(共38张PPT)
Unit 13
We're trying to save the earth!
Section A (Grammar focus-4c)
教-学-评一致性语法课示范课
人教新目标版 九年级(下册)
1. 通过观看视频和图片，能够正确地回答问题完成句子，能够找出不同事态的句子，能够感悟本节课要复习和总结的语法，能够沉浸式创设情景来复习本节课要复习的语法。
2. 通过翻译Grammar focus里的句子，能够正确地完成句子，能够通过问题引领完成句子来说出现在进行时、现在完成时、情态动词、被动语态、used to的表意功能和用法。
Learning Objectives
3. 通过完成4a\4b\4c，能够正确地用所给单词的适当形式填空，能够用所给的单词的正确时态和语态填空，能在实际情景对话中认识解决空气污染和垃圾污染的方法。
Watch and say
Activity 1
Lead to objective 1 test it
评价标准：观看视频回答问题，正确回答第1个问题得1分，正确回答第2个问题得3分，答案不唯一，说出3个原因即可，共4分。加上下1页，本活动共10分。 我得（ ）分。
Enjoy a short video and answer the questions.
1. What’s happening to the earth
2. What caused the problem？
3. What should we do to reduce the problem？
It is suffering from pollution.
遭受(痛苦)
The river used to be clean.
However, it is badly polluted.
The factories pollute the air with a lot of black smoke.
Factories are putting waste into the river.
People are throwing rubbish everywhere.
评价标准：观看图片回答问题，正确填出2个空格得2分，根据下面的4幅图片说出减少污染的方法得4分，共6分。加上上1页，本活动共10分。 我得（ ）分。
Watch and say
Activity 1
Lead to objective 1 test it
3. What should we do to reduce the pollution？
Some laws _________(被制定) to stop the pollution.
are made
Everyone ________________ (应该参与)saving the earth.
should take part in
Take the bus or ride a bike instead of driving.
Bring a bag instead of plastic bags when shopping.
Remember to throw rubbish into the bins.
Try to put different kinds of waste into different bins.
评价标准：观看视频关注视频里各种时态的句子，能够正确识别出每个时态的句子2个得2分，共8分。加上下2页，本活动共16分。 我得（ ）分。
Watch and say
Activity 2
Lead to objective 1 test it
Let’s watch another video and pay attention to the tense of different sentences.
Can you Identify(识别)the sentences in the simple past tense一般过去时
Can you Identify the sentences in the present progressive tense
现在进行时
Can you Identify the sentences in the present perfect tense现在完成时
Can you Identify the sentences with modal verbs含有情态动词的句子
评价标准：根据视频图片和汉语完成句子，正确填出1个句子得1分，共4分。加上上1页和下1页，本活动共16分。 我得（ ）分。
Watch and say
Activity 2
Lead to objective 1 test it
Can you Identify(识别) the sentences in the simple past tense
It ______(be) a lovely fresh spring in the meadow.
那是一个草地里美丽的早春。
You _______me easily.你很容易就找到我了。
was
found
What are you ________ at 你在看什么？
They __________ through spring flowers.
他们在春花中起舞。
looking
are dancing
Can you Identify the sentences in the present progressive tense
评价标准：根据视频图片和汉语完成句子，正确填出1个句子得1分，共4分。加上上2页，本活动共16分。 我得（ ）分。
Can you Identify(识别) the sentences in present perfect tense
Little Green Worm __________.
小绿虫长大了。
I ___________ one quite like this before.我以前从未见过这样的。
has grown
You _______ the best finder.
你一定是最好的发现者。
haven’t seen
must be
Little Green Worm ______________ really hungry.
小绿虫一定非常非常饿。
must have been
Watch and say
Activity 2
Lead to objective 1 test it
Can you Identify the sentences with modal verbs含有情态动词的句子
Read and fill
Activity 3
Lead to objective 2 test it
评价标准：先读翻译GF里的句子然后根据汉语完成句子，正确填出1个空格得1分，共10分。本活动共10分。 我得（ ）分。
Read the sentences and translate them.
Grammar Focus
Fill in the blanks according to grammar focus.
1. We’re trying ______ ______ the earth.
我们正在尽力地拯救地球。
2. The river ______ _____ be so clean.河流过去常常是如此干净。
3. The air ____ badly ________.空气被严重地污染了。
4. No scientific studies ______ ____ that shark fins are good for health.
没有科学研究显示鲨鱼鱼鳍对健康有益处。
5. We _____ ______ save the sharks.
我们应该帮助拯救鲨鱼。
to save
used to
is polluted
have shown
should help
Look and say
Activity 4
Lead to objective 2 test it
评价标准：观察GF里的第1个句子回答是什么时态，正确回答得2分，共2分。加上下3页，本活动共20分。 我得（ ）分。
What tense can you identify(识别)
现在进行时
Observation and discussion 观察与讨论
1.Be quite, please. The baby is sleeping.
2.Look! Kenny is swimming happily in the pool.
3. Now people are taking action animals.Let's join them.
4.Listen to carefully please. I am talking about something very important.
(一) 现在进行时的结构是什么？
(二) 什么时候用现在进行时(用法)？
(三) 现在进行时的标志性词语有哪些？
(四) 现在分词的构成规则有哪些？
Look and say
Activity 4
Lead to objective 2 test it
评价标准：正确回答结构得2分，正确说出第1个用法得2分，完成最后的填空得2分，共6分。加上上1页下2页，本活动共20分。 我得（ ）分。
现在进行时的结构和用法(Present progressive)
(一) 现在进行时的结构是什么？
谓语构成：be(am\is\are) ＋v-ing (动词的现在分词)
He is watching a movie now.
I am studying Chinese these days.
(二) 什么时候用现在进行时(用法)？
1.表示说话时(瞬间)正在进行的动作,目前正在发生的动作。常带有表示目前时刻的时间状语如：now, at the (very) moment, for the time being, at present, 及Look! Listen! ...
They are playing basketball now.
正在发生
① Look! The big bird ________(fly) away.
看，那只大鸟正在飞走。
② He __________ a movie now.
他现在正在看电影。
is flying
is watching
Look and say
Activity 4
Lead to objective 2 test it
评价标准：正确回答现在进行时的第2.3两个用法各得2分，共4分。加上上2页下1页，本活动共20分。 我得（ ）分。
现在进行时的结构和用法(Present progressive)
(二) 什么时候用现在进行时(用法)？
2.表示目前一段时间内正在进行，但说话时可能没有进行的动作。
Right now I am studying Chinese by distance learning.
我现在正通过远程教育学习汉语。
Tom is working on a new book .
目前一段时间内正在进行
3. 与always, forever, all the time等副词连用，表示动作反复或习惯。此时句子常含有说话者的强烈情感在内。表达较强的“责备”或“表扬”之意。
① You are always changing your mind. 你总是主意不定(太烦人了。)
② He is always helping others. 他总是帮助别人。(他真是个好人。)
It’s always raining here.
说话者的强烈情感（抱怨情绪
Why are you always coming late for class
含说话者的强烈情感
Look and say
Activity 4
Lead to objective 2 test it
评价标准：说出现在进行时的第4个用法得2分，说出现在进行时的标志词1个得0.5分，最多得3分；说出分词的构成得3分，共8分。加上上3页，本活动共20 分。 我得（ ）分。
现在进行时的结构和用法(Present progressive)
(二) 什么时候用现在进行时(用法)？
4. 对于come, go, leave, arrive, start 等表示位置移动的动词常可用进行时态表将来。① He is leaving on Wednesday. 他将于周三离开。
② Mary isn’t here at the moment. She is coming later. 玛丽现在不在这儿，她一会儿来。
(三) 现在进行时的标志性词语有哪些？
标志性词汇：now, right now, look, listen, these days, at the moment, at present
(四) 现在分词的构成规则有哪些？
一般情况下，在动词词尾后加-ing。如：go → going
以不发音的e结尾的动词，去掉e加 -ing。如: have → having
以重读闭音节结尾的动词，末尾只有一个辅音字母，双写这个辅音字母，再加 -ing。 如：stop → stopping
Look and say
Activity 5
Lead to objective 2 test it
评价标准：观察GF里的句子和所给例句说出used to的用法，正确填出1个空格得1分，共2分。加上下2页，本活动共16分。 我得（ ）分。
Do you know the usage of the phrase”used to”
Observation and discussion 观察与讨论
1. James used to wake up late, but now he gets up very early.
2. Did Cherry use to live in Shanghai when she was a child
(一) used to 表示什么意思？后接什么？
(二) used to 句型的否定句和一般疑问句的形式是什么？
(三) used to 和 be used to 的区别？
used to的结构和用法
(一) used to 是固定结构，是一般过去时的一种形式，后面跟___________. used to do 意为“__________”. 表示过去的习惯动作或状态，现在已不发生或不存在。 可使用于各种人称。
动词原形
过去常常…
Look and say
Activity 5
Lead to objective 2 test it
评价标准：根据上下文和汉语完成语法总结填空，正确填出1个空格得1分，共6分。加上上1页和下1页，本活动共16分。 我得（ ）分。
used to的结构和用法
(一) used to 表示什么意思？后接什么？
sb.used to do sth. 某人过去常常做某事(现在不再做了)
I used to ______ at six o’clock. 我以前六点钟起床。
used to be + adj. 过去曾经……样
The river used to ___ (be) very clean.
used to be + 职业名词 过去曾经当过/是…
His father __________ a teacher.
get up
be
used to be
(二) used to 句型的否定句和一般疑问句的形式是什么？
1) 否定句式：didn’t use to do sth. e.g.
You ____________ eat chips when you were younger.你年轻的时候不吃薯片。
2) 一般疑问句式：Did + 主语 + use to do sth.
Did you ______ play the piano 你过去常常弹钢琴吗？
3) 附加疑问句式： …, didn’t +主语 He used to drink, _________
didn’t use to
use to
didn’t he
Look and say
Activity 5
Lead to objective 2 test it
评价标准：根据上下文和汉语完成语法句子填空，正确填出1个空格得1分，共8分。加上上2页，本活动共16分。 我得（ ）分。
used to的结构和用法
(三) used to 和 be used to 的区别？
used to do sth. 意为“_______________(而现在不做了)”。后接_________。
I used to eat pork.
过去常常做某事
动词原形
be/get used to (doing) sth. 意为“_______________”。后接名词、代词或者
____________。I’m used to riding to school now.
习惯于(做)某事
动词-ing形式
I’m used to _______(walk) to school now.我现在习惯步行去学校。
walking
The city is hot and wet and I have ____________ it.
这座城市又热又潮湿，而我已经习惯了这里。
been used to
be used to do sth. 还意为“______________”。这是被动结构，后接__________。
Wood can be used to make paper.
被用来做某事
动词原形
Look and say
Activity 6
Lead to objective 2 test it
评价标准：阅读GF里的句子，正确回答问题得2分，共2分。加上下2页，本活动共15分。 我得（ ）分。
What tense is the sentence
被动语态
Observation and discussion 观察与讨论
1. Photos and experiences are shared on the microblog.
2.The video was sent our quickly and was seen by many schoolmates.
3. In the future, robots will be used by more and more people.
(一) 主动语态和被动语态有什么区别？
(二) 被动语态的构成是什么？
(三) 主动语态变成被动语态的步骤是什么？
(四) 一般现在时，一般过去时，一般将来时和情态动词的被动语态结构分别是什么？
(五) 被动语态的用法是什么？
Look and say
Activity 6
Lead to objective 2 test it
评价标准：根据上下文和所给单词完成句子填空，填出1个空格得1分；正确说出主动语态变被动语态的步骤得3分，共8分。加上上1页下1页，本活动共15分。 我得（ ）分。
被动语态的结构和用法
(一) 主动语态和被动语态有什么区别？
主动语态表示主语是动作的_______。被动语态表示主语是动作的_______，
即行为动作的对象。
执行者
承受者
Many people speak English.主动语态
English is spoken by many people.被动语态
(二) 被动语态的构成是什么？
结构：be + 过去分词
A new school ________(build) last year. Our classroom ________(clean) every day.
was built
is cleaned
(三) 主动语态变成被动语态的步骤是什么？
①
②
③
小口诀： 宾变主，主变by+宾，谓语动词用被动（be+done）,其他成分不变。
I cleaned my room.变成被动语态
→ My room __________ by me.
was cleaned
Look and say
Activity 6
Lead to objective 2 test it
评价标准：根据上下文和所给单词完成句子填空，填出1个空格得1分，共5分。加上上2页，本活动共15分。 我得（ ）分。
被动语态的结构和用法
(四) 一般现在时，一般过去时，一般将来时和情态动词的被动语态结构分别是什么？
(三) 主动语态变成被动语态的步骤是什么？
主动语态中有些感官动词（如hear, see, watch, notice等）和使役动词（如make, let等）后用不带to的不定式作宾语补足语，变为被动语态时，要把不定式符号to还原。
I saw him cross the road and enter the shop.变成被动语态
→ He ______________ the road and enter the shop.
was seen to cross
不同时态的被动语态结构(以动词do为例):
一般现在时: am/is/are+ done
一般过去时: was/were+done
一般将来时: will be/is(/am/are) going to be+ done
含情态动词: can/may/must...+be+done
The Entrance Exam ______(hold) in June every year.
is held
A strange noise ________ (hear) by him last night.
was heard
A wide road __________ (build).
will be built
Actions should________(take) to protect the earth.
be taken
(五) 被动语态的用法是什么？
a. 讲话者不知道动作的执行者，不必或不便说出动作的执行者(这时可省掉by引导的短语);
b. 借助被动的动作突出动作的承受者。
Tea plants are grown in South China.
A new school was built last year.
Look and say
Activity 7
Lead to objective 2 test it
评价标准：观察所给的例句说出现在完成时的用法，正确说出1个用法得2分，共4分。加上下2页，本活动共21分。 我得（ ）分。
Do you know the usage of the present perfect tense
Observation and discussion 观察与讨论
1. He has kept this book for over 2 months. Please ask him to return it soon.
2. We have lived here since my little sister was born. I like the people here.
3. Have you ever been to Australia It is a beautiful country.
4. He has already tried this to solve the problem, but it didn't work.
(一) 现在完成时态的用法有哪些？
(二) 现在完成时的结构是什么？
(三) 现在完成时的标志词有哪些？
(四) 过去分词有哪些构成规则？
(五) 辨析：have been to, have gone to ＆have been in
现在完成时的结构和用法
(一) 现在完成时态的用法有哪些？
1.定义：表示现在还存在过去发生或已经完成的
动作的影响或结果(3.4); 或者表示从过去某一时
间开始一直延续到现在并还可能持续下去的动作(1.2)。
Look and say
Activity 7
Lead to objective 2 test it
评价标准：正确说出结构得2分，完成标志词的句子填空得5分，说出过去分词的规则变化4种形式得4分，共11分。加上上1页下1页，本活动共21分。 我得（ ）分。
现在完成时的结构和用法
(二) 现在完成时的结构是什么？
has/have + 过去分词
(三) 现在完成时的标志词有哪些？
标志词: already, yet, ever, never, just, before, once, twice, recently, up to now, till now, so far,
for+时间, since+时间点/从句, in the last/past...years。
I haven’t finished my homework ___.我还没有完成家庭作业。
I have ________ finished reading the book. 我已经读完这本书了。
He hasn’t called ______ he went to Beijing.他自从去了北京还没有打来过电话。
He has kept this book _____ two weeks. 他借这本书两周了。
__________________(过去几年), great changes has taken place in Lianyungang.
In the past few years
yet
already
since
for
(四) 过去分词有哪些构成规则？
b. 在以e结尾的动词后只加-d。如: close → closed。
c. 以辅音字母加y结尾的动词，应将y改为i再加-ed。如: study → studied。
d. 以重读闭音节结尾的动词，要双写末尾的辅音字母再加-ed。如: stop → stopped。
a.一般情况下，在动词后加-ed。如: work → worked。
Look and say
Activity 7
Lead to objective 2 test it
评价标准：辨析3个短语的用法，正确填出1个空格得1分，共6分。加上上2页，本活动共21分。 我得（ ）分。
过去分词的不规则变化
(四) 过去分词有哪些构成规则？
AAA型 put put put AAB型 beat beat beaten
ABA型 become became become
ABB型 get got got/gotten ABC型 begin began begun
(五) 辨析：have been to, have gone to ＆have been in
have / has been to 意为“____________”, 现在已经不在那里了。一般与表示频率的副词或次数连用。
曾经去过某地
I _________ to Beijing twice.我去过北京两次了。(已经回来)
have been
have / has gone to 意为“__________”, 表示到了某地或正在去某地的途中, 即说话时该人不在现场,
到某地去了
My mom___________ the supermarket.我的妈妈去超市了。(人不在现场)
has gone to
have been in 意为“_________”, 常与表示一段时间的状语连用。
已在某地
I ___________ Beijing for two years.我在北京2年龄了。
have been in
Look and say
Activity 8
Lead to objective 2 test it
Do you know the usage of the modal verbs
情态动词的结构和用法
Observation and discussion 观察与讨论
1.Ken can climb up trees like a koala.
2.Tracy could ride a bicycle when she was five years old.
3.You mustn't play with fire. It is dangerous.
4.It's raining outside, so I have to take an umbrella with me.
5.As a student, we should obey the school rules.
6. The light is on in the office. Someone may be there.
(一) 情态动词有无人称的变化？
(二) 情态动词后接动词的什么形式？
(三) 情态动词有哪些用法？哪些情态动词有这种用法？
Look and say
Activity 8
Lead to objective 2 test it
评价标准：根据所学情态动词的知识填空，正确填出1个空格得1分，共6分。加上下2页，本活动共14分。 我得（ ）分。
情态动词的结构和用法
(一) 情态动词有无人称的变化？
1. 情态动词本身有一定的词义, 表示说话人的情绪、态度或语气, 但 不能单
独作谓语, 只能与其他动词构成谓语。情态动词没有____和__的变化常见的有:
can (could), may (might), must, need, shall (should), will (would)等。
人称
数
(二) 情态动词后接动词的什么形式？
2. 情态动词后接__________。否定式是在情态动词后面加_____。个别情态动词有过去式形式，可用来表达更加___________的语气。
Ken can climb up the trees like a koala.
Tracy ______(can) ride a bicycle when she was five years old.
You mustn’t play with fire. It is dangerous.
动词原形
not
客气、委婉
could
(三) 情态动词有哪些用法？哪些情态动词有这种用法？
a. 表能力: can, could, be able to
Look and say
Activity 8
Lead to objective 2 test it
评价标准：根据所学情态动词的知识填空，正确填出1个空格得1分，共4分。加上上1页下1页，本活动共14分。 我得（ ）分。
情态动词的结构和用法
(三) 情态动词有哪些用法？哪些情态动词有这种用法？
a. 表能力: can, could, be able to
情态动词can表示“能力”时，与be able to同义，否定形式为_____。can 表示现在的能力，其过去式_______表示过去的能力。
can’t
could
—Can your friend eat with chopsticks — Yes, but she can’t use them well.
—Could your father play golf when he was young
—No, he couldn't. But he could play table tennis.
b. 表推测: might, could, may, can, must, can’t (可能性依次递增)
might, may, can, must都可表示“推测”， may和must表“推测”常用语肯定句，can表“推测”常用于否定句和疑问句。
After a long walk, the children _____ be very tired now.
must
—I saw Lily in the supermarket this morning.
—No, it _____be her. She moved to Australia the day before yesterday.
can't
Look and say
Activity 8
Lead to objective 2 test it
评价标准：根据所学情态动词的知识和语境填空，正确填出1个空格得1分，共4分。加上上2页，本活动共14分。 我得（ ）分。
情态动词的结构和用法
(三) 情态动词有哪些用法？哪些情态动词有这种用法？
c. 表建议: shall, _______, had better
You should study hard if you want to be a scientist in the future
You had better ask your parents for advice.
d. 表委婉的“请求；许可”: may, might, can, ______, will, would
当“May\Can\Could I …”表示“请求；许可”时，could在表示“请求；许可”时，语气更_____。肯定回答常用“Yes,please.”\“certainly”等，否定回答常用“No, you can’t.”等。
—May I borrow your math book — Sure. Here you are.
—Could I watch TV now — Sorry. you can't.
e. 表义务: must, need, have to
I must study hard and get good grades.
It's raining outside. I _______(must or have to) stay at home.
have to 意为“不得不，必须”，强调客观情况。
should
could
委婉
have to
Look and fill
Activity 9
Lead to objective 3 test it
评价标准：前3题选择填空，现在正确1个题得1分，共3分；后面4个题词形填空完成句子变换句型，正确完成1个题得2分，共8分。加上下1页，本活动共21分。 我得（ ）分。
1. Look! Some old people ________ in the park.
A. sings B. sing C. are singing
2. —Don’t make noise! The children ________online. —Sorry, I won’t.
A. studies B. are studying C. studied D. were studying
3. —Peter, what are you doing —Oh, I ________ a report about national heroes.
A. will write B. am writing C. wrote D. have written
4.You used _________ (go) to school by bike，didn't you
5. 我习惯于晚饭后打篮球。I ____ ____ ____ _____basketball after dinner.
6.这种小刀是用来切东西的。
This kind of knife ____ ____ ____ ____ things.
7.He used to spend much time playing computer games.（改一般疑问句）
____ he ____ ____ ____ much time playing computer games
to go
am used to playing
are used to cut
Did use to spend
Look and fill
Activity 9
Lead to objective 3 test it
评价标准：用所给单词的适当形式填空，正确填出1个空格得1分，共10分。加上上1页，本活动共21分。 我得（ ）分。
用括号内所给动词的适当形式填空。
1. The Secondary School Entrance Exam _______ (hold) in June.
2. A strange noise _________ (hear) by his mother last night.
3. A wide road __________ (build) between the two villages by those people next year.
4.Actions should________(take) to protect the earth.
5.I _________ (be) in Beijing for two years.
6. I _____ never _____ (hear) of that man before.
7. Tom __________ (work) there since two years ago.
8. The twins _____________ (wash) the clothes for an hour.
9. He ___________ (play) basketball since three years ago.
10. How long ______ Sally _______ (sing) yet
is held
was heard
will be built
be taken
have been
have heard
has worked
have washed
has played
has sung
Look and fill
Activity 10
Lead to objective 3 test it
评价标准：用所给单词的适当形式填空，正确填出1个空格得1分，共11分。本活动共11分。 我得（ ）分。
Fill in the blanks with the correct forms of the verbs in brackets.
4a
Joe: _____ you ever _____ (take) part in an environmental project
Ken: Yes, I have. I _______ (help) with a Clean-Up Day last year.
It was __________ (consider) the biggest clean-up project
this city______ ever ________ (have).
Joe: How many people ________ (take) part
Ken: I ______ (think) more than 1,000 people ______(come) to help out.
Joe: That’s fantastic! I guess everyone in this city is ______ (try) to improve the environment.
Ken: Yes, we can’t afford to________ (wait) any longer to take action!
Have
helped
considered
had
had
took
think
came
trying
wait
taken
take part in sth/doing sth 参加
afford to do sth 负担得起
take action 采取行动
Look and fill
Activity 11
Lead to objective 3 test it
评价标准：根据语境用所给的情态动词填空，正确填出1个空格得1分，共9分，空格答案不止1个。本活动共9分。 我得（ ）分。
4b
Fill in the blanks with the appropriate modal verbs from the box.
may/might
should/have to/must
can/could/should
can/could/should
have to
can/could/should
can/could
can/could
would/can/could
pay for 付费；付出代价
add up 合计；加起来
Look and say
Activity 12
Lead to objective 3 test it
评价标准：根据例子，每个学生列出1个保护环境的方法，俩俩对话谈论保护环境的方法，能够正确谈论所列的方法，每个学生得4分，共4分。本活动共4分。 我得（ ）分。
Make a list of things that people can do to help the environment and discuss your list with your partner.
4c
I think that everyone should use public transportation.
I disagree. It’s difficult for parents with young children to use public transportation...
n. 运输业；交通运输
Look and say
Lead to objective 3
It's everyone’s duty to protect the environment. And it should begin from every aspect of our daily life. Only by changing the way we treat the environment can we get along well with it. Only by saving the earth can we save ourselves.
Language points
We can’t afford to wait any longer to take action!
我们承担不起继续等待而不采取行动！
afford v. 承担得起; 买得起; 提供, 给予
常与can, be able to等连用, 多用于否定句或疑问句。
afford sth. 买得起 / 承受得起某物
afford to do sth. 有能力做某事 / 负担得起做某事
e.g. Can you afford the mobile phone
We can’t afford to pay such a price.
Class test
评价标准：根据语境用所给单词的适当形式填空，正确填出1个空格得1分，共5分。本活动共5分。 我得（ ）分。
一、用所给词的适当形式填空
1. The old man used _____ (be) a teacher.
2. We should _____ (clean) the room every day.
3. Look! Tom __________ (sleep) in his room.
4. Lots of trees __________(plant) on the hill every year.
5. He ________ (live) here for 20 years.
to be
clean
is sleeping
are planted
has lived
Class test
评价标准：根据汉语完成句子，正确填出1个句子得2分，共10分。本活动共10分。 我得（ ）分。
二、根据所给汉语完成英语句子。
1. 这条河过去很干净。
The river _______ _______ _______ so clean.
2. 我们应该帮助拯救鲨鱼。
We should _______ _______ the sharks.
3. 然而，很多人忘记了拯救地球从小事做起。
However, many forget that saving the earth______ ____ small things.
4. 在很多商店，你不得不付塑料袋的费用
In some stores, you now have to ___ _____ plastic bags.
5. 我们认为每个人都应该使用公共交通工具。
We think that everyone should use __________ _________.
used to be
help save
begins with
pay for
public transportation
Self-evaluation
本节课共182分 ，我共得（ ）分。
我的评价等级（在等级括号内打钩）：
获得至少150分 ，优秀（ ）；
获得至少130分 ，良好（ ）；
获得至少120分 ，合格（ ）。
【学后反思】
一、完成自我评价表：
1.本节课我共新学单词和短语有___________个，能完全记住并会初步使用的有：___________________________________________________; 还不能记住和使用的有：______________________________________________________________________________
2.对我有帮助的学习方法有（请在括号里打钩）：
( )(1)能够根据视频内容回答问题完成句子来感悟本节课要复习的语法。
( )(2)能够积极参与课堂，学会了知识的总结和归纳。
( )(3)通过问题引领来复习本单元要复习的时态和情态动词被动语态的用法。
( )(4)能够通过观察和讨论来总结本节课要复习的语法。
Homework
1. 熟记Grammar Focus 里面的句子。
2. 熟读Section B P101对应的单词；
预习课本P101，完成1a.
谢谢
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Unit13 Section A Grammar focus-4c分层作业
一、用所给单词的正确形式填空
用所给单词或短语的适当形式填空。每个单词或短语限用一次
answer bring catch cut off fall
1．Alice，please turn down the music，I __________ an important phone now.
2．His finger __________ by a machine while working.
3．The number of sharks__________ by over 90 percent in the last 20 to 30 years.
4．About 70 million sharks __________ and traded every year.
5．If the numbers of sharks drop too low，it __________ danger to all ocean life.
6．Have you ever__________(take) part in an environmental club
7．The old man can't afford__________(pay) for the new computer at all.
8．The students in this school made the garden a place for________________ (science) experiments.
9．It is difficult for parents with young children to use the public_____________(transport).
10．The Clean-Up-Day is regarded as the__________(big) project in our school.
二、完成句子
根据汉语意思完成句子，每空一词。
11．当你出去的时候，不要忘记关灯。
Don't forget to _________________ the lights when you go out.
12．你愿意参加校运动会吗？
Would you like to _________________the school sports meeting
13．你买所有这些东西一共花了多少钱？
How much did you _________________all these things
14．我至今没有收到她的回复。
I have had no reply from her _________________．
15．我觉得到我采取行动的时候了。
I felt that it was time for me _________________．
三、单项选择
16．—To achieve a bright future, we should _____ study hard ________ keep in good health.
—I agree with you.
A．not；but B．not only；but also C．neither；nor D．either；or
17．Today’s young people can’t live without smart phones. They keep their hands on the phones whenever they go, even while they______ meals.
A．had B．will have C．were having D．are having
18．Please _____ the water when you brush your teeth.
A．take down B．turn up C．take away D．turn off
19．---What do you think of the new foreign teacher Thomson
---Pretty good. I think he ______ a great job so far.
A．does B．did C．has done D．was done
20．You are __________ a child and you should do everything by yourself.
A．no longer B．not anymore C．not more D．not longer
21．─Have you __________ the shark fin soup
─Yes, I__________ my pen pal and knew it.
A．heard of; heard from B．heard of; heard about
C．heard of; gotten a letter D．heard about; received from
22．There __________ be a lot of sharks, but now they__________ endangered animals.
A．is used to; become B．would; become
C．used to；have become D．would；have become
23．Would you please stop__________ something？
A．to drink B．drank C．to drinking D．drink
24．Some people think it's difficult for parents with young children to use public ________.
A．action B．advantage C．transportation
25．—How much is the ticket to Central Park
—A one-way ticket ________ $40, and you can ________ another $20 for a round-trip.
A．costs；pay B．cost；spend C．pay；spend
四、完形填空
Madison Stump is a 13-year-old entrepreneur (企业家) in the USA．To save our planet, she has________26________.
Madison lives in a “green” family. She is___27___trying to be 100% earth friendly. One day, Mandison was thinking over what else she could do to help the environment. ___28___, she thought, “Why not___29___those used boxes and paper to create beautiful notebooks And I can sell them to help people in need.” That night, Mandison made her first notebook with scrap paper (废纸), and she used an empty gum box for a____30____It was the___31___of her green business.
Mandison’s first customer was her sister. She, of course, never___32___it! However, Mandison didn’t mind because she got to see her use it. Before you know it, all Mandison’s school friends were asking to buy the amazing notebooks. Then, Mandison’s dad came up with the___33___idea of starting a website, PaperAgain.com, so that these notebooks could be bought online.
Now Mandison is the___34___of a real business! Her notebooks are selling at the store in her hometown. And she is often____35____on the local television news!
26．A．set out B．set off C．set up D．set at
27．A．always B．already C．never D．nearly
28．A．Happily B．Luckily C．Finally D．Suddenly
29．A．return B．recycle C．repair D．replace
30．A．cover B．paper C．face D．book
31．A．end B．change C．start D．entrance
32．A．paid for B．made for C．sent for D．waited for
33．A．familiar B．silly C．dull D．wonderful
34．A．worker B．winner C．owner D．master
35．A．explained B．reported C．replied D．spread
五、阅读判断
Have you seen some machines that eat used plastic bottles and give some coins to the users(用户)
Recently , such machines have appeared at universities in Chongqing . They can turn rubbish into treasure and encourage the public to recycle rubbish. The machine is as large as a fridge. Users put an empty bottle in the machine, It is identified(识别) by a small camera. Then it is put into a built-in bin. The users can get some coins. They can also give away the money.
When the machine is filled with bottles . it will tell the company’s(公司) head office. Nearby stations will send workers to have bottles collected . packed and send to the company.
The bottle recycling machines could greatly encourage the public to recycle rubbish and save natural resources(资源) .Now the machine only eats plastic bottles. At sometime in the future it will also cover others. Such as glass bottles .to turn more rubbish into treasure and make full use of the natural resources
People can also see similar machines in Shanghai. In the future, more such machines will appear at some large stations. Bus stops, neighborhoods and schools.
根据短文内容，判断下列句子正误。正确的用“T”表示，不正确的用“F”表示。
36．The bottle recycling machine eats plastic bottles and give some money to the users(用户)
37．When the machine is full , some workers will be sent to collect the bottles .
38．So far, the bottle recycling machine has been able to accept glass bottles .
39．There is no bottle recycling machine in Shanghai now.
40．The passage encourages the public to protect the environment by using the bottle recycling machines
Unit 13 Section A Grammar focus-4c分层作业答案与详解
一、用所给单词的正确形式填空
【答案】1．am answering 2．was cut off 3．has fallen 4．are caught 5．will bring
【解析】1．句意：爱丽丝，把音乐关小点，我在回复一个重要电话。
考查一般现在时态。短语answer a phone意为“回复电话”，根据前一句提醒要关小音乐可知，此时“我”正在做一件重要事情，故填am answering。
2．句意：在工作时，他的一个手指被机器切割了。
考查一般过去时被动语态。短语cut off砍掉。根据句意可知事故发生在过去，手指和动作砍掉是被动关系，可知用一般过去时被动语态，故填cut off。
3．句意：在过去的二三十年里，鲨鱼的数量减少了超过90%。
考查动词时态。根据常识可知数目的减少用fall，后面的in the last 20 to 30 years. 在过去的二三十年和现在完成时连用，the number做主语，谓语动词用单三，故填has fallen
4．句意：每年大约七千万鲨鱼被扑杀和买卖。
考查一般现在时被动语态。鲨鱼和catch扑杀是被动关系，由every year每年可知是一般现在时，主语sharks是复数，be 动词用are，故填are caught。
5．句意：如果鲨鱼的数量下降得太少，那么会对海洋的生命带来危险。
考查一般将来时态用法。短语bring danger意为带来危险，If引导的条件状语从句用一般现在时，主句用一般将来时态，故填will bring。
【答案】6．taken 7．to pay 8．scientific 9．transportation 10．biggest
【解析】6．句意：你曾经参加过环境俱乐部吗？根据句意和ever可知用现在完成时态，结构是have/has+过去分词；故填. taken
7．句意：这个老人根本不能支付新电脑的钱。afford to do sth能够做某事；故填to pay
8．句意：这个学校的学生弄了花园的一个地方为了科学实验。scientific形容词，科学的，修饰名词 experiments.做定语；故填 scientific
9．句意：对带小孩的父母来说使用公共交通工具很难。transportation 名词，交通；根据句意故填 transportation
10．句意：清洁日在我们学校被看作是最大的工程。根据in our school.可知用最高级；故填. biggest
二、完成句子
【答案】11．turn off 12．take part in 13．pay for 14．so far 15．to take action
【解析】11．句意：当你出去的时候，不要关灯。根据语境可知此句是主从复合句，主句用否定祈使句，从句用一般现在时。否定祈使句：don’t+动词原形；忘记做某事：forget to do sth.；灯：the lights ；当…时候：when ；你：you；出去：go out ；结合汉语和语法可知此句翻译是Don't forget to turn off the lights when you go out.结合英文提示可知答案是turn off 。
12．句意：你愿意参加校运动会吗？本句是交际句型。你愿意做…吗？：Would you like to do sth.？参加：；校运动会：the school sports meeting；结合汉语和语法可知此句翻译是 Would you like to take part in the school sports meeting 结合英文提示可知答案是take part in。
13．句意：你买所有这些东西一共花了多少钱？根据语境可知此句时态是一般过去式，本句是how much引导的特殊疑问句。多少钱：How much ；所有这些东西：all these things；花钱买某物 ：pay sm. for sth./spend sm. on sth.；结合汉语和语法可知此句翻译是How much did you pay for all these things 或How much did you spend on all these things 结合英文提示可知答案是pay for 。
14．句意：我至今没有收到她的回复。根据语可知此句时态是现在完成时。至今：so far；没有收到她的回复：have no reply from her；结合汉语和语法可知此句翻译是I have had no reply from her so far．结合英文提示可知答案是so far 。
15．句意：我觉得到我采取行动的时候了。根据语境可知此句时态是一般过去式，此句是主从复合句。我：I；觉得：feel；到某人该做某事的时候了：it is time for sb. to do sth.；采取行动：take action；所以“到我采取行动的时候了”是： it is time for me to take action。结合汉语和语法可知此句翻译是I felt that it was time for me to take action. 结合英文提示可知答案是to take action。
点睛：首先根据汉语提示确定句子的时态，然后把每个汉语词语翻译成英语单词或短语，然后根据语法连词成句。
三、单项选择
16．—To achieve a bright future, we should ____________ study hard ____________ keep in good health.
—I agree with you.
A．not；but B．not only；but also C．neither；nor D．either；or
【答案】B
【详解】句意：为了实现一个光明的未来，我们不但应该努力学习而且应该保持身体健康。
考查并列连词。not…but 不是…而是；not only …but also；不但…而且； neither…nor 既不……也不；either…or或者……或者。A、C、D项均不符合题意，故选项B正确。
17．Today’s young people can’t live without smart phones. They keep their hands on the phones whenever they go, even while they______ meals.
A．had B．will have C．were having D．are having
【答案】D
【详解】句意：如今的年轻人没有智能手机就无法生存。当他们吃饭的时候，他们随时都会拿起手机。考查动词时态辨析题。while当……的时候，表示从句动作和主句动作同时发生，常用进行时态。根据句意语境，可知选D。
18．Please _____ the water when you brush your teeth.
A．take down B．turn up C．take away D．turn off
【答案】D
【详解】句意：当你刷牙的时候, 请关闭水源。
考查动词短语辨析。take down取下; turn up调高; take away带走; turn off关掉。根据常识可知，故选D。
19．---What do you think of the new foreign teacher Thomson
---Pretty good. I think he ______ a great job so far.
A．does B．did C．has done D．was done
【答案】C
【详解】试题分析：句意：你觉得新外教汤姆森如何 - -相当好。我想到目前为止他表现很好。so far. 到目前为止，用于现在完成时态。故答案为C。
考点：考查动词的时态。
20．You are __________ a child and you should do everything by yourself.
A．no longer B．not anymore C．not more D．not longer
【答案】A
【详解】句意：你不再是一个孩子，你应该自己做一切事情。
考查副词短语用法。no longer不再，和not any longer意思相同；not …anymore是不再，B项有误；C项格式错误；D. not longer格式不正确。根据句子意思可知选A。
21．─Have you __________ the shark fin soup
─Yes, I__________ my pen pal and knew it.
A．heard of; heard from B．heard of; heard about
C．heard of; gotten a letter D．heard about; received from
【答案】A
【详解】句意：—你听说过鲨鱼翅汤吗？—对，我收到我笔友的来信，知道它的。
考查动词短语和动词时态用法。hear of指偶尔听说；hear from收到某人的来信；hear about得知。根据第二句and后面的knew是一般过去时可知，第二空是一般过去时，排除C；短语hear from意为收到某人来信，故选A。
22．There __________ be a lot of sharks, but now they__________ endangered animals.
A．is used to; become B．would; become
C．used to；have become D．would；have become
【答案】C
【详解】句意：过去曾经有很多鲨鱼，但是现在它们变成濒临灭绝的动物。
考查动词时态用法。固定搭配there used to be sth.意为过去曾经有某物，现在没有了；根据句意第二空用现在完成时have become，故选C。
23．Would you please stop__________ something？
A．to drink B．drank C．to drinking D．drink
【答案】A
【详解】句意：请停下来喝点东西好吗？
A.to drink喝，动词不定式； B.drank喝，过去式； C.to drinking不定式符号to后应使用动词原形，故该选项形式错误； D.drink动词原形。本题考查stop后跟动词不定式的用法。stop是及物动词，后跟动词不定式，指“停下手中的事去做某事”，是固定搭配。故选A。
【点睛】一些动词既可以跟动名词，也可以跟动词不定式作宾语，但是表达的意思不同：forget doing sth.指忘记做过某事，forget to do sth. 指忘记做某事了，没有做某事；stop doing sth. 表示“停止做某事”，stop to do sth. 表示“停下来去做某事”；remember doing sth.表示“记得做过某事”，remember to do sth.表示“记得去做某事”。
24．Some people think it's difficult for parents with young children to use public ________.
A．action B．advantage C．transportation
【答案】C
【详解】句意：一些人认为对于带小孩儿的父母使用公共交通出行方式是困难的。A“行动、动作”；B“优势，优点”；C“交通工具/方式”。Public transportation为固定短语，意为“公共交通”，结合语境，故选C项。
25．—How much is the ticket to Central Park
—A one-way ticket ________ $40, and you can ________ another $20 for a round-trip.
A．costs；pay B．cost；spend C．pay；spend
【答案】A
【详解】句意：——去中央公园的票多少钱？——单程票40美元，你可以再付20美元要一张往返票。
考查动词辨析。cost花费，物作主语；pay支付，人作主语；spend花费，人作主语。第一空的主语是物，排除C选项。第二空根据for可知，此处用pay for的固定搭配，故选A。
四、完形填空
【答案】
26．C 27．A 28．D 29．B 30．A 31．C 32．A 33．D 34．C 35．B
【分析】这篇短文主要介绍了一位美国的少年企业家，为了保护环境，她利用废旧纸箱和废纸制作笔记本，并且在网上销售。
26．句意：为了拯救我们的星球，她成立了。
短语辨析。A.出发，陈述；B.动身，引起；C.建立，开业；D.袭击，设置成。联系下文，可知他建立了一个绿色产业。故选C。
27．句意：她总是努力做到100%对地球友好。
副词辨析. A.一直,总是;B.已经;C.从来不,永远不;D.几乎,差不多.结合语境可知此处指的是她总是尝试百分百的对地球友好.故选A。
28．句意：突然，她想，“为什么不回收那些用过的盒子和纸来制作漂亮的笔记本呢？我可以卖掉它们来帮助有需要的人。”
联系下文描述,可知此处指的是她突然想到,故选D,突然地。
29．句意：突然，她想，“为什么不回收那些用过的盒子和纸来制作漂亮的笔记本呢？我可以卖掉它们来帮助有需要的人。”
动词辨析. A.归还;B.回收利用;C.修理;D.取代,代替.联系下文,可知此处指的是回收利用些箱子和纸,做成美丽的笔记本,故选B,回收利用。
30．句意：当晚，曼迪森用废纸做了她的第一个笔记本，她用一个空的口香糖盒做封面。
名词辨析, A.盖子,封面;B.试卷,纸张;C.外观,脸;D.书.联系下文,可知此处指的是她用一个空的胶水盒作封面,故选A。
31．句意：这是她绿色事业的开始。
结合语境可知此处指的是这是她的绿色产业的第一次开始,故选C,开始,启动。
32．句意：当然，她从来没有付钱！
结合语境可知此处指的是她的妹妹永远不会为此付款,故选A,为……付款。
33．句意：然后，曼迪森的爸爸想出了一个很好的主意，建立一个网站paperagain.com，这样这些笔记本就可以在网上买到了。
形容词辨析。A.相似的；B.愚蠢的；C.迟钝的，呆滞的；D.奇妙的，极好的。联系下文，可知此处指的是好主意，故选D。
34．句意：现在曼迪森是一家真正的企业的老板！
联系下文，可知此处指的是她是一个真实的产业的所有人，故选C，所有者。
35．句意：她经常被报道在当地的电视新闻！
联系下文，可知当地电视新闻上常常报道她。故选B，报道，报告。
考点：传记类记述文
点评：这篇短文内容比较简单，理解不难。各小题与上下文联系比较紧密，答题中一定要注意联系上下文。答完后多读几遍，看看是否符合逻辑，适当修改。个别小题可以当作单独的词义辨析题来做，先区分词义，结合语境选出最能使语句通顺的答案。
五、阅读判断
【答案】36．T 37．T 38．F 39．F 40．F
【分析】试题分析：这篇短文主要讲述了瓶子回收机回收旧塑料瓶的原理及在保护环境方面的作用，以此来鼓励我们想办法保护环境。
36．T细节理解题。根据短文第一段“Have you seen some machines that eat used plastic bottles and give some coins to the users ”可知本句说法正确。
37．T细节理解题。根据短文第三段描述，可知当机器里面满了时，就会发送信息给总部，然后总部就会派工人来收集瓶子。故本句说法正确。
38．F细节理解题。根据短文第四段“At sometime in the future it will also cover others, such as glass bottles,”可知将来这种回收机才能接收玻璃瓶。故本句说法错误。
39．F细节理解题。根据短文最后一段“People can also see similar machines in Shanghai.”可知现在上海也有瓶子回收机了。故本句说法错误。
40．F主旨大意题。这篇短文主要讲述了瓶子回收机回收旧塑料瓶的原理及在保护环境方面的作用，这样可以保护环境。故本句说法正确。
【考点定位】考查科普环保类阅读
21世纪教育网 www.21cnjy.com 精品试卷·第 2 页 （共 2 页）
HYPERLINK "http://www.21cnjy.com/" 21世纪教育网(www.21cnjy.com)Unit 13 We’re trying to save the earth!Section A Grammar focus-4c 导学案
班级： 姓名：
科目： 授课教师：
学习目标 1. 通过观看视频和图片，能够正确地回答问题完成句子，能够找出不同事态的句子，能够感悟本节课要复习和总结的语法，能够沉浸式创设情景来复习本节课要复习的语法。2. 通过翻译Grammar focus里的句子，能够正确地完成句子，能够通过问题引领完成句子来说出现在进行时、现在完成时、情态动词、被动语态、used to的表意功能和用法。3. 通过完成4a\4b\4c，能够正确地用所给单词的适当形式填空，能够用所给的单词的正确时态和语态填空，能在实际情景对话中认识解决空气污染和垃圾污染的方法。
学习重难点 能正确区分和使用以下语法结构：现在进行时、used to、被动语态、现在完成时、情态动词。并能在灵活的语境中运用本课学习的语法结构。
自学指导 自学检测及课堂展示
课前预习 课前预习 把下列英语翻译成汉语1.take part in____________ 2.afford______________3.turn off_____________ 4.reusable_____________ 5.pay for______________ 6.take action_____________7.transportation______________
情景导入 I.Enjoy a short video and answer the questions.1. What’s happening to the earth 2. What caused the problem？3. What should we do to reduce the problem？II. Let’s watch another video and pay attention to the tense of different sentences.Can you Identify(识别)the sentences in the simple past tense一般过去时 Can you Identify the sentences in the present progressive tense现在进行时 Can you Identify the sentences in the present perfect tense现在完成时 Can you Identify the sentences with modal verbs含有情态动词的句子
学习理解 I.Read the sentences and translate them.Fill in the blanks according to grammar focus.1. We’re trying ______ ______ the earth.我们正在尽力地拯救地球。2. The river ______ _____ be so clean.河流过去常常是如此干净。3. The air ____ badly ________.空气被严重地污染了。4. No scientific studies ______ ____ that shark fins are good for health.没有科学研究显示鲨鱼鱼鳍对健康有益处。5. We _____ ______ save the sharks.我们应该帮助拯救鲨鱼。II.What tense can you identify(识别) Observation and discussion 观察与讨论1.Be quite, please. The baby is sleeping.2.Look! Kenny is swimming happily in the pool.3. Now people are taking action animals.Let's join them.4.Listen to carefully please. I am talking about something very important.(一) 现在进行时的结构是什么？(二) 什么时候用现在进行时(用法)？(三) 现在进行时的标志性词语有哪些？(四) 现在分词的构成规则有哪些？III. Do you know the usage of the phrase”used to” Observation and discussion 观察与讨论1. James used to wake up late, but now he gets up very early.2. Did Cherry use to live in Shanghai when she was a child (一) used to 表示什么意思？后接什么？(二) used to 句型的否定句和一般疑问句的形式是什么？(三) used to 和 be used to 的区别？IV.What tense is the sentence Observation and discussion 观察与讨论1. Photos and experiences are shared on the microblog.2.The video was sent our quickly and was seen by many schoolmates.3. In the future, robots will be used by more and more people.(一) 主动语态和被动语态有什么区别？(二) 被动语态的构成是什么？(三) 主动语态变成被动语态的步骤是什么？(四) 一般现在时，一般过去时，一般将来时和情态动词的被动语态结构分别是什么？(五) 被动语态的用法是什么？V.Do you know the usage of the present perfect tense Observation and discussion 观察与讨论1. He has kept this book for over 2 months. Please ask him to return it soon.2. We have lived here since my little sister was born. I like the people here.3. Have you ever been to Australia It is a beautiful country.4. He has already tried this to solve the problem, but it didn't work.(一) 现在完成时态的用法有哪些？(二) 现在完成时的结构是什么？(三) 现在完成时的标志词有哪些？(四) 过去分词有哪些构成规则？(五) 辨析：have been to, have gone to ＆have been inVI.Do you know the usage of the modal verbs Observation and discussion 观察与讨论1.Ken can climb up trees like a koala.2.Tracy could ride a bicycle when she was five years old.3.You mustn't play with fire. It is dangerous.4.It's raining outside, so I have to take an umbrella with me.5.As a student, we should obey the school rules.6. The light is on in the office. Someone may be there.(一) 情态动词有无人称的变化？(二) 情态动词后接动词的什么形式？(三) 情态动词有哪些用法？哪些情态动词有这种用法？
应用实践-
I.Look and fill.1. Look! Some old people ________ in the park. A. sings B. sing C. are singing2. —Don’t make noise! The children ________online. —Sorry, I won’t.A. studies B. are studying C. studied D. were studying3. —Peter, what are you doing —Oh, I ________ a report about national heroes.A. will write B. am writing C. wrote D. have written4.You used _________ (go) to school by bike，didn't you 5. 我习惯于晚饭后打篮球。I ____ ____ ____ _____basketball after dinner.6.这种小刀是用来切东西的。This kind of knife ____ ____ ____ ____ things.7.He used to spend much time playing computer games.（改一般疑问句） ____ he ____ ____ ____ much time playing computer games 用括号内所给动词的适当形式填空。1. The Secondary School Entrance Exam _______ (hold) in June.2. A strange noise _________ (hear) by his mother last night.3. A wide road __________ (build) between the two villages by those people next year. 4.Actions should________(take) to protect the earth. 5.I _________ (be) in Beijing for two years.6. I _____ never _____ (hear) of that man before.7. Tom __________ (work) there since two years ago.8. The twins _____________ (wash) the clothes for an hour.9. He ___________ (play) basketball since three years ago.10. How long ______ Sally _______ (sing) yet II.4a.Fill in the blanks with the correct forms of the verbs in brackets.Joe: _____ you ever _____ (take) part in an environmental project Ken: Yes, I have. I _______ (help) with a Clean-Up Day last year. It was __________ (consider) the biggest clean-up project this city______ ever ________ (have). Joe: How many people ________ (take) part Ken: I ______ (think) more than 1,000 people ______(come) to help out. Joe: That’s fantastic! I guess everyone in this city is ______ (try) to improve the environment. Ken: Yes, we can’t afford to________ (wait) any longer to take action! III.4b. Fill in the blanks with the appropriate modal verbs from the box.IV. 4c.Make a list of things that people can do to help the environment and discuss your list with your partner. 略V.Look and say.略VI.Language points.略
课堂练习 一、一、用所给词的适当形式填空1. The old man used _____ (be) a teacher. 2. We should _____ (clean) the room every day. 3. Look! Tom __________ (sleep) in his room. 4. Lots of trees __________(plant) on the hill every year. 5. He ________ (live) here for 20 years. 二、根据所给汉语完成英语句子。1. 这条河过去很干净。The river _______ _______ _______ so clean.2. 我们应该帮助拯救鲨鱼。We should _______ _______ the sharks. 3. 然而，很多人忘记了拯救地球从小事做起。However, many forget that saving the earth______ ____ small things. 4. 在很多商店，你不得不付塑料袋的费用In some stores, you now have to ___ _____ plastic bags.我们认为每个人都应该使用公共交通工具。We think that everyone should use __________ _________ ____________
作业 1. 熟记Grammar Focus 里面的句子。2. 熟读Section B P101对应的单词；预习课本P101，完成1a.
【参考答案】
课前预习 课前预习 把下列英语翻译成汉语参加 2.承担得起（后果）；买得起 3.关掉 4.可重复使用的；可再次利用的付费；付出代价 6.采取行动 7.运输业；交通运输
情景导入 I.Enjoy a short video and answer the questions. II. Let’s watch another video and pay attention to the tense of different sentences.
学习理解 I.Read the sentences and translate them.Fill in the blanks according to grammar focus.II.What tense can you identify(识别) III. Do you know the usage of the phrase”used to” IV.What tense is the sentence V.Do you know the usage of the present perfect tense VI.Do you know the usage of the modal verbs
应用实践-
I.Look and fill. II.4a.Fill in the blanks with the correct forms of the verbs in brackets. III.4b. Fill in the blanks with the appropriate modal verbs from the box.IV. 4c.Make a list of things that people can do to help the environment and discuss your list with your partner. V.Look and say.VI.Language points.略
课堂练习 一、用所给词的适当形式填空1.to be 2.clean 3.is sleeping 4.are planted 5.has lived二、根据所给汉语完成英语句子。1.used to be 2.have save 3.begins with4.pay for 5.public transportation
作业 略
