初二英语(新目标)unit-1How-often-do-you-exercise知识点总结(共2页).doc
精选优质文档-倾情为你奉上Unit1 How often do you exercise?一、本单元短语总结1.hardly ever 几乎从不,很少2.how often 多久一次3.twice a week 一周两次 4.the result of的结果5.as for 至于,关于 6.want sb to do sth想要某人做某事7. be good for对有益 8.kind of 有点儿,有几分9. try to do sth尽力去做某事 10.look after 照看,照顾11. the same as同一样 12.on weekends 在周末13.go to the movies 去看电影 14.play soccer 踢足球15.help sb (to) do sth 帮助某人做某事 a lot of 许多,大量17.keep in good health 保持身体健康二、重点知识详解1.how often 多久一次 用来询问动作的频率,其答语通常是always, usually, often, sometimes, hardly ever, never等,也可以是表示“多久几次”之意的短语,如every day, once a month, twice a week, three times a week等等。另外,how long 多长,提问一段时间或者物体的长度;how soon 多久以后,提问“in+一段时间”;how far 多远 用来提问路程;how many 多少,用来提问可数名词数量;how much 多少 用来提问不可数名词的数量或价格等。-How often do you go shopping?-Once a week.2. Here are the results of the activity survey of Green High School.本句为倒装句,其真正主语为后面的results。当句子以here, there, out, in, up, down等副词开头并起强调作用时,可采用倒装结构,将副词置于句首,主谓语交换位置就好。其中主语须为名词,谓语的单复数形式由名词的数来决定。Here comes a bus. Here are some apples.当主语为代词时,不需要倒装,即谓语动词仍放在主语之后。Here you are.Here it is.3.most 的用法:(1)most作形容词直接用于名词前作定语,意为“大多数的,大部分的”。Most students like watching TV.(2)most作代词常与of连用构成“most of the+名词”或“most of +代词宾格”,意为“大部分,大多数”。其中of后可接可数名词复数形式,也可接不可数名词,作主语时谓语动词要和of后的名词保持一致。Most of the apples are red.Most of us dont like him, because he is too lazy.4.be good for对有好处,对有益 be bad for对有害处 be good at 擅长,善于做do well in be good to 对友好(和善,慈爱)be friendly to =be kind to 5.be/keep in good/poor/bad health身体好/不好6.have a habit of有一个的习惯7.try to do sth 尽力去做某事,努力做某事 try doing sth 尝试,试着做某事 try ones best to do sth 尽某人最大努力去做某事 try on 试穿 have a try 试一试,试试(try为名词)8.look after =take care of 照看,照顾look afterwell=take good care of照顾的好9.help sb do (to) do sthhelp sb with sth 帮助某人做某事10.be the same as+n/pron/v-ing 和一样,与相同 be different from 与不同 11.kind of =a bit=a little有点儿,有几分.多用于修饰形容词和副词,表程度。12.although=though ,是连词,引导让步状语从句,意为“虽然,尽管”。在英语里如果用了although 或者though,就不能用but , 但可以用yet 或still.。although 和though 意思相同,用法也基本一样。但是在让步状语从句中,though的位置比较灵活,although则一般用于句首。另外,在短语even though(即使)和as though(仿佛,似乎)中不能换用 although。Although he was ill, he (still) worked hard.三、语法归纳一般现在时1.构成:主语+动词+(宾语)(1)一般现在时中,be动词有三种形式,am, is, are。be动词:第一人称单数之后用am, 第二人称及复数人称后用are,第三人称单数后用is。(2)一般现在时中,谓语动词为实义动词时,一般用动词原形,当主语为第三人称单数时,谓语动词要用第三人称单数形式。(3)一般现在时中,谓语动词若是情态动词,则没有人称和数的变化。2.动词第三人称单数形式的变化规则:(1)一般情况下,在动词后直接加s,如likes, runs, works, learns, drinks, 等等。(2)以字母s, x, ch, sh, o结尾的动词,后加es.如watches, fixes, teaches等等。(3)以“辅音字母+y”结尾的动词把“y”变成“i”再加es. 如studies, tries。若以“元音字母+y”结尾的动词则直接加s.如plays, stays。3.一般现在时的意义和用法:(1)表示经常性,习惯性或反复发生的动作。常与always, usually, often, sometimes, hardly ever, never, in the morning, twice a month等表示频率的时间状语连用。We often go to school by bus.(2)表示目前存在的状态或客观事实。My mother is a teacher.The earth travels around the sun.(3)表示某人的爱好,习惯,性格,能力等。I like reading.专心-专注-专业