外研版（2019）选择性必修第一册 Unit 6 Nurturing nature Using language 教学课件（36张PPT含音频）
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| 名称 | 外研版（2019）选择性必修第一册 Unit 6 Nurturing nature Using language 教学课件（36张PPT含音频） |  | |
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| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-07-12 17:41:09 | ||
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(共36张PPT)
Unit 6
Nurturing nature
Look at the following sentences:
What can you find
have/has been +动词的现在分词
I have been writing the letter since then.
Has he been studying hard since the new term began
I have been meeting her at the library.
I have been looking forward to seeing my family.
Sorry, I'm late. Have you been waiting long
Look at the sentences from the reading passage and answer the question.
Which of these statements are true about sentence (a)
1) Wild animals started using these passages in the past.
2) Wild animals used these passages only once.
3) Wild animals still use these passages now.
What is the difference between the expressions in bold in sentences (a) and (b)
They are different in form and meaning. For sentence (a) the form is "have been doing", while for sentence (b) the form is "have done" In meaning, the bold part in sentence (a) means the action is continuous from the past; while the bold part in sentence (b) means the action happened once in the past.
√
√
构成：
由“have/has been +动词的现在分词”构成，第三人称单数用 has，其他人称用 have。
用法：
①表示从过去开始一直持续到现在的动作，该动作在说话时仍在继续进行，
可能还要继续下去，也可能刚刚结束。
②带有某种感彩
③不能用现在完成进行时的情况
区分：
现在完成时和现在完成进行时的区别
Present perfect continuous ——现在完成进行时
表示从过去开始一直持续到现在的动作，该动作在说话时仍在继续进行，可能还要继续下去，也可能刚刚结束。
这个时态常和 recently、all day、this week 等状语或 for、since 引导的时间状语从句连用。例如：
We have been studying for nearly 3 hours.
我们已经学了近3个小时了。
He has been studying traditional Chinese medicine since1999.
他从1999年开始学习中医。
用法
用法
带有某种感彩：
Recently Li Hua has been helping his mother do housework regularly.
最近李华经常帮他妈妈做家务。 (赞许的感彩)
I'm glad the lecture is finished! I've been sitting for three hours.
很高兴演讲终于结束了，我已经整整坐了三个小时了。 (强调坐的时间长)
用法
不能用现在完成进行时的情况：
①某些不能用于进行时的动词同样也不能用于现在完成进行时，只能用现在完成时。如：see、hear、know、have、like、be 等。
他已经感冒两个星期了。
He has been having a cold for two weeks.
He has had a cold for two weeks.
②不具有延续意义的动词，如:finish、come、go、marry等不能用于现在完成进行时。
(×)
(√)
区分
现在完成时和现在完成进行时的区别：
①现在完成时强调动作已经完成，但对现在有影响或其结果现在仍然存在；而现在完成进行时着意于动作本身，是一种持续的(但不一定是结束了的)活动。
I have written a book on UFO. It was finished last year.
我写了一本关于 UFO的书，这本书是去年写完的。
I have been writing a book on UFO. I should be able to finish it early next year.
我一直在写一本关于 UFO的书，我应该在明年年初就能写完。
区分
现在完成时和现在完成进行时的区别：
②现在完成时陈述事实；而现在完成进行时则强调动作在不久以前持续进行的情景,并带有感彩。
My father has lost his keys.
我父亲把钥匙丢了。(陈述事实)
My father has always been losing his keys.
我父亲老是弄丢自己的钥匙。(含责怪或无奈之意)
区分
现在完成时和现在完成进行时的区别：
③ 现在完成时既可用于状态性动词，也可用于动作性动词；
现在完成进行时通常只用于动作性动词。
I have had this computer for 10 years, with which I have written plenty of articles.
我已拥有这台电脑10年之久了，并用它写了大量的文章。
I have been writing articles with this computer for 10 years.
10年来我一直用这台电脑写文章。
区分
现在完成时和现在完成进行时的区别：
④有少数动词(如：work、study、live teach、stay 等)在表示持续一段时间时用这两种时态含义差不多，只是用现在完成进行时更强调动作的持续性。
—How long have you worked/been working here
你在这儿工作多长时间了？
—Ten years.
10年了。
Exercise
(1) You should go to bed. You ___________________ (watch) TV for 5 hours.
(2) I _________________ (write) letters since 6 o'clock.
(3) I _________________ (look) for him everywhere. Where can he be
have been watching
have been writing
have been looking
Exercise
(4) 三年以来，我们一直学英语。
________________________________ since three years ago.
(5) 近来他老是说厌倦了自己的工作。
______________________ he is tired of his work recently.
(6) 在过去的几个月，西南地区的人们一直遭受严重旱灾的影响。
People in the southwestern areas _________________________
_______________ in the past few months.
We have been studying English
He has been saying
have been suffering from
serious drought
Activity 2
Complete the passage with the correct form of the verbs in brackets.
I pull off the headset and I’m back in my living room. Thank goodness! I 5 __________________ (give) the latest virtual reality headset and, for the last twenty minutes, I 6 _________________ (use) it to explore the Amazon. This is an amazing experience and a reminder of how many species there are in the rain forest. We must do all we can to protect it.
I 1 ________________ (hear) a strange sound for a while. It’s a deep, loud roar, like a lion’s. But there aren’t any lions here... Or are there Soon I see what 2 _______________ (make) the noise: a howler monkey. Now I feel less worried. Realising that something 3_____________ (move) on my shoulder, I turn my head to look at it. Oh no! It’s a giant spider! I brush it off and it runs under some leaves. I try to bat away the huge insects, which 4 ________________ (fly) around my head in a black cloud for quite a while.
roar n. 咆哮(声);吼叫
howler monkey 吼猴
虚拟现实耳机/视图器
have been hearing
has been making
is moving
have been flying
have been given
have been using
Vocabulary
1. disturb
disturbing
disturbed
disturbance
a disturbing piece of news
a disturbing increase in the crime rate
练习：There was something about him she found __________ (disturb).
disturbing
adj. 使人烦恼的，令人不安的
adj. 不安的，烦恼的
n. 骚动；动乱；打扰；干扰
一则令人不安的消息
令人不安的犯罪率增长
Vocabulary
2. operator
operate
operation
a computer/machine operator
operate on sb. ( for...)
operate the machine
in operation
come into operation
put sth. into operation
练习：We will have to operate _______ his eyes.
v. 操作；经营；运转；动手术
n. 操作；手术
电脑/机器操作员
给某人动手术(以治疗……)
操作机器
工作中；使用中；有效
开始工作；开始生效
实施；使……运转；启用
on
Vocabulary
3. compromise
compromise
compromise on sth.
compromise with sb.
reach a compromise
make a compromise/compromises
练习：We managed to compromise _________ a price for the car.
on
v. 折中；妥协
就某事让步
与某人妥协
达成妥协
作出让步
Vocabulary
4. guarantee
guarantee to do sth.
guarantee that...
guarantee sth. for+时间
be guaranteed to do sth.
under guarantee
give sb. a guarantee
练习：That kind of behaviour is guaranteed ___________ (make) him angry.
to make
保证做某事
保证……
某物的保修期为……
必定会做某事
在保修期内
给/向某人保证
Vocabulary
5. in harmony with
harmonious
out of harmony with
eg. The violin was out of harmony with the rest of the instruments.
小提琴拉得与其他乐器不协调。
练习：We must ensure that tourism develops _______________ (与……和谐) the environment.
adj. 融洽的，和谐的
与……不协调
in harmony with
Vocabulary
6. in turn
in one's turn
by turns
take turns to do sth. /in doing sth.
It is sb's turn to do sth.
练习：When it was ___________ (轮到我), I was too excited to speak.
轮到某人
轮流；依次
轮流做某事
轮到某人做某事
in my turn
Activity 3
Look at the charts and make sentences using the present perfect continuous tense.
① The number of trees has been increasing in the last 20 years.
② Desert areas have been reducing in the last 20 years.
③ Butterfly population has been increasing/has been becoming larger and larger in the last 20 years.
Activity 4
Work in pairs.
Talk about how the environment where you live has changed.
Use the present perfect continuous tense where appropriate.
Tourism and the environment.
Read the short passage.
Ecotourism is a type of tourism that conserves the environment. It encourages people to be responsible travellers and involves educating them about the natural world. For countries such as Costa Rica, Kenya and Nepal, ecotourism is an important part of the economy. Some ecotourism holidays involve voluntary work, such as planting trees or counting endangered animals.
生态旅游
How do we put into practice ecotourism when we travel
“Only if we understand, will we care. Only if we care, will we help. Only if we help, shall all be saved.”
——Jane Goodall
Research Ecotourism Locations
Visit a Wildlife Refuge
Use Green Transportation Methods
Learn Local Customs
...
Activity 5
Listen to the conversation and choose the places mentioned.
Australia
Thailand
South Africa
Nepal
a
b
c
d
Activity 6
Listen again and complete the notes.
The first option
Rachel wants to
1 ____________________ and plant trees.
also 2 _________ rhinos, which will help protect them.
eat local food.
Rachel's dad thinks
he can eat that kind of food at home.
the activities sound like 3 _____________.
hike in the mountains
count
hard work
The second option
Rachel wants to
look after 4 ______________.
sleep in a treehouse.
Rachel's dad wants to
5 __________________ and read a book.
Compromise
They will stay in 6 _______________________.
Rachel can do ecotourism activities while her dad does what he likes.
They will go on 7 _________________________ of the jungle.
elephants
lie on the beach
a nice hotel
a one-day bike tour
Activity 7
Complete the boxes with the expressions from the conversation.
Persuading others
Compromising
Let’s find a compromise.
Let’s meet in the middle.
As a compromise, ...
The fact is that...
Wouldn’t you agree that...
I agree, but...
As tourism develops, people are becoming increasingly concerned about the environment. Here in our city, there is a heated discussion about whether a hotel should be built at White Beach. The owner of the company thinks the hotel would attract more tourists, which will 1 ______________________________ and 2 ____________________. However, the local people worry that building the hotel is 3 ________________ and will 4 _________________, in particular the turtles which lay their eggs on White Beach. But they also admit that building the hotel will 5 __________________ for people living in the area. Even though the owner of the company guarantees that the design will be in harmony with its beautiful surroundings, the local people are still concerned that the hotel may 6 ____________________. Increased tourist numbers will also mean more cars and aeroplanes, which in turn means 7 ____________________.
Activity 7
Complete the passage with the expressions in the box.
create opportunities for new businesses
help the local economy
not eco-friendly
disturb the wildlife
provide more jobs
use up natural resources
higher carbon emissions
Now listen to the passage and check your answers.
Boracay White Beach
Do Activity 9 on Page 89.
Complete the boxes with the expressions in Activity 8.
attracting more tourists
creating opportunities for new businesses
helping the local economy
providing more jobs for people living in the area
not eco-friendly
disturbing the wildlife
using up natural resources
higher carbon emissions
补充：
raising awareness of protecting local wildlife
providing locals with a chance to experience other cultures
…
补充：
polluting inshore seawater
destroying local ecological environment
…
Now think about more advantages and disadvantages
of building the hotel at White Beach
Work in pairs.
Role-play a discussion to reach an agreement that is satisfactory for everyday.
Use the expressions in this section.
student A
Activity 10
You are a hotel operator who wants to build a hotel on some forested land.
student B
You are a conservationist who wants to protect the wildlife there.
Now think about how well you approached the problem from different perspectives and reached an agreement.
Exercise
1．—I’m sure Andrew will win first prize in the final.
— I think so. He________ for it for months.
A．prepared B．has been preparing C．prepares D．had prepared
2．Joseph _____ to evening classes since last month, but he still can’t say “What’s your name ” in Russian.
A．has been going B．went C．goes D．has gone
3．I’m sure you’ll do well in the exam because you ________ so hard this year.
A．studied B．had studied C．have been studying D．had been studying
Exercise
4．The debate between homework or no homework ________ on in American schools for years and no one has come up with a solution yet.
A．is going B．has been going C．was going D．had gone
5．Over the last three months, my roommate Lin Tao________ in the library every night.
A．worked B．had been working C．has been working D．is working
6．—Where is Mother
—She is in the kitchen. She ______the housework all morning.
A．does B．has been doing C．has done D．was doing
Exercise
7．The media________ the trade-unions for years and the unions have called for a change.
A．has been attacking B．has been attacked C．had attacked D．had been attacked
8．You know, I ______ for a job for three months, but I haven’t had any luck.
A．have been looking B．have looked C．had been looking D．had looked
9．The children are dirty from head to foot because they ________ in the mud all morning.
A．play B．had played C．will play D．have been playing
10．— Shall we take a break We ________ for a whole morning.
— I’m sorry we can‘t. We are on a tight schedule.
A．was working B．have been working C．worked D．had work
Review the language points and complete the exercises.
Homework
See you next class!
Unit 6
Nurturing nature
Look at the following sentences:
What can you find
have/has been +动词的现在分词
I have been writing the letter since then.
Has he been studying hard since the new term began
I have been meeting her at the library.
I have been looking forward to seeing my family.
Sorry, I'm late. Have you been waiting long
Look at the sentences from the reading passage and answer the question.
Which of these statements are true about sentence (a)
1) Wild animals started using these passages in the past.
2) Wild animals used these passages only once.
3) Wild animals still use these passages now.
What is the difference between the expressions in bold in sentences (a) and (b)
They are different in form and meaning. For sentence (a) the form is "have been doing", while for sentence (b) the form is "have done" In meaning, the bold part in sentence (a) means the action is continuous from the past; while the bold part in sentence (b) means the action happened once in the past.
√
√
构成：
由“have/has been +动词的现在分词”构成，第三人称单数用 has，其他人称用 have。
用法：
①表示从过去开始一直持续到现在的动作，该动作在说话时仍在继续进行，
可能还要继续下去，也可能刚刚结束。
②带有某种感彩
③不能用现在完成进行时的情况
区分：
现在完成时和现在完成进行时的区别
Present perfect continuous ——现在完成进行时
表示从过去开始一直持续到现在的动作，该动作在说话时仍在继续进行，可能还要继续下去，也可能刚刚结束。
这个时态常和 recently、all day、this week 等状语或 for、since 引导的时间状语从句连用。例如：
We have been studying for nearly 3 hours.
我们已经学了近3个小时了。
He has been studying traditional Chinese medicine since1999.
他从1999年开始学习中医。
用法
用法
带有某种感彩：
Recently Li Hua has been helping his mother do housework regularly.
最近李华经常帮他妈妈做家务。 (赞许的感彩)
I'm glad the lecture is finished! I've been sitting for three hours.
很高兴演讲终于结束了，我已经整整坐了三个小时了。 (强调坐的时间长)
用法
不能用现在完成进行时的情况：
①某些不能用于进行时的动词同样也不能用于现在完成进行时，只能用现在完成时。如：see、hear、know、have、like、be 等。
他已经感冒两个星期了。
He has been having a cold for two weeks.
He has had a cold for two weeks.
②不具有延续意义的动词，如:finish、come、go、marry等不能用于现在完成进行时。
(×)
(√)
区分
现在完成时和现在完成进行时的区别：
①现在完成时强调动作已经完成，但对现在有影响或其结果现在仍然存在；而现在完成进行时着意于动作本身，是一种持续的(但不一定是结束了的)活动。
I have written a book on UFO. It was finished last year.
我写了一本关于 UFO的书，这本书是去年写完的。
I have been writing a book on UFO. I should be able to finish it early next year.
我一直在写一本关于 UFO的书，我应该在明年年初就能写完。
区分
现在完成时和现在完成进行时的区别：
②现在完成时陈述事实；而现在完成进行时则强调动作在不久以前持续进行的情景,并带有感彩。
My father has lost his keys.
我父亲把钥匙丢了。(陈述事实)
My father has always been losing his keys.
我父亲老是弄丢自己的钥匙。(含责怪或无奈之意)
区分
现在完成时和现在完成进行时的区别：
③ 现在完成时既可用于状态性动词，也可用于动作性动词；
现在完成进行时通常只用于动作性动词。
I have had this computer for 10 years, with which I have written plenty of articles.
我已拥有这台电脑10年之久了，并用它写了大量的文章。
I have been writing articles with this computer for 10 years.
10年来我一直用这台电脑写文章。
区分
现在完成时和现在完成进行时的区别：
④有少数动词(如：work、study、live teach、stay 等)在表示持续一段时间时用这两种时态含义差不多，只是用现在完成进行时更强调动作的持续性。
—How long have you worked/been working here
你在这儿工作多长时间了？
—Ten years.
10年了。
Exercise
(1) You should go to bed. You ___________________ (watch) TV for 5 hours.
(2) I _________________ (write) letters since 6 o'clock.
(3) I _________________ (look) for him everywhere. Where can he be
have been watching
have been writing
have been looking
Exercise
(4) 三年以来，我们一直学英语。
________________________________ since three years ago.
(5) 近来他老是说厌倦了自己的工作。
______________________ he is tired of his work recently.
(6) 在过去的几个月，西南地区的人们一直遭受严重旱灾的影响。
People in the southwestern areas _________________________
_______________ in the past few months.
We have been studying English
He has been saying
have been suffering from
serious drought
Activity 2
Complete the passage with the correct form of the verbs in brackets.
I pull off the headset and I’m back in my living room. Thank goodness! I 5 __________________ (give) the latest virtual reality headset and, for the last twenty minutes, I 6 _________________ (use) it to explore the Amazon. This is an amazing experience and a reminder of how many species there are in the rain forest. We must do all we can to protect it.
I 1 ________________ (hear) a strange sound for a while. It’s a deep, loud roar, like a lion’s. But there aren’t any lions here... Or are there Soon I see what 2 _______________ (make) the noise: a howler monkey. Now I feel less worried. Realising that something 3_____________ (move) on my shoulder, I turn my head to look at it. Oh no! It’s a giant spider! I brush it off and it runs under some leaves. I try to bat away the huge insects, which 4 ________________ (fly) around my head in a black cloud for quite a while.
roar n. 咆哮(声);吼叫
howler monkey 吼猴
虚拟现实耳机/视图器
have been hearing
has been making
is moving
have been flying
have been given
have been using
Vocabulary
1. disturb
disturbing
disturbed
disturbance
a disturbing piece of news
a disturbing increase in the crime rate
练习：There was something about him she found __________ (disturb).
disturbing
adj. 使人烦恼的，令人不安的
adj. 不安的，烦恼的
n. 骚动；动乱；打扰；干扰
一则令人不安的消息
令人不安的犯罪率增长
Vocabulary
2. operator
operate
operation
a computer/machine operator
operate on sb. ( for...)
operate the machine
in operation
come into operation
put sth. into operation
练习：We will have to operate _______ his eyes.
v. 操作；经营；运转；动手术
n. 操作；手术
电脑/机器操作员
给某人动手术(以治疗……)
操作机器
工作中；使用中；有效
开始工作；开始生效
实施；使……运转；启用
on
Vocabulary
3. compromise
compromise
compromise on sth.
compromise with sb.
reach a compromise
make a compromise/compromises
练习：We managed to compromise _________ a price for the car.
on
v. 折中；妥协
就某事让步
与某人妥协
达成妥协
作出让步
Vocabulary
4. guarantee
guarantee to do sth.
guarantee that...
guarantee sth. for+时间
be guaranteed to do sth.
under guarantee
give sb. a guarantee
练习：That kind of behaviour is guaranteed ___________ (make) him angry.
to make
保证做某事
保证……
某物的保修期为……
必定会做某事
在保修期内
给/向某人保证
Vocabulary
5. in harmony with
harmonious
out of harmony with
eg. The violin was out of harmony with the rest of the instruments.
小提琴拉得与其他乐器不协调。
练习：We must ensure that tourism develops _______________ (与……和谐) the environment.
adj. 融洽的，和谐的
与……不协调
in harmony with
Vocabulary
6. in turn
in one's turn
by turns
take turns to do sth. /in doing sth.
It is sb's turn to do sth.
练习：When it was ___________ (轮到我), I was too excited to speak.
轮到某人
轮流；依次
轮流做某事
轮到某人做某事
in my turn
Activity 3
Look at the charts and make sentences using the present perfect continuous tense.
① The number of trees has been increasing in the last 20 years.
② Desert areas have been reducing in the last 20 years.
③ Butterfly population has been increasing/has been becoming larger and larger in the last 20 years.
Activity 4
Work in pairs.
Talk about how the environment where you live has changed.
Use the present perfect continuous tense where appropriate.
Tourism and the environment.
Read the short passage.
Ecotourism is a type of tourism that conserves the environment. It encourages people to be responsible travellers and involves educating them about the natural world. For countries such as Costa Rica, Kenya and Nepal, ecotourism is an important part of the economy. Some ecotourism holidays involve voluntary work, such as planting trees or counting endangered animals.
生态旅游
How do we put into practice ecotourism when we travel
“Only if we understand, will we care. Only if we care, will we help. Only if we help, shall all be saved.”
——Jane Goodall
Research Ecotourism Locations
Visit a Wildlife Refuge
Use Green Transportation Methods
Learn Local Customs
...
Activity 5
Listen to the conversation and choose the places mentioned.
Australia
Thailand
South Africa
Nepal
a
b
c
d
Activity 6
Listen again and complete the notes.
The first option
Rachel wants to
1 ____________________ and plant trees.
also 2 _________ rhinos, which will help protect them.
eat local food.
Rachel's dad thinks
he can eat that kind of food at home.
the activities sound like 3 _____________.
hike in the mountains
count
hard work
The second option
Rachel wants to
look after 4 ______________.
sleep in a treehouse.
Rachel's dad wants to
5 __________________ and read a book.
Compromise
They will stay in 6 _______________________.
Rachel can do ecotourism activities while her dad does what he likes.
They will go on 7 _________________________ of the jungle.
elephants
lie on the beach
a nice hotel
a one-day bike tour
Activity 7
Complete the boxes with the expressions from the conversation.
Persuading others
Compromising
Let’s find a compromise.
Let’s meet in the middle.
As a compromise, ...
The fact is that...
Wouldn’t you agree that...
I agree, but...
As tourism develops, people are becoming increasingly concerned about the environment. Here in our city, there is a heated discussion about whether a hotel should be built at White Beach. The owner of the company thinks the hotel would attract more tourists, which will 1 ______________________________ and 2 ____________________. However, the local people worry that building the hotel is 3 ________________ and will 4 _________________, in particular the turtles which lay their eggs on White Beach. But they also admit that building the hotel will 5 __________________ for people living in the area. Even though the owner of the company guarantees that the design will be in harmony with its beautiful surroundings, the local people are still concerned that the hotel may 6 ____________________. Increased tourist numbers will also mean more cars and aeroplanes, which in turn means 7 ____________________.
Activity 7
Complete the passage with the expressions in the box.
create opportunities for new businesses
help the local economy
not eco-friendly
disturb the wildlife
provide more jobs
use up natural resources
higher carbon emissions
Now listen to the passage and check your answers.
Boracay White Beach
Do Activity 9 on Page 89.
Complete the boxes with the expressions in Activity 8.
attracting more tourists
creating opportunities for new businesses
helping the local economy
providing more jobs for people living in the area
not eco-friendly
disturbing the wildlife
using up natural resources
higher carbon emissions
补充：
raising awareness of protecting local wildlife
providing locals with a chance to experience other cultures
…
补充：
polluting inshore seawater
destroying local ecological environment
…
Now think about more advantages and disadvantages
of building the hotel at White Beach
Work in pairs.
Role-play a discussion to reach an agreement that is satisfactory for everyday.
Use the expressions in this section.
student A
Activity 10
You are a hotel operator who wants to build a hotel on some forested land.
student B
You are a conservationist who wants to protect the wildlife there.
Now think about how well you approached the problem from different perspectives and reached an agreement.
Exercise
1．—I’m sure Andrew will win first prize in the final.
— I think so. He________ for it for months.
A．prepared B．has been preparing C．prepares D．had prepared
2．Joseph _____ to evening classes since last month, but he still can’t say “What’s your name ” in Russian.
A．has been going B．went C．goes D．has gone
3．I’m sure you’ll do well in the exam because you ________ so hard this year.
A．studied B．had studied C．have been studying D．had been studying
Exercise
4．The debate between homework or no homework ________ on in American schools for years and no one has come up with a solution yet.
A．is going B．has been going C．was going D．had gone
5．Over the last three months, my roommate Lin Tao________ in the library every night.
A．worked B．had been working C．has been working D．is working
6．—Where is Mother
—She is in the kitchen. She ______the housework all morning.
A．does B．has been doing C．has done D．was doing
Exercise
7．The media________ the trade-unions for years and the unions have called for a change.
A．has been attacking B．has been attacked C．had attacked D．had been attacked
8．You know, I ______ for a job for three months, but I haven’t had any luck.
A．have been looking B．have looked C．had been looking D．had looked
9．The children are dirty from head to foot because they ________ in the mud all morning.
A．play B．had played C．will play D．have been playing
10．— Shall we take a break We ________ for a whole morning.
— I’m sorry we can‘t. We are on a tight schedule.
A．was working B．have been working C．worked D．had work
Review the language points and complete the exercises.
Homework
See you next class!