人教版高中英语教案Unit Five The Power of Nature

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Unit Five The Power of Nature
The theme of this unit is disasters that are caused by nature forces. It examines how people feel in dangerous situation and the ways in which humans protect themselves from natural disasters.
What is volcano?
Imagine wearing a concrete bodysuit all of the time. After a while, you’d feel extremely hot because of the tremendous pressure you’d feel on your body. If you think about it, the mantle (地幔) wears a huge, heavy body suit that is about seventy kilometers thick, It’s not too hard to believe, then , that there is extreme pressure and heat in the mantle. The high temperature and the push and the pull forces cause some of the mantle to melt. This molten rock is known as magma (岩浆).
A volcano is a vent (排气孔) in the earth from which molten rock (magma) and gas erupt. The molten rock that erupts from the volcano (lava岩浆熔岩) forms a hill or mountain around the vent. All volcanic eruptions are not alike. Some eruptions are quiet, with lava flowing slowly from a vent. Other eruptions are very violent, with lava and other materials being hurled (抛投掷) hundreds of miles into the air. Gases from within the earth’s interior (内部的) mix with huge quantities of dust and ash and rise into air as great dark clouds that can be seen from many kilometers away. Some dark-colored lava is thin and runny, and tends to flow.
Topic: volcano, crater lakes, cyclones, floods
V ocabulary: diagram (图解图表), volcano, erupt, eruption, ash, hurricane, questionnaire (问卷调查问卷), alongside (在….旁边), equipment, appoint, database, evaluate (评估评价), wave, fountain (喷泉源泉), absolutely, suit, helmet, boot, potential, actual, candidate, bungalow (平房小屋), typhoon, thunderstorm (雷暴), precious, novelist, fog, document, rainbow, uncomfortable, balcony, unconscious, shoot, shot, tremble, sweat, anxious, anxiety, panic (惊慌), diverse (多种多样的不同的), bathe, appreciation, guarantee, burn to the ground (全部烧毁), make one’s way (摸索前进前往), glance through (匆匆看一遍), vary from….to….(由….到….不等)
Function:
Emotions 情感(joy, fear, anxiety, surprise)
I became so excited that…. I had never felt so happy as….
I’m looking forward to…. Doesn’t that look lovely!
You did a good job. Perfect!
I can’t wait….. What’s happening?
What’s happened? What’s that noise?
I’m frightened. I was trembling….
I was never so frightened…I was so anxious….
I felt very nervous. Oh, my goodness.
Where’s the…? Oh, no!
Grammar: -ing form
Teaching important and difficult points:
Get students to know about disasters that are caused by natural forces.
Have students learn some useful new words and expressions about natural disasters and let them learn effective ways to master them.
Enable students to express their emotions such as joy, fear, anxiety and surprise.
Let students get a better understanding of the grammar item: the –ing form.
Develop students’ listening, speaking, reading and writing ability.
The first period Warming-up, Pre-reading, Reading and Comprehending Knowledge and skills:
1. To know the meanings of the following words and phrases: diagram (图解图表), volcano, erupt, eruption, ash, hurricane, questionnaire (问卷调查问卷), alongside (在….旁边), equipment, appoint, database, evaluate (评估评价), wave, fountain (喷泉源泉), absolutely, suit, helmet, boot, potential, actual, candidate, bungalow (平房小屋), typhoon, thunderstorm (雷暴), precious, novelist, fog, document, rainbow, uncomfortable, balcony, unconscious, shoot, shot, tremble, sweat, anxious, anxiety, panic (惊慌), diverse (多种多样的不同的), bathe, appreciation, guarantee, burn to the ground (全部烧毁), make one’s way (摸索前进前往), glance through (匆匆看一遍), vary from….to….(由….到….不等), make an effort (努力), be covered with / by, hurricane (飓风)
2. To learn about some disasters that are caused by natural forces, how people feel in dangerous and the ways in which humans protect themselves from natural disasters.
3. To learn how the information is organized.
4. To develop the students’ reading ability by skimming and scanning the passage.
5. To develop the students’ speaking ability by talking about natural forces.
Emotion, attitude and value:
1. To stimulate students’ love to nature.
2. To develop students’ sense of cooperative learning.
Teaching important and difficult points:
1. To enable the students to learn about the power of nature and to develop their reading ability.
2. To enable the students to talk about natural forces.
Step 1 Warming up
1. Warming up by looking and talking
(Show students some pictures and let them know about the power of nature).
Three types of volcanoes: alive volcano, dormant volcano, extinct volcano.
2. Warming up by learning something about V olcano.
Step 2 Pre-reading
1. Can you imagine climbing into a live volcano in order to measure the temperature of the boiling rock inside?
2. Encourage students to talk about volcanoes by looking and discussing.
Step 3 Reading and comprehending
1. Fast-reading:
Ask students to skim the passage so as to get the key words and general idea of each paragraph and answer the question:
What is the main idea of the text?
_____________________________________________________________.
2. Read the passage carefully and answer the following questions:
1) Why is the volcanologist’s job important?
_____________________________________________________________________.
2) Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?
_______________________________________________________________.
3) Why was it difficult for the writer to walk towards the edge of the crater?
____________________________________________________________________.
4) What does the writer find impressive about volcanoes even after studying them for many years?
___________________________________________________________________.
5) What did the author think it was when an eruption occurred?
___________________________________________________________________.
6) Why did the scientists look like spacemen?
____________________________________________________________________.
3. Ask students to scan for detailed information and discuss the following question with their partners and be prepared to report to the class.
Having learnt a little more about the work of a volcanologist, do you think it is an occupation you would enjoy? (Give some examples)
_____________________________________________________________________ ________________________________________________________________________
________________________________________________________________________ ________________________________________________________________________ ____________________________________________________________________.
Step 4 Language study
Deal with any language problem if any words or sentences students might not understand to help the students to have a better understanding of the text.
Step 5 Listening, reading aloud and underlining
Ask students to read the passage aloud to the tape and let them pay attention to the pronunciation of each word and the pause within each sentence. Tell them to pick out all the useful expressions or collocations from the passage while reading and copy them to the notebook after class as homework.
Step 6 Structure analyzing
After reading, ask students to discuss the text structure.
(This passage is a first-person account of a volcanologist’s experiences. The volcanologist described his exciting job and wrote down his first sight of an eruption. The first paragraph introduces the topic and the theme of the text. The rest of the text presents the information in chronological (编年史的) order. A feature of an account of a volcanologist’s experiences is the abundance of time expressions. The iast sentence of the report functions as a conclusion. In addition, each section begins with a topic sentence.) Step 7 Retelling
Ask students to talk about the volcanologist’s experiences in their own words. Give them some key words and expressions. Then let them try to retell the passage.
Step 8 Homework
1. Learn the useful new words and expressions in this part by heart.
2. Try to find more pictures showing natural forces and talk about them.
Step 9 Reflection after teaching
The second period: Reading
Step 1 Lead in
Step 2 Fast reading:
Read the passage An Exciting Job as quickly as you can and try to get the main idea of the passage.
What is the main idea of the passage?
A.An eruption occurred in Hawaii.
B. A volcanologist’s job is exciting.
C. A volcanologist’s exciting job and his first sight of an eruption.
D. A sight of an eruption is horrible.
Step 2 Detailed reading
1. Read the first and the second paragraphs and finish the following tasks.
1) Why is a volcanologist’s job important?
_____________________________________________________________________ _____________.
2) The writer doesn’t mind the occasional danger of his job because ________.
A. He travels to unusual places and meets interesting people from all over the world.
B. He likes the different ways of working.
C. He thinks his job the most important.
D. He is excited about danger and feels alive.
3) As a result of the volcanologist’s job, __________.
A. other scientists predict the progress of lava from the volcano.
B. many people have been warned to leave their homes.
C. the eruption causes less damage.
D. the eruption may be prevented from breaking out.
2. Read the third and the forth paragraphs and finish the following task.
1) What made the writer realize that an eruption occurred?
2) What does the writer mean by using “lucky” in the sentence “I was lucky enough to have a much closer look at it”?
A. He felt much safer on the top while the other two scientists climbed into the crater.
B. It was his first sight of an eruption.
C. It was the first time for him to watch the crater.
D. Both B and C.
3. Read the last paragraph and prepare 1-2 questions to ask your partner about it.
Step 4 Searching reading
1. Analyze the sentence.
Having collected and evaluate the information, I helped other scientists to predict where the lava from the volcano will flow next and how fast.
2. Which sentence in the test can be replaced by the following one?
The reason why I don’t mind that my job is sometimes dangerous is that danger can be exciting and make me full of energy.
3. I am still amazed at their beauty as well as their potential to cause great damage. “Potential” means: A. possibility B. opportunity
4. Translate the following sentence into Chinese.
Having studied volcanoes now for many years, I am still amazed at their beauty as well as their potential to cause great damage.
Step 5 Discussion
Having learned a little more about the work of a volcanologist, what qualities do you think a volcanologist should have? What quality do you think is the most important? And give your reason. Do you like to be a volcanologist?
Step 6 Homework
1. For more information about natural forces, you may refer to: http: // baike. Baidu. com.
2. Finish the exercises in Discovering useful words and expressions on Page 36.
The second period Language study
Knowledge and skills:
1. Get the students to learn to use the following important new words and phrases freely: absolutely, make one’s way, alongside, appoint, wave, suit, potential, actual.
2. Get students to understand and use the following important and useful sentence patterns:
1) Having collected and evaluate the information, I hope other scientists to predict where lava from the volcano will flow next and how fast.
2) I was about to go back sleep when suddenly my bedroom became as bright as day.
3) The other two climbed down into the crater to collect some lava for later study, but this being ny first experience, I stayed at the top and watched them.
Teaching important and difficult points:
1. Important new words and expressions: absolutely, make one’s way, alongside, appoint, wave, suit, potential, actual.
2. Important and useful sentence patterns:
1) be about to do …..when…..
2) the –ing form used as the adverbial in a sentence
3 Some difficult and long sentences in the text.
Step 1 Revision
1. Check the homework exercises.
2. Ask some students to say something about the power of nature.
Step 2 Reading and finding
Get students to read through Warming Up, Pre-reading, Reading, Comprehending and Learning about language to underline all the new words and useful expressions or collocations in these parts. Read them aloud and copy them down in the exercise book.
Step 3 Practice for useful words and expressions
1. Turn to Page 36. Go through the exercises in Discovering useful words and expressions with students and make sure they know what to do.
2. Give them several minutes to finish the exercises. They first do them individually, and then discuss and check them with their partners.
3. Check the answers with the whole class and explain the problems they meet where necessary.
Step 4 Language study
1. consider: 考虑, 其后接名词/ 代词/ 动名词或者从句/ 疑问词+ 不定式(to be)
consider + it + 形容词/ 名词+ 不定式短语, consider + 宾语从句.
We are considering going to Hainan for the Spring Festival.
He has never considered how to solve the problem.
Do you consider that we can finish the project ahead of time?
They considered the plan as reasonable.
I consider her to have done wonderfully in the final exam.
Micheal is considered (to be) expert in computer science.
We consider that the defendant (被告) is not guilty.
2. –logy ….学论–ist ….学家
volcanology火山学论oceanology海洋学论climatology气象学论
3. alongside: 在….旁边, 沿着….的边.
The police car pulled up alongside. 那辆警车在旁边停下。

The boat pulled up alongside the dock (码头).
4. equipment: 装备设备用具a piece of equipment 一件设备
The complete equipment of the new hospital will take a year.
把这家医院的设备配齐要花一年时间.
We never doubted his equipment for this important position.
我们对他担任这一要职的能力从未怀疑过.
相关短语: equip….for….(为了….而装备, 使….有准备), equip oneself / sb. / sth. With sth. (用….装备….), be equipped to do sth. (为了做…..而装备), be equipped with…..(配备着….).
Our laboratory is well equipped.
His work experience equipped him to deal with all kinds of people.
他的工作经验使他能与个中国移动人打交道.
The soldiers are equipped with the modern weapons.
5. appoint: 任命/ 委派/ 约会.
相关短语: appoint + n. + (as / to be) (任命某人为….), be appointed as / to be + n. (某人被任命为….), appoint sb. to do sth. (指定某人做….), appoint sb. to sp. (委派某人去某地任职), appoint time for sth. (确定…的时间), appoint a place for sth. (确定……的地点), make / have / fix an appointment with sb. (与….某人预约), keep / break an appointment (守约/ 违约), by appointment (按约定, 按事先约定的时间) They appointed him (to be) manager.
He appointed the schoolhouse as the place for the meeting. 他制定校舍为开会地点.
They made an appointment for the second day of May. 他们在五月二号有个约会.
The Director only sees students by appointment. 系主任只按规定的时间约见学生.
6. evaluate: 评估评价评估报告
estimate: 指由个人做出的主观估价. assess: 引申为通过估价以便更好地利用. Evaluate: 指使判断绝对准确, 但多用于对人物的某方面的评价, 很少用于评价某物的市场价值. value: 侧重于指一般人对某物的价值或价格所做的估计.
Let’s evaluate the evidence.
I attempted an honest evaluation of my own. 我试图如实评价我自己的一生.
The police estimated the number of demonstrators at about 5,000.
警方估计示威者的人数为五千左右.
The value of this property was assessed at one million dollars.
财产的价值估计为一百万美元.
Our research attempts to evaluate the effectiveness of the different drugs.
我们的研究试图对不同的药物的疗效进行评估.
I value this necklace at $ 5,000. 我估计这条项链的价值五千美元.
7. burn sth. To sth. 把某物烧成某种状态.
相关短语: burn to death (烧死), burn off (烧掉), burn down (建筑物等被烧毁), burn up (烧旺烧坏), burn out (烧毁累坏)
He has no place to live in because his house has been burnt to the ground.
You have burnt the toast to cinder. 你把面包片烧焦了.
Don’t leave the gas on you might burn the house down.
The house burnt down in half an hour.
All the wood has been burnt up.
The hotel was completely burnt out. 该旅馆毁于大火.
If he doesn’t stop working so hard, he will burn himself out.
8. be about to …..when…..刚要…..这时……(when = and then)
…..was (were) doing when…..正在….突然…..;
Not (hardly) had + 主语+ done….when….. 刚一(还没)…..就….;
…..was (were) on the point of doing …..when….正要….就在这时…..
They were just about to give up the question, when suddenly they found the answer.
Hardly had I fallen asleep when the telephone rang. 我刚一睡着, 电话就响了.
We were reading in the room when someone came in.
9. adapt: 改变以适应新条件; adjust: 调节调整, 是适应; fit: 多用于大小合适; suit: 多用于指“合乎要求口味性格情况”等; match: 指“大小色调形状性质等相配或相称”
You should adapt yourself to the new environment.
你应该调整自己以适应新的环境.
You can’t see through the telescope until it is adjusted to your eyes.
你把望远镜调节到适合你的目光之后, 你才能看得见.
The shoes fitted me well. 这双鞋很适合我.
No dish suits all taste. 众口难调.
A red jacket doesn’t match green trousers. 红夹克和绿裤子不搭配.
10. make one’s way (to / towards): 向某地走去make one’s way: 有出息.
She hesitated, but made her way forward. 她犹豫了一会儿, 但向前走去.
She hastily left the room, and made her way to her bed.
她迅速离开房间, 朝她床边走去.
If you want to make your way in your world, you must learn to work hard while you are still young.
你若想要有出息, 趁年轻的时候要学会发奋.
相关短语: feel one’s way (摸索前进), push one’s way (挤过), find one’s way (设法到达), go one’s way (走自己的路我行我素), fight one’s way (奋勇前进), wind one’s way
(蜿蜒前进), lose one’s way (迷路), on the way, in the way, no way (绝不), by the way
11. potential: 可能性潜力潜能; 潜在的可能的
She has acting potential, but she needs training.
The product has even more potential in export markets.
这种产品在出口市场上甚至会有更大的销售潜力。

Step 5 Using words and expressions
1. Turn to Page 70. Ask students to do exercises in Using Words and Expressions in the workbook. The following procedures may be followed.
2. 请根据课文中注释或首字母提示, 用本单元所学的词的正确形式填空.
1) How can I express my _____ (感激) for your selfish help?
2) Miss Green _______ (挥手) and carried her suitcase to her father’s car.
3) As far as I am concerned, your daughter’s ideal is ______ (绝对地) independence.
4) The girl was ______ (惊慌) when she realized she couldn’t find the way back to the hotel.
5) The story _____ (使兴奋) the little boy very much.
6) On hot days we often go _____ (洗澡) in the river.
7) It was wet, cold day and the children were b_______.
8) It’s many years since Mount Vesuvius last e______.
9) He drew f_____ animals with two heads and large wings.
10) I’m a______ to get home to open my presents.
11) They had to c______ tomorro w’s football match because of the bad weather.
12) The professor will e______ the performance of each student in his class.
13) Tommy wanted to buy this business s______, but his wife didn’t like it.
14) I feel so lucky to have a friend just like you and your friendship is most p_____ to me.
15) The traffic police demand that the truck driver stop his tuck a______ the restaurant.
(Suggested answers: appreciation; waved; absolute; panicked; excited; bathing; bored; erupted; fantastic; anxious; cancel; suit; evaluate; precious; alongside)
Step 6 Homework
1. Finish off the Workbook exercises. Do Exercise 3 in the exercise book.
2. Learn the useful new words and expressions by heart.
Reflection after class:
Period Three Grammar: the ----ing Form
Knowledge and skills:
1. Get the students to know the difference forms and usages of the present participle.
2. Enable the students to use the present participle as the adverbial correctly and
probably.
Teaching difficult and important points:
1. Get the students to master the structure and usage of the ---ing form.
2. Enable the students to learn how to use the ---ing form correctly.
Step 1 Revision
1. Check the homework exercises.
2. Dictate some new words and expressions.
Step 2 Warming up
Ask students to study the following sentences and try to summarize the structures and the meaning of the ---ing form.
1. the ---ing form as the adverbial
1) Because I was feeling tired, I went to bed early. (= Feeling tired)
2) While I was walking along the street, I met Mary. (=Walking)
3) If you turn to the left, you will find the school. (=Turning)
4) Though he knows where I live, he never comes to see me. (=Knowing)
5) I stood there, and waited for her. (=waiting)
2. having done
1) After I had finished my work, I went home. (=Having finished)
2) Because the book had been written in haste, it has some faults. (=Having been written)
(注意:1. The –ing form can be used as the adverbial in a sentence to give information about time, reason or result. 2. The structure “having done” is used to refer to an action that took place before the time expressed by the verb in the same clause.) Step 3 Summing up
语法基础:
1. V—ing形式作状语的基本用法. V—ing 形式用作状语修饰动词, 其动作执行者与句子主语之间是逻辑上的主动关系. 在句子中表示时间, 原因, 结果, 条件, 让步行为, 方式或伴随情况等. V—ing形式做时间, 原因, 条件, 让步状语时多位于句首; 做结果, 伴随,情况状语时常常位于句末, 相当于对应的状语从句.
1) Crossing / When he crossed the road, he was run over by a car. (时间)
2) Being / Since he was ill, he didn’t go to school yesterday. (原因)
3) His father died, leaving / and left him a lot of money. (结果, 相当于一个并列谓语)
4) Working / If you work hard at your lessons, you will succeed. (条件)
5) Knowing / Although they know all this, they made me pay for the damage. (让步)
6) He lay on the grass, staring / and stared at the sky for a long time. (表行为方式,伴随情况或补充说明, 相当于一个并列结构)
2. 现在分词作原因状语的标志
1) be的现在分词短语常常表示原因(构成being + adj. / n.)
Being so excited, many of us could not go to sleep that night.
Being Party members, we should take the lead in everything..
2) 含有“知道”“忘记”等心理活动的现在分词短语一般表示原因. 类似的词语有: noticing, thinking, earning, sensing等.
Not knowing her address, we couldn’t get in touch with her.
3) 由连系动词组成的分词短语(包括分词独立结构), 一般表示原因.
Feeling tired, I lay down on the grass.
4) 句子动词含有“必须”“不得不”等意思时, 作状语的现在分成(或独立结构)一般表示原因.
The rain having ruined my hat, I had to buy a new one.
3. V—ing分词的一般式的动作和后面的动作使同时进行的动作, 完成式的动作是先于后面句子动词的动作发生.
Being a student, he was interested in books.
Not having studied his lessons very hard, he failed the examinations.
4. V—ing分词的语态: 现在分词的主动是表示动作由句子主语发出, 而被动时表示主语承受该动作.
Being noticed by so many people, she felt nervous, not knowing what to do.
Not having been washed in the correct way, the coat has faded.
5. V—ing分词的否定形式, 由not / never 加V—ing分词构成
Not knowing his address, I could do nothing but stay at home and wait.
6. V—ing 形式作状语时应注意的问题
1) V—ing形式作状语于过去分词作状语的区别. (主动与进行/ 被动与完成)
The enemy fled in a panic, leaving behind a lot of dead bodies and weapons. (主动关系, 作伴随状语)
Defeated and frightened, the enemy fled in a panic. (被动和完成关系, 表示原因)
2) V—ing分词(短语)作状语时, 其逻辑主语必须与句子的主语一致. 如果不一致, 必须用独立主格结构来表示, 也就是在分词前面加上它的逻辑主语.
Comparing all the great people with each other, you’ll find that they have much in common.
Finding her car stolen, she hurried to policeman for help.
The train having gone, we had to wait another one.
3) 但有些分词短语可以作独立成分, 用来解释整个句子, 不受句子主语的限制. 常见的分词短语有: generally speaking, frankly speaking, supposing(假设), judging from(从….判断), talking of(谈到), speaking of (谈到)
Generally speaking, girls are more careful than boys.
Judging from his account, he must be from the north.
Step 4 Practice
高考题再现:
一. 单项选择
1. It rained heavily in the south, ______serious flooding in several provinces.
A. caused
B. having caused
C. causing
D. to cause
2. Lots of rescue workers were working around the clock, ______supplies to Y ushu, Qinghai province after the earthquake.
A. sending
B. to send
C. having sent
D. to have sent
3. The lawyer listened with full attention, _____to miss any point.
A. not trying
B. trying not
C. to try not
D. not to try
4. They use computers to keep the traffic ______ smoothly.
A. being run
B. run
C. to run
D. running
5. Amy joined a painting group but didn’t seem to _____, so she left.
A. show off
B. go up
C. fit in
D. come over
6. _______ their hats into the air, the fans of the winning team let out loud shouts of victory.
A. To throw
B. Thrown
C. Throwing
D. Being thrown
7. There are plenty of jobs ______in the western part of the country.
A. present
B. available
C. precious
D. convenient
8. _______that he was in great danger, Eric walked deeper into the forest.
A. Not realized
B. Not to realize
C. Not realizing
D. Not to have realized
9. The glass doors have taken place of the wooden ones at the entrance, _____ in the natural light during the day.
A. to let
B. letting
C. let
D. having let
10. My mother always gets a bit _____ if we don’t arrive when we say we will.
A. anxious
B. ashamed
C. weak
D. patient
11. The wild flowers looked like a soft orange blanket ______ the desert.
A. covering
B. covered
C. cover
D. to cover
12. The flowers ______ sweet in the botanical garden attracted the visitors to the beauty of nature.
A. to smell
B. smelling
C. smelt
D. to be smelt
13. Will those ______ the children from abroad come to the head master’s office?
A. teaching
B. teach
C. who teaches
D. who teaching
14. _______ the meeting himself gave them a great deal of encouragement.
A. The president will attend
B. The president to attend
C. The president attended
D. The president’s attending
15. ----Why did you go back to the shop?
----I left my friend ______ there.
A. waiting
B. to wait
C. wait
D. waits
16. Don’t leave the water ______ while you brush your teeth.
A. run
B. running
C. being run
D. to run
17. A coo will be immediately fired if he is found _____ in the kitchen.
A. smoke
B. smoking
C. to smoke
D. smoked
18. When ______different culture, we often pay attention to the differences without noticing the many similarities.
A. compared
B. being compared
C. comparing
D. having compared
19. More and more people are signing up for yoga classes nowadays, _____ advantage of the health and relaxation benefits.
A. taking
B. taken
C. having taken
D. having been taken
20. Daddy didn’t mind what we were doing, as long as we were together, _____fun.
A. had
B. have
C. to have
D. having
21. Oil prices have risen by 32 percent since the start of the year, ______ a record US $57 a barrel on April 4.
A. have reached
B. reaching
C. to reach
D. to be reaching
22. He came to the party without ______.
A. being invited
B. having invited
C. to be invited
D. inviting
23. _____ their hats into the air, the students of our school let out loud shouts of victory of the football team.
A. To throw
B. Thrown
C. Throwing
D. Being thrown
24. I will go to the amusement part with my parents this Saturday or Sunday, _____on the weather.
A. depending
B. depended
C. depends
D. is depending
25. ______ from heart disease for about fourteen years, my grandma had to take her medicine everywhere.
A. Suffered
B. Suffering
C. Being suffered
D. Having suffered
26. These scientists had several anxious days _____ for the results of the important experiment.
A. wait
B. to be waiting
C. waited
D. waiting
27. _____ to understand what she doesn’t, the woman makes a fool of herself.
A. Always pretended
B. Always pretending
C. having always pretended
D. Always being pretended
28._____in line for more than twenty minutes, Tracy suddenly realized that she didn’t bring the bank card.
A. To wait
B. Waiting
C. Having waited
D. To have waited
29. The author was busy writing his novel, only ______ once in a while to drink some water.
A. to stop
B. stopping
C. to have stopped
D. having stopped
30. ______ to reach her boyfriend on the cellphone, Nancy sent an e-mail instead.
A. Fail
B. Failed
C. To fail
D. Having failed
31. My auntie came to see us from the country, _____ us lots of fruits and vegetables.
A. brought
B. bringing
C. to bring
D. had brought
32 The hurricane is believed _______ more than 200 people, ______ it perhaps the most destroying one in the past ten years.
A.to have killed, making
B. killing, made
C. to kill, making
D. having killed, to make
(Suggested answers: CABDC CBCBA ABADA BBCAD BACAD DBCBD BA)
二. Complete the following sentences using the –ing form.
1. Can you imagine yourself ______ in a lonely island? (stay)
2. I can’t understand your ______ at that poor child. (laugh)
3. She didn’t mind _____ overtime. (work)
4. To make a living, he tried ________, ________, and various other things, but he had failed in all. (write, paint)
5. We are looking forward to Mary’s ______. (come)
6. She was praised for ______ the life of the child. (save)
7. She ought to be praised instead of ______. (criticize)。

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