8AUnit 2How often do you exercise复习课件

Unit 2 How often do you exercise?
【探究总结】 1.含义： 一般现在时表示经常性或习惯性的动作、现在的状态、 主语具备的性格和能力、客观存在及普遍真理。
2.行为动词一般现在时构成：
动词原形 动词第三人称单数形式 (1)肯定句：主语+_________/_____________________ Do Does +主语+动词原形？ (2)一般疑问句：___/_____ don’t doesn’t +动词原形 (3)否定句：主语+_____/_______
≥ 20%
usually
＜ 5%
often
0%
sometimes
hardly ever
never
提示：频率副词在句中的位置是：实义 动词之前, be动词或助动词之后。
3a
Look at the information in the chart and complete the report.
Activities Days a year
[中考链接] My cousin knows a lot about C geography, ______ he is only four years old. A. because B. so C. although
4. …the best way to relax is through exercise. through 介词，课文中意为“以，凭借” e.g. He found the job through an advertisement in the newspaper. 他通过报纸上的一个广告找到这份 工作。
——你住在这里多长时间了？
—For three years.——三年了。 次数 (3)how many times“多少次”，询问 _____，常对“once, twice, three times”等提问。
【活学活用】 ①—_______do you visit your grandparents? —Twice a week. A.How soon B.How much
【活学活用】
①(2012· 连云港中考) —Jack, is maths difficult to learn in high
school?
—Sure. All subjects can be learned well_______hard work.
A. without B. through C. by D. with
答案：across
Ⅰ.单项选择
1.(2012· 泰州中考)The moonlight is shining in_______the window. Everything in the room looks so nice. A. over B. across C. through D. past 2.—How do you learn English, Toby? —I often practice English_______chatting_______my American friends.
4.About 75 percent of the earth_______water.
A. is B. are C. am D. were
it’s too late与before共同组成从句，表示 “不要等到为时已晚；不要等到来不及 的时候；趁着还来得及 ”。 e.g. You should work harder before it’s too late to catch up. 你应当更加用功，别等到为时过晚而赶 不上了。（你现在用功还赶得上。）
A. in; to
C. by; with
B. by; of
D. with; with
3. _______Linda is only five years old,_______she can look after herself. A. Although; but B. Although; / C. Although; so D. But; /
hard ：努力地；猛烈地。
hardly It is raining hard ____, people can _____ go out to work.
hard he never fails the exams. He studies very _______,
【辨析】 maybe与may be maybe是副词，在句子做状语。may be 是情态动词may与动词原形be一起构成 句子的谓语动词意为“可能是”，它们 有时也可互换。 e.g. 或许它们在你的书包里。
Fill in the blanks with do or does.
1. 2. 3. 4. 5. 6.
How often _____ does he play soccer? _____ Do you drink milk? do they stay up late? How often ____ Does Sue eat a healthy breakfast? _____ How often ____ do you eat apples? _____ Do your parents play cards?
【注意】 percent做主语时，谓语动词的数要根据 其后面的名词来确定。 e.g. Fifty percent of the apples are bad. 50%的苹果都坏了。 Twenty percent of the meat is in the fridge. 20%的肉都在冰箱。
注意：although引导的从句不能与but连 用。 e.g. 尽管他离家很早，但是他还是迟到了。 Although he left home early, but he was late. (×) Although he left home early, he was late. (√ )
【用法辨析】 through，across与over的区别
across the street(=cross the go ______ street）
“横越，穿过”，指从表面走 过或从一边到另一边
“穿越”，指从空间内穿过
through the tunnel go _______
越过 ，指超过一段距离或 “_____” 度过一段时间 jump over the hurdle
1. We found that only fifteen percent of our students exercise every day. percent 名词，意为“百分之„„” e.g. Eighty percent of the students in our class exercise every day. 我们班里80%的学生每天都锻 炼。
_______ Maybe they are in your schoolbag. may ___ be in your schoolbag. They ____
5. Maybe your mother is in the kitchen.
(改为同义句)
may be Your mother ____ ___ in the kitchen.
答案：1.watch 2.am; is 3.Do; have 4.doesn’t do 5.does; go
Ⅱ.句型转换 1.Kate goes skateboarding twice a week.(改为否定句)
Kate_______ _______ skateboarding twice a week.
B.exercise; exercise
D. exercise; exercises
2.I hardly ever watch TV.我几乎不看电视。 【自主领悟】hardly意为“几乎不；几乎没有”，
之前 否定 用在实义动词 _____。本身还有 _____意义。例如：
Tom hardly speaks Chinese. 汤姆几乎不说汉语。
(1)how often“多久一次”，常对一些表示频度的副词或短语提 问。回答时，常用twice a month, every day, sometimes, often, usually， hardly ever， never等。 for since (2)how long“多长时间/多久”，对介词 ___ 或 _____引导的时间 状语进行提问。例如： —How long have you lived here?
C. How often
D.How long
②—_______do you need to go to school on foot every day?
—Half an hour.
A.How many C. How long B.How much D.How often
【巧学助记】
如何区分exercise是否可数
Exercise Read books Watch TV for over 2 hours Drink juice
Eat hamburgers Help with housework Stay up late
365 365 320 210
95 20 15
88% 58% 26% 5% 4%
【归纳拓展】 how often/how long/how many times小结
不可数名词
可数名词
③Some
students
in
our
class
hardly
take_______, so our headmaster asks us to do
morning_______every day.
A.exercises; exercises