八年级英语上册 Unit 2 How often do you exercise(第3课时)Section A(Grammar Focus-3c)课件

1、第三课时第三课时Section A(Grammar Focus3c)单元同步语法精讲 表示频率程度的副词称为频度副词。eg：always，usually，often，sometimes，seldom和never等。这些词表示经常性的动作或状态，而不是某一具体动作，常用于一般现在时中。1频度的区别always总是；一直；始终100%usually通常；经常90%often常常；经常70%sometimes有时；不时40%hardly ever几乎从不；很少；难得5%never从不；决不0%2它们在句中的位置：频率副词在句中常位于be动词、助动词、情态动词之后，实义动词之前。sometimes有时

2、可位于句首或句末。3表示频率的短语有：once/twice a week，three times a day，every week/year等。4对频率副词或短语提问用how often。5频率副词或短语常与一般现在时态连用。eg：I never eat meat.我从不吃肉。Jim usually does his homework in the evening.吉姆通常晚上做作业。Sally doesnt often watch TV at the weekend.萨利周末不常看电视。How often do you eat fruit？你多久吃一次水果？单元同步语法强化训练一、单项选择。

3、1If my friends have any problems，my door is_open to them.(2014，安徽)AneverBseldomCsometimesDalways2Did you go to the cinema last night?Oh，no.I_go to the cinema.The tickets，you know，are too expensive.(2014，宁波)Aalways Bhardly Cusually Doften3My sister_goes to bed early because she needs a lot of sleep e

4、very day.(2014，南昌)Aalways Bsometimes Chardly DneverD B A 4Li Ke_runs in the morning，for he wants to be healthy.(2014，成都)AneverBoftenChardly5How often do you go skating?_.I cant skate at all.(2014，温州)AAlways BSometimesCSeldom DNever6Where shall we eat tonight？(2014，河南)Lets call Harry.He_knows the bes

5、t places to go.Aonly Bnearly Cnever Dalways7I_watch this TV program.Its very interesting.(2013，徐州)Aoften Bnever Chardly DseldomB D D A 8_do you go to the sports club?At least once a week.(2014，苏州)AHow long BHow oftenCHow much DHow far9Look at the flowers I gave you last month.They are dying！_do you

6、water them?Sorry，I forgot to water them.(2014，菏泽)AHow long BHow oftenCHow soon DHow muchB B 二、按要求改写句子。10The boy drinks milk once_a_day(对画线部分提问)_ _ _the boy_milk?11She sleeps seven_hours every day.(对画线部分提问)_ _ _does she sleep every day?12She usually watches TV in the evening.(变为一般疑问句)_she_ _TV in the evening?13Jean is having milk and bread for breakfast now.(用sometimes改写句子)Jean_ _milk and bread for breakfast.14Alice always does her homework at 7 pm.(变为否定句)Alice_ _ _her