Unit 2 How often do you exercise Section A Period I (2d-3c)课时讲解+达标测评 课件

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Unit 1 How often do you exercise
Period II Section A (2d-3c)
课时讲解+测评
人教新目标版
课时目标
词汇 full, swing , maybe , least , at least
句型 1. -What do they do on weekends
-They often help with housework.
2. -What does she do on weekends
-She sometimes goes shopping .
3. -How often do you go to the movies
-I go to the movies maybe once a month .
重点难点 1. 掌握一些频度副词及其用法：always ,usually , often , sometimes ,hardly ever , never , every day , once a month , twice a week 。
2. 激发学生兴趣，使他们运用所学知识谈论业余活动。
3. 掌握本课时一些重点句子。
Presentation
新知探究
词汇详解
full
形容词，意为 “忙的；慢的；充满的”，还可以表示 “饱的”
构成词组：be full of 意为 “充满；装满”，相当于“be filled with” .
用法
举例
The bottle is full. 这个瓶子满了。
拓展
举例
(1) The box is full of books.这个箱子里装满了书。
(2) -Do you want another cake 你想再来一块蛋糕吗？
-No, thanks . I’m full. 不用了，谢谢，我饱了 。
Presentation
新知探究
词汇详解
swing
名词，意为 “摆动；秋千”；动词，意为 “（使）摆动，摇摆”，可用作及物
动词，也可用做不及物动词。
swing的过去式和过去分均是swung .
用法
举例
(1) Those children like playing with the swing .那些孩子们喜欢玩秋千。
(2) When they saw us , they swunt to us . 当他们看到我们的时候，向我们摆手
(3) He was swinging his bag back and forth . 他前后甩动着他的包 。
拓展
应用
根据所给汉语完成句子。
The _______(摇摆）of the ship made many people seasick .
swing
Presentation
新知探究
词汇详解
maybe
副词，意为 “大概；或许；可能“，可以放在句首，句中或句末，位置
比较随意。
注意与may be 的区别：may be 中的may 是情态动词，表示可能。
用法
举例
Maybe you are wrong =You are wrong , maybe. 或许你错了。
拓展
举例
You may be wrong . 你可能错了。
翻译句子
或许他知道答案。
_________________________________________________________
应用
Maybe he knows the answer . 或He may know the answer 或He knows the answer , maybe
Presentation
新知探究
词汇详解
least
least是形容词little的最高级形式，基本意思是 “最小的；最少的”，指某物在数
量或体积上处于最小的状态。less在句中主要用作定语，偶尔也可用做表语。
least 需与定冠词the连用，用作定语时，多修饰可数名词。
at least 意为 “至少；不少于；起码“，反义词组是at most “至多”。
用法
举例
That’s the least you could do . 你至少应该做到那样。
拓展
举例
We should brush our teeth at least twice a day .我们每天应该至少刷两次牙。
The provisions can last three days at most . 这点给养充其量只够维持三天。
根据所给单词完成句子
Who has the _________(little) money , Tim, John or Mary
应用
least
Presentation
新知探究
语句详解
I have to play tennis with my friends. 我不得不和我的朋友打网球。
have to 侧重于客观需要，含有 “不得不”之意，有多种时态变化，否定形式
don’t have to =needn’t, 意为 “不必要”
have to 与must 的区别：
must侧重于主观看法，认为有必要或有义务去做某事，其否定形式是musn’t,意为 “不允许；禁止”
用法
举例
I know the girl , so you didn’t have to tell me her name .我认识这个女孩，因此你没必要告诉我她的名字。
拓展
应用
We must help people in trouble .我们必须帮助处于困境中的人。
You mustn’t smoke here. 你不许在这里抽烟。
选择填空
-Would you like to go shopping with me
-I’d love to , but I’m afraid I can’t . I ______ wash my clothes.
A. can B. may C. must D. have to
举例
D
Presentation
新知探究
语句详解
They often help with houswework 他（她）们经常帮着做家务。
“help (sb) with sth” 意为 “帮（某人）做某事”
用法
举例
I often help my mother with dinner.
我经常帮我妈妈做饭。
拓展
“help sb (to)do sth”意为 ”帮助某人做某事”。可以跟不带to的动词不定式。 “help oneself to ....”意为 “随便吃.....”.
(1) Do you ever help the old man carry water
你曾经帮助过这个老人提水吗？
(2)Help yourself to some fish ,Gina . 吉娜，随便吃些鱼吧。
举例
应用
根据所给单词完成句子
Help ________(yourself) to some chicken , children .
yourselves
Presentation
探究发现
探究点 1
一般现在时态的 ”三变化”
1.She doesn’t like playing sports .
2. Are you happy today
3. Why are you alone at home on weekends
含有一般现在时态的肯定句变为否定句或疑问句时，应注意以下三种变化
观察
发现
一变--肯定句变否定句：
1.句中出现系动词（be)、情态动词（can , may , must , should)或助动词（would , have)等时，只需在其后加上否定词not 即可。
2. 句中出现（feel , seem , look 等感官系动词或实义动词时，需在该动词之前加上don’t 或doesn’t ,此时该动词需还原动词原型。
二变--肯定句变一般疑问句：
1. 句中出现系动词（be)、情态动词（can, may , must, should)或助动词(would , have)等时，只需将该词提前至句首并大写首字母即可。
2. 句中出现feel,seem ,look等感官系动词或实义动词时，需将do或does放句首，此时该动词需还原为动词原型。
Presentation
探究发现
探究点
一般过去时的“三变化”
三变-肯定句变特殊疑问句
此时，只需在 “二变”的基础上，在一般疑问句的句首加上相应的特殊疑问词
即可。
根据要求完成句子。
应用
1. I often read aloud in the morning . (变为否定句）
I ______ often _________ aloud in the morning .
2. He seems to be very nevours when he speaks in the meeting . (变为一般疑问句）
______ he _______ to be very nervous when he speaks in themeeting
3. Mary can swim in the river now . (变为否定句）
Mary _______ _______ in the river now .
4. I always help with houswork on weekends . (对画线部分提问）
________ ______ you always ________ on weekends
don’t read
Does seem
can’t swim
What do do
Presentation
探究发现
探究点 2
副词 maybe 与 may be 的区别
1. Maybe he stays at home now.
2. It may be rainy later on because there are many clouds in the sky now .
maybe为副词，意为 “或许；大概；可能”，通常放在系动词、助动词或情态动词之后，实义动词之前，有时也可放在句首； may be 为情态动词+动词原型，意为 “可能是”，在句中作谓语。
发现
用maybe 和 may be 填空
1. Liu Ying is ______________ out for a moment.
2. He _____________ a teacher , I guess.
maybe
may be
观察
应用
Presentation
达标测评
I. 根据句意级汉语提示，完成句子
1. Next week is quite ________(满的） for me.
2. _______ _______ (摇摆舞） is fun . We all like it.
3. ________(可能，也许） he is a teacher. I’m not sure.
4. He plays the guitar ________ _______ (至少）twice a month .
4. -How often do you read English
-________ _______ ________ (一个月两次）
II. 用所给动词的适当形式填空。
1. I have guitar classes ________(one) a week.
2. I have piano lessons ______(two) a week .
3. He hardly ever ________(watch) TV on Tuesdays.
4. My sister plays basketball at _______(little ) twice a week .
5. -Do you have a _______ (health ) breakfast
-Yes, I do .
full
Swing dance
Maybe
at leasat
Twice a month
once
twice
watches
least
healthy
Presentation
达标测评
根据句意及首字母提示完成句子。
1. What’s your favorite TV p_________
2. The girl goes to the beach o_________ a month .
3. He often works late at night , so he h_______ ever goes to bed early .
4. His arms s_______ as he walked .
5. Thank you for your h________ .
rogram
nce
ardly
wung
elp