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1、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 b
2、us. 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 toon foot= walk to I often go to school on foot. =I often walk to school. 同样，go to.by
3、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 to2 Come on! Its time for class. come on “快点，加油，来吧”。Its time for sth. “该做某事了”，与 Its 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
4、在学校做作业do ones homework 做家庭作业（注意：ones 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 know about the school life of American students. 我们想了解一下美国学生的学校生活。 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littlea lit
5、tle“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neve
6、r, always,often等或单位时间的次数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。
7、 行为动词的一般现在时，助动词是do/dont和does/doesnt.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 dont go to school on foot. 疑问式：Do you go to school on foot? Yes, I do. No, I dont. 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 doesnt go to work by bus. 疑问式：Does he go to work
8、 by bus? Yes, he does. No, he doesnt.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 go to bed“上床”“就寝”I often go to bed at te
9、n. go to sleep“入睡”“睡着”Last night I went to sleep at two oclock.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
10、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” return sth. to sb.把某物归还某人=give back sth. to sb. return to“回到”，相当于come back to6 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talk, say, speak与tell (1) talk“交谈”，表示通过谈话方式交换意见、消息等。 (2)
11、 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。7 I cant find my purse and I am looking for it. look for“寻找”，强调寻找的过程； find“找到”强调找的结果。8 look(at), see与 readlook(at)指看的动作，see指看的结果，read常指看书、看报纸等。9 Here are some photos of his
12、.这有他的一些照片。 photos of his是双重所有格。his是名词性物主代词，后还可以接名词所有格。a friend of mine我的一个朋友 a classmate of my brothers我弟弟的一个同学10 I also want to go there one day.我也希望有一天到那儿。 also意为“也”，常用于be动词和情态动词后面，实义动词的前面。 巧辩异同 also与tooalso放在句中，too用于句末。语法讲解 现在进行时1.现在进行时表示：现在正在进行或发生的动作。2.常用的时间状语：now, at the moment, look, listen等。3
13、.谓语动词构成：be(am/is/are)+v.-ing形式。4.动词的-ing形式构成：规 则原 形-ing形式一般在动词原形末尾加-ingdogodoinggoing以不发音的字母e结尾的动词，先去掉e，再 加-ingmakedancemakingdancing以重读闭音节结尾的动词，如末尾只有一个辅音字母，应双写出这个字母，再加-ingswimrunswimmingrunning5.现在进行时态的肯定、否定和疑问式。（1）肯定式：I am running. You are running. He/She is running.（2）否定式：Im not running. You aren
14、t running. He/She isnt running.（3）一般疑问句及回答：Are you running? Yes, I am./No, I am not.Is he/she running? Yes, he/she is./ No. he/she isnt.Topic3 重点语法一般现在时和现在进行时的使用和异同。重点句型 What day is ti today? Its Wednesday. Why do you like it? its easy and interesting. What class are they having? They are having a music class.重点详解1 询问星期几用What day？回答：Its Wednesday/Sunday。与特殊疑问句词what有关的短语：what class什么班 what color什么颜色what time几点 what date几号（日期）2 How many lessons does he ha
