1、Unit 2 语法课堂1.一般现在时的基本用法【重点释疑】一般现在时是表示通常性、规律性、习惯性、真理性的状态或者动作,或者动作有时间规律发生的事情的一种时间时态。在一般现在时中,当主语是第三人称单数时,谓语动词要用第三人称单数形式,其句型结构为：主语+动词+其他.一般现在时的标志有often,usually,always,sometimes等频度副词,也有 on Saturdays,every morning(afternoon,evening),every day等表示时间的短语。表示现在经常性或习惯性的动作。如：I leave home for school at 7 every mor
2、ning.我每天早晨七点离开家去上学。描述客观真理、科学事实、格言以及不受时间限制的客观存在。如：The earth moves around the sun.地球绕着太阳转。Summer follows spring.春去夏来。Knowledge is power.知识就是力量。表示现在的能力、特征、职业等。如：He sings well.他唱歌唱得好。【易错示例】My sister often _ (go)to school at seven in the morning.goes2.频度副词的用法【重点释疑】频度副词主要用来表示一定时间内事情发生的次数。常见的频度副词按照频率的高低,可以
3、排列为：alwaysusuallyoftensometimeshardlynever它们的区别和用法如下：always意为“总是”,与进行时态连用时,可以表示赞扬,也可以表示讨厌。如：He is always smoking.他总是抽烟。usually可以指通常的动作,但是侧重已经形成的习惯。如：He usually goes to school by bike.他通常骑自行车去上学。often是指经常性的动作,意为“常常,经常”。如：He is often late for school.他经常上学迟到。sometimes意为“有时,间或”,表示次数较少（低于often所表达的次数）。如：S
4、ometimes I help my parents with the housework.有时候我帮助父母做家务。hardly意为“几乎不,几乎没有”。表示次数极少。如：She hardly ever calls me.她几乎从未给我来过电话。never意为“绝不,从不”,表示一次也没有。如：He never lives there.他从不在那儿住。【易错示例】My mother doesnt like fish,but _ she eats a little.A.neverB.sometimesC.hardlyB一、用所给单词的适当形式填空。1.Mike often _(fly)a kit
5、e with his friends in the park.flies 2.Daniel and Tommy always _(go)to school on time.go 3.My cat _(not)_(eat)fish every morning.doesnteat 4.Su Yang _(watch)TV every Sunday evening.watches 5.Su Hai,_(do)your homework now.do 6.Nancy never _(finish)her homework after nine oclock.finishes 7.Ben and Hel
6、en always _(have)breakfast on time.have 8.What about _(go)_(fish)with me?goingfishing/to fish二、按要求改写句子。1.Tom put books on the shelf yesterday.(改为否定句)Tom _ _ books on the shelf yesterday.didntput 2.Mingming read books last night.(对画线部分提问)_ _ Mingming _ last night?Whatdiddo 3.He does his homework late
7、 every day.(改为一般疑问句)_ he _ his homework late every day?Doesdo 4.Nancy doesnt become sleepy.(改为肯定句)Nancy _ _.becomessleepy三、完形填空。Keeping good habits is very important for everyone.Some students often go to school 1 breakfast.Its a bad habit.As we know,by breakfast time you dont eat 2 for about twelve
8、 hours.Your body needs food.You need to 3 a good breakfast.It can give you energy for the whole(整个)morning.You can have rice,bread,an egg and a glass of milk.And you need to get up early to have breakfast.So going to bed 4 and getting up early is also a good habit.Drinking enough 5 is good,especially(尤其)in dry weather.()1.A.fromB.aboutC.withoutC()2.A.somethingB.anythingC.everythingB()3.A.haveB.hasC.hadA()4.A.colaB.earlyC.hardlyB()5.A.colaB.coffeeC.waterC
