新概念英语青少版2A：Unit 5 All about ants! 课件（77张PPT）

课件77张PPT。UNIT 5All about ants!
关于蚂蚁！antwebpage look upsurviveweekbreathestretchlegyawnarminsectNew words and expressions: ants
insect
webpage
website
look up
joke
蚂蚁
昆虫
网页
网站
查阅
开玩笑New words and expressions: breathe
stretch
survive
use
also
funnily enough 呼吸
伸展肢体
幸存，生存下来
用，使用
也，并且
十分有趣地ant insectwebpagelook up placesurviveweekbreathestretchlegjokeyawnFunnily enougharmeveningalsoinsectusewebsiteListen and answer questions:What do ants always
do in the morning?Read and answer the questions.
1.Where do ants usually live?
2.How long can they survive under water?
3.Do ants breathe under water?
4.When do ants always stretch their legs?
5. What do they also do in the morning, too?
Robert: Look at this______, Mum. It’s about____.
Karen: Ants? Why are you ______ants?webpageantslooking upGrammar Points 1 Look at this webpage.
Practice
Look at _____. (I)
Look at _____. (she)
Look at _____. (he)
Look at _____. (they)
Look at _____. (we)看Grammar Point 2 It’s about ants.
Translation （翻译）
What’s this about?
This song is about friendship(友谊).
--What time is it now?
--About 3:30.关于Grammar Point 3 Why are you looking up ants?
Why not? Ants are really interesting. “为什么不呢”， 我们可以用“why not” 来回答“why”引导的特殊疑问句Robert: Why not?
Ants are really______. They do really ________ things.
Karen: What kind of thing?interestinginterestingRobert: Well, they_____ live in ___places. But they can_____ under water for___ weeks.
Karen: Really?usuallydrysurvive twoGrammar Point 4 They usually live in dry places.
They don’t usually live in wet places.Grammar Point 5They can survive under water for
two weeks.
Practice：
她每天看两小时电视。
他每天睡觉八小时。
我爸爸每天早上跑步两小时。表示某一动作持续一段时间。Karen: Do they _____under water?
Robert: It doesn’t say.breatheRobert: Oh, Mum, how about this? Ants always _____their legs in the_____.
Karen: You’re joking!
Robert: No,_____!stretchmorningreallyKaren: Do they usually ____in the morning, too?
Robert: Well,__________, they do!yawnfunnily enoughGrammar Point 6 Karen: Do they usually yawn in the morning, too?
Robert: Well, funnily enough, they do!表示they yawn; do 在这里指代前面出现过的动词，避免重复出现。一般现在时一般现在时（The Simple Present Tense）
一般现在时表示经常发生的、习惯性的动作或存在的状态。其时间状语为often、 usually、 always、 sometimes等频率副词，on Saturdays、 in the morning(afternoon/ evening)? 、every day（ week/year ） 等.(1）表示事物或人物的特征、状态。
e.g.:天空是蓝色的
The?sky?is?blue.
? 玛丽的爸爸是一名英语老师
Mary’s?father?is?an?English?teacher.
? (2）表示经常性或习惯性的动作。
? e.g.:我每天六点起床。
I?get?up?at?six?every?day.
她每天都做运动
She?plays?sports?every?day.?
（3）表示客观现实。?
e.g.:桌子有四条腿
The?table?has?four?legs.?
我们班有50个学生。
There?are?50?students?in?my?class.?

（4）表示客观真理，科学原理，自然现象，等客观事实或格言、谚语等。
? 太阳每天从东方升起。
The?sun?rises?in?the?east?every?day.
地球绕着太阳转。
The?earth?goes?around?the?sun.

（5）表示平日的喜好。?
I?like?bananas.?
We?don’t?like?vegetables.?
He?likes?ice?cream.?
She?doesn’t?like?strawberries.?
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，即常在动词原形后加-s或-es。 但有些同学们对于哪些主语是第三人称单数还不十分清楚。现归纳总结如下：
一、人称代词he, she, it是第三人称单数。
如： He likes watching TV. 他喜欢看电视。
She has lunch at twelve. 她十二点吃午餐。
二、单个人名、地名或称呼作主语；是第三人称单数。
如：Han Mei likes salsd . 韩梅喜欢萨拉。
Beijing is in China. 北京在中国。
Uncle Wang often plays volleyball..
王叔叔经常打排球。
三、单数可数名词或“this / that / the+单数可数名词”作 主语时，是第三人称单数。
如：This book is yours. 这本书是你的。
That car is red.
The cat is Lucy’s. 这只猫是露茜的。

四、不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时，是第三人称单数。如：Everyone is here. 大家到齐了。
This is a pen. 这是一支钢笔。

五、不可数名词作主语时为第三人称单数。
如：The milk（牛奶） is in the glass. 牛奶在玻璃杯里。 The bread is very small. 那面包很小。
六、当数字或字母作主语时，看作第三人称单数。
如：“6” is a lucky number. “6”是个吉利数字。
"I" is a letter. "I"是个字母。二．只有主语在第三人称单数时用动词的“三单形式”，其他人称用动词原形。
动词三单形式的变化规则：
（1）多数直接在动词词尾加-s?
play?—?plays?? like?—?likes? ask---asks?
work---works? get---gets? call---calls?
（2）以字母s,?x,?ch,?sh或o结尾的动词，在词尾直接加-es.?
? watch---watches?wish---wishes?do---does go---goes??
（3）以“辅音字母加-?y”结尾的动词，要先变y为i再加-es
try---tries study---studies?cry---cries?fly---flies?
不规则变化：
be---?is have----has? 三、一般现在时的句子转换：
（1）变一般疑问句：当句子中有be动词或情态动词时，则把be动 词或情态动词(can,could等)提到主语的前面，（口诀：一调二变三问号）
（2）变否定句：在be动词或情态动词后面直接加not变成否定句?(be）后not莫忘记)?
例：①陈述句：She?is?my?sister.
否定句→?She?is?not?my?sister.
疑问句→?Is?she?your?sister??

? ②陈述句：I?can?play?soccer.?
? 否定句→?I?can?not?/can’t?play?soccer
疑问句→?Can?you?play?soccer??
Yes,Ican./?No,?I?can’t.? ?注意：
对一般疑问句的回答：一般用什么问就用什么来回答。但以下例外：
Is?this?a?pencil??Yes?,?it?is./?No,?it?isn’t.?
Is?that?your?backpack??Yes?,?it?is./?No,?it?isn’t.?
Are?these?your?parents??Yes,?they’re./?No,?they?aren’t.?
（3）当句子中没有be动词，也没有情态动词时，变一般疑问句时，在主语前加助动词do?(I,?we,?you,以及复数),?does（第三人称单数she,he,it等）变成问句；
（4）变否定句时，在主语后谓语动词前加助动词don’t,doesn’t变成否定句，切记：助动词后的动词则还原成动词原形。
例：陈述句：We get up（起床） at 7:00 every morning. 疑问句→Do you get up at 7:00 every morning?
否定句→We don’t get up at 7:00 every morning.
陈述句：She has a brother.
疑问句→ Does she have a brother?
否定句→ She doesn’t have a brother.
1.主语+（am/is/are）+其它
He is an office worker.
2.主语（除第三人称单数）+动词原形+其它
I get up at six everyday.
3.主语（第三人称单数）+动词s/es+其它
My father usually goes to work by bus.构成：(肯定句) 1.主语+（am/is /are）not+其它
He isn't an office worker.
2.主语（除第三人称单数）+don't+动词原形+其它
I don't get up at six everyday.
3.主语（第三人称单数）+doesn't+动词原型+其它
My father doesn't usually go to work by bus.构成：（否定句） 1.（Am/Is/Are）+主语+其它
Is he an office worker?(Yes, he is. /No, he isn't.)
2. Do+主语（除第三人称单数）+动词原形+其它
Do you get up at six everyday?
(Yes, I do./No, I don't.)
3. Does+主语（第三人称单数）+动词原形+其它
Does your father usually go to work by bus?
(Yes, he does./ No, he doesn't.)构成：（一般疑问句）一.1．This?is?my?pencil???(变一般疑问句)?
2.?These?red?socks?are?Kate’s?.?(变一般疑问句)
3.?Mary?does?not?have?any?books?.?(变肯定句)?
4.?She?likes?the?black?bag?very?much?.(变为否定句)?
5.?I?like?apples.?(用she改写句子)
6.?It’s?an?English?dictionary?.(对画线部分提问)?
7.?He?has?hamburger?and?apples?for?dinner?.?(变一般疑问句
?
三．用所给动词的适当形式填空。
1.?Lin?Tao??(like)?his?ruler?.
2.?Let’s??(have)?ice?cream?.?
3.?Let’s?(play)?tennis?!4.?He? (like)?English.?
5.?Nice?(meet)?you?!
6.?I?(need)?some?fruits.?

三、按照要求改写句子
1.?Daniel?watches?TV?every?evening.(改为否定句)
___________________________________________________?
2.?I?do?my?homework?every?day.(改为一般疑问句，作否定回答)
___________________________________________________?
3.?She?likes?milk.(改为一般疑问句，作肯定回答)?
___________________________?
4.?Amy?likes?playing?computer?games.(改为一般疑问句，作否定回答)?
___________________________________________________?
5.?We?go?to?school?every?morning.(改为否定句)?
__________________________________________________?
6.?John?comes?from?Canada（加拿大）(对划线部分提问)?
___________________________________________________?
7.?She?is?a?good?student.(改为一般疑问句，作否定回答___________________________________________________
?填空1）What your brother do?
2）He a student.
3）Amy noodles very much.
4） they read English everyday?
5）They in the classroom.
(aren't does likes is Do)Guided Conversationa)将下列反义疑问句补充完整，并回答问题。 The webpage is about ants, ______?
Ants aren’t boring, _______?
They’re really interesting, _______?
They usually live in dry places, ________?
They can survive under water for two weeks, ________?
Ants don’t stretch their arms in the morning, _______?
They stretch their legs, ________?
Ants usually yawn in the morning, too, ________?isn’t itare they aren’t theydon’t theycan’t theydo theydon’t theydon’t they2.Ask questions about the text
1).
ants/do/interesting things?
→Ants do interesting things.
→Do ants do interesting things?
What kinds of things......?
→What kind of things do ants do?2).
ants/usually live/dry places?
→Ants usually live in dry places.
→Do ants usually live in dry places?
Where......?
→Where do ants usually live?
3).
ants/survive under water/two weeks?
→Ants can survive under water for two weeks.
→Can ants survive under water for two weeks?
Which insects......?
→Which insects can survive under water for two weeks?4).
ants/stretch their legs and yawn/morning?
→Ants always stretch their legs and yawn in the morning.
→Do ants always stretch their legs and yawn in the morning?
Which insects......?
→Which insects always stretch their legs and yawn in the morning?Pattern PracticeWhat time is it?It’s 12 o’clock.What time is it?It’s ten past one.What time is it?It’s a quarter past two.What time is it?It’s half past five.What time is it?It’s twenty to eight.What time is it?It’s a quarter to nine.five o`clockten past tentwenty-five past tenhalf past twoa quarter to twelvetwenty to elevenpasttoo`clockhalf pastLet’s read the dialogue and do exercises. go to schoolarrives homelisten to the newsgoes to workgoes shoppingprepares a mealcome homewatch TV