七年级下册U5-U7各个话题知识要点

七年级下册U5-U7各个话题知识要点

Unit 5 Topic1

重点语法一般现在时（常与频度副词never, seldom, sometimes, often,usually, always等连用）重点句型—How do you usually come to school?

—I usually come to school by subway.

—How often do you go to the library?

—Once/Twice/Three times a week/Very often/Every day/Sedom

重点详解

1I always come to school by bus.

by+交通工具名称，表示使用某种交通方式，中间不加限定词，如果交通工具前有a, the, my 等限定词，就不能用by,而是用in或是on.

on the train=by train on his bike=by bike in my car=by car.

巧辩异同on foot 与walk on foot “走路”，是介词短语，不能作谓语，只作方式状语，位于句末。walk “走路”,是动词，可以作谓语。

go to…on foot= walk to I often go to school on foot. =I often walk to school.

同样，go to….by bike = ride a bike to go to…. by car = drive a car to

go to … by plane = fly to go to… by bus = take a bus to

2 Come on! It’s time for class. come on “快点，加油，来吧”。

It’s time for sth. “该做某事了”，与It’s time to do sth.意思一样。

3 look的短语look the same看起来一样look like看起来像……

look for寻找look after 照顾

4 do my homework at school 在学校做作业

do one’s homework 做家庭作业（注意：one’s 要随主语的变化而变化，常用形容词性物主代词my, your, their, our, his, her等）。

5 we want to

．．．．．．．．． the school life of American students. 我们想了解一下美国学生的学校生．．．．．． know about

活。

want to do sth. “想做某事”，want 后接动词不定式作宾语。

know about “了解，知道关于…”。

6 巧辩异同 a few与few a few “一些”，few“很少，几乎没有”，修饰可数名词。

a little与little a little“一些”，little“很少，几乎没有”，修饰不可数名词。

7 They often play basketball or coccer, go swimming

．．．．．．．．．． and so on

．．．．．．．.

go swimming 去游泳and so on “等等”，表示还有很多。

拓展go+v.-ing 表示去做某事，类似的有：go fishing 去钓鱼go shopping 去买东西go boating 去划船go skating 去滑冰

8 How often do you go to the library?你多久去一次图书馆？

how often“多久一次”，问频率。答语常用频度副词never, always,often等或单位时间内的次数once a week一周一次twice a month每月两次three times a year每年三次

语法讲解一般现在时

一般现在时表示：

（1）现在所处的状态。Jane is at school.

（2）经常或习惯性的动作。I often go to school by bus.

（3）主语具备的性格和能力。He likes playing football.

（4）客观真理。The earth goes round the sun.

常用的时间状语：often, always, usually, sometimes, every day等等。

行为动词的一般现在时，助动词是do/don’t和does/doesn’t.当主语是第一、二人称和所有复数形式时，行为动词用原形。

肯定式：I go to school on foot. 否定式：I don’t go to school on foot.

疑问式：Do you go to school on foot? —Yes, I do. —No, I don’t.

当主语是第三人称单数时，动词用第三人称单数形式，在词尾加-s或-es。

肯定式：He goes to work by bus. 否定式：He doesn’t go to work by bus.

疑问式：Does he go to work by bus? —Yes, he does. —No, he doesn’t.

Topic2

重点语法现在进行时态。

重点句型What are you doing? He is cleaning the dormitory.

Are you doing your homework? Yes, I am./No, I am not.

How long can I keep them? Two weeks.

重点详解

1 at the moment“此刻，现在”,相当于now.

2 巧辩异同go to sleep与go to bed

①go to bed“上床”“就寝”I often go to bed at ten.

②go to sleep“入睡”“睡着”Last night I went to sleep at two o’clock.

3 巧辩异同some, a few 与a little“一些，有些”三者都修饰名词。

some既可以修饰可数名词又可以修饰不可数名词。

We want some apples and some water.

a few用在可数名词复数之前，a little用在不可数名词之前。

There are a few books and a little waterin the classroom.

4 与how相关的短语how often多常how many多少how much多少钱how old多大

5 And you must return them on time.你必须按时归还它们。Return意为“归还，回归”

①return sth. to sb.把某物归还某人=give back sth. to sb.

②return to“回到…”，相当于come back to…

6 Maria and a girl are talking at the lost and found.

talk“交谈”，常用的短语talk to/with sb.“与某人交谈”

巧辩异同t a l k,s a y,s p e a k与t e l l

(1) talk“交谈”，表示通过谈话方式交换意见、消息等。

(2) speak“说话”，强调开口发声，后常接某种语言。

(3) say “说”，强调所说的话的内容。

(4) tell“告诉”，有时兼含“嘱咐”“命令”等。tell a truth说真话，tell a lie说谎, tell a story 讲

故事等固定搭配。

7I can’t find

．．．．．．．．．． it. look for“寻找”，强调寻找的过程；find“找到”

．．．． my purse and I am looking for