock.作连系动词，“变为，成为” eg: When spring comes, the trees turn green.作名词，“轮流” eg: Its your turn to read now.与turn有关的短语：turn right = turn to the right turn o

10、n / off turn down / up 2)left adv.“向左，在左边” n“左边” adj“左边的” v.“离开”（leave的过去式和过去分词） eg: The little boy is sitting on my left. I left my homework at home.7、go past the bookstore(P18)go past “经过”相当于pass，其中past为介词，“从旁边过去” eg: The train went past us without stopping at the station.past“从旁边经过”，表示时间上的“超过”或空间

11、上的“经过” eg:The man is walking past a shop.over“从上方跨越而过”，表示动作发生在物体的上方 eg: There is a bridge over the river.across“横穿、越过”，表示动作是在某一个物体的表示进行的，强调从一端到另一端 eg:The little boy is walking across the road.through“穿过，越过”，表示动作是在某一空间内进行的，强调从内部穿过 eg: He can go through the forest by himself.8、Nine thirty, so you dont

12、 need to rush!(P18)rush此处用作不及物动词，“仓促、急促”，也可用作及物动词。常用短语：rush to do sth eg: He sprang up and rushed to the door. Shes always rushing to finish first.rush用作名词时“匆忙、高峰”，常用短语：in a rush rush hour9、I suggest Water City Restaurant in Water World.(P19)suggest及物动词“建议、提议”名词形式：suggestion.其用法为：suggest sth“建议某事” e

13、g: He suggested a walk.suggest doing sth“建议做某事” eg: She suggested going there by bike.suggest + that引导的宾语从句，这时宾语从句要用虚拟语气，谓语动词用（should ）+ 动词原形 eg: He suggested that we should do it at once.10、On their way to Water City Restaurant, Alice and He Wei pass by Uncle Bobs.(P19)1)on ones way to.“在某人去的路上” eg

14、: Yesterday I met a friend of mine on my way to school.常见的与way相关的短语有：by the way顺便说一下 in a way在某种程度上 in the way挡路，妨碍in this way通过这种方法 lose ones way迷路2）Uncle Bobs = Uncle Bobs restanrant,当名词所有格限定的是表示住宅、诊所、商店等名词时，该名词通常可以省略。 eg: They are at the doctors(office). He is going to his aunts(house) this Sunda

15、y.11、Its always busy, so come a little earlier to get a table.(P19)a little earlier“早一点儿”,其中a little 在句中修饰比较级earlier.在形容词比较级前常用much, a little, a bit, even, still等来修饰，表示程度进一步加深。 eg: I have much more homework than him. He is even busier today.12、Sally needs to mail a letter.(P20)mail此处用作及物动词，“邮寄”，相当于动

16、词post，还可意为“发店子邮件”。 其后可以跟双宾语，构成短语： mail sb sth = mail sth to sb Eg: Please mail this letter to your father.mail用作不可数名词，“邮件、信件”，合成词有：e-mail电子邮件， airmail航空邮件 eg: Whe he got to the office, he found a lot of mail waiting for him.13、Ben is wondering if theres a bank in the shopping center.(P20)shopping ce

17、nter购物中心。动名词shopping在此处作定语，修饰后面的名词。动名词常置于名词前作定语，表示被修饰的名词的用途或者性能。 eg: a swimming pool = a pool for swimming a waiting room = a room for waiting14、fascinating(P21)fascinating adj“迷人的、有吸引力的”，通常用作表语和宾语，作表语时，主语通常是物。 eg: Your ideas are fascinating.fascinate vt. “使着迷、使感兴趣” eg: The toys in the shop window f

18、ascinated the children.fascination cn. & un “魅力、极大的吸引力” eg: Chinese art has a great fascination for me.fascinated adj“着迷的”，主语通常是人 eg: I used to be fascinated with dinosaurs.15、inexpensive(P21)inexpensive adj“不贵的”，同义词为cheap,反义词为expensive / dear,1)在一个单词的前面货后面加上一个词缀构成新词，这种构词法叫做派生法。加在单词前的词缀叫前缀，加在单词后的词缀叫

19、后缀。前缀一般不引起词性的转变，而只是引起意思上的变化。expertinexpert不熟练的；completeincomplete不完善的；possibleimpossible不可能的。2)英语中常见的前缀有：dislike, disagree, impossible, impolite, unable, unlike, unhappy, unhealthy注：陈述句中如果有带否定词缀的单词，整个句子仍视为肯定句，反义疑问句中的附加疑问部分用否定形式。 Eg: She is unhappy, isnt she?16、convenient(P21)convenient adj“方便的、便利的”，

20、常用句型：Its convenient for sb to do sth eg: Its convenient for us to do that.convenience n. “方便、便利、有用的设施”既可作可数名词、也可作不可数名词 eg: I keep my books near my dest for convenience. The house has all the modern conveniences.17、safe(P21)safe adj“安全的”常用作表语。be safe后面一般接动词不定式，常构成句型：Its (not) safe to do sth“做某事是（不）安全的”；safe from后接表示危险、危害等的名词，意为“不要受到.的伤害” eg: Its not safe to swim alone in the river. You will be safe from danger at home with your parents.专心-专注-专业