精选优质文档-----倾情为你奉上Unit2 How often do you exercise?Section A知识讲解一. help with housework 帮助做家务 1. help with sth. 意为“帮助做某事” 2. help sb. with sth. = help sb. _______ sth. 帮助某人做某事 Eg: I often help him ______ his English. = I often help him __________ English. 我经常帮他学习英语 【拓展】1. help oneself to… 请随便吃/喝Please help yourself to some cakes. 2. can’t help doing sth 情不自禁做某事I can’t help falling in love with that girl. 我情不自禁爱上那个女孩二．housework 意为“家务劳动”不可数名词 1. They have housework to do. A. many B. much 三. sometimes 有时辨析：sometimes ，some times ，sometime ， some timesometimes 有时候。
at times= from time to time也是“有时”的意思some times 几次time作可数名词时可作“次数”解；表示“时间”时是不可数名词sometime 某个时候可指过去或将来的某个时候some time 一段时间常与for连用对它提问用how long 口诀记忆：分开“一段时间” ；相聚“某个时候” 练习：① We plan to stay in Hainan for . 我们打算在海南呆一段时间② I am sure that we have met before. 我肯定我们之前见过几次了③ I have letters from him. 有时我会收到他的来信四. hardly ever 几乎不 比较： hard、hardly和hardly ever①hard作形容词时，意为“困难的；硬的；勤奋的；严厉的；苛刻的”。
hard作副词时常用来表示程度，意为“努力地；猛烈地；剧烈地”， 位于动词之后This ground is too hard to dig. 这块地太硬，挖不动They tried hard to succeed. 他们努力工作，以求得成功②Hardly 副词，意为“几乎不”，表示否定意义，位于实义动词之前，系动词、助动词、或情态动词之后，不表示频率常用来修饰表示能力的词，如can, could等He can hardly play football. 他几乎不会打篮球There is hardly any coffee left. 几乎没有剩余的咖啡了③hardly ever是表频率的副词，意为“几乎不；几乎没有”，相当于almost not, seldom 练习： There is ______ ______food left. 几乎没有食物剩下 He ______ ______ . 他几乎不工作 He ______ ______. 他工作努力五．What’s your favorite...? =What... do you like best？你最喜欢的......是什么？ 1.What’s your favorite animal？你最喜欢的动物是什么？ = __________________________________________ 六. free 意为“空闲的，有空的”反义词busy。
be free 意为“闲着，有空” eg:：He is free now.他现在有空 拓展：free还可译为“免费的” Eg：The tickets are free. 票是免费的七． quite full 很忙，相当忙.1. adj. full 还可译为“满的，充满的” 反义词是empty，意为“空的” Eg：The bus was full when they got there. 翻译________________________________________. 拓展：A be full of B. = A be fill with B; A中充满了B The room is full of students. The bus is full of people.The hall is _______ people. A. fill with B. full with C. filled of D. filled with 2.full adj. “饱的” 其反义词是hungry，意为“饥饿的”。
Are you hungry or full？你饿了还是饱了？ Eg：I can’t eat any more，I am quite full. 我不能再吃了，我相当饱了八． maybe “也许，大概，可能”，常位于句首 Eg：Maybe he knows Tom. 也许他认识Tom辨析：maybe 和may be maybe “也许，大概，可能”一般放句首）Maybe you are right. 也许你是对的may be “可能是，也许是” 为“情态动词+be动词”结构位于句中）You may be right. 你也许是对的 Lily an English teacher. Lily可能是一名英语老师 =________________________________________ 九.at least 意为“至少”其反义词为at most “最多” Eg：There are at least 1,500 students in our school. _____________________________________。
十. how often意为“多久一次”，常用于对时间频率的提问回答可用once/twice/three times a day(一天一/两/三次)，sometimes(有时)，never(从不)，very often(经常)等How often do you watch TV? 你多久看一次电视？【拓展】词语词义用法答语特征how long多久询问时间多久for/about+一段时间how often多久一次询问动作的频率often, twice a week等how soon多快，过多久询问时间多快in+一段时间how far多远询问距离多远ten minutes’ walkhow many多少询问可数名词数量数词+可数名词复数how much多少询问不可数名词数量数词+表示量的词+不可数名词多少钱询问价格数词+钱十一. look、see、watch和read辨析：look为不及物动词，后接宾语时须用介词at，指看的动作see着重于看的后果，即“看到，看见”read多指“看书、报”，这里的“看”实为“读”watch表示“注视，观看，监视”之意也常用于“看电视，看比赛”等短语中。
一． want sb. to do sth. 的否定形式为want sb. _____to do sth. Eg：She wants me to bring him some pens. 否定：She wants me__________________ him some pens. 拓展：1.want sth. 想要某物 2.want to do sth. 想要做某事3. want (sb.)to do sth.=would like/love (sb.)to do sth.二． be good for 意为“对……有益”反义词为be bad for “对……有害” Eg: Vegetables are good for you. 蔬菜对你有好处拓展】1.be good to“对…好”，其反义短语为be bad to“对…不好” 2. be good at“在…方面擅长”， at后面常接名词、代词或动词-ing形式，同义短语为do well in She is good at English and Chinese. = She does well in English and Chinese. 她擅长英语和汉语。
I am good at __________________（play）basketball.3. be good with “和…相处得好；擅于和…相处” Are you good with children? 你和孩子们相处得好吗？ Eg:I asked my teacher about today’s homework. 三. Here are the results. 这是（调查）结果 here 位于句首，句子要倒装Here is + 单数名词 Here are + 复数名词. Eg：Here is your jacket. 这是你的夹克四. 1. 百分数由percent来表示，构成：基数词+percent ，常用“数词＋percent of＋名词” 这一结构作主语时，谓语的单复数要看percent of 后跟的名词，如果是可数名词复数，谓语应该用复数，如果是不可数名词，谓语应该用单数Thirty percent of the students ______ ( like) watching game shows.70 percent of water _______ ( be ) salty water(盐水)。
五．surprised 惊奇的，感到意外的1. be surprised at sb. / sth. / doing sth. 对…感到惊奇， We are surprised at the news. 2. be surprised to do sth. 对做某事感到惊讶 I’m very surprised to meet you here.3.。