doubt的用法.doc

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doubt是个常用词，也是历年高考经常考查的词语之一。doubt既可用作动词，也可用作名词。现将其用法归纳如下。 　　
　　一、doubt用作动词
1. doubt+名词或代词。例如：
I doubt his word.
我怀疑他的话。
They doubted him before.
他们以前曾经怀疑过他。
2. doubt+宾语从句 　　
　（1）在否定句和疑问句中，doubt后面接that引导的宾语从句。例如： 　　
I don’t doubt that he can finish the task on time.
我相信他能按时完成任务。 　　
Do you doubt that she will succeed?
你怀疑她会成功吗？
　（2）在肯定句中，doubt后面一般接whether或if引导的宾语从句。例如： 　　
I doubt whether they can swim across the river.
我怀疑他们能否游过河去。 　　
He doubts if she will keep her word.
他不敢肯定她是否会遵守诺言。
　　注意：在肯定句中，doubt后面也可以接that引导的宾语从句，但表示疑虑较大或“不相信”。例如： 　　
We doubt that they can complete the work ahead of time.
我们不相信他们能提前完成这项工作。
I doubt that he will come.
我看他未必会来。

　　二、doubt用作名词 　　
1. doubt常与about/of/as to/on等介词连用。例如： 　　
There is no doubt about it.
此事无可怀疑。 　　
I have no doubt of his ability.
对于他的能力我毫不怀疑。
She has her doubts as to this being true.
她怀疑这事是否真实。
No one has any doubt on this point.
这一点没有人会怀疑。 　　
2. doubt后面接同位语从句 　　
（1）doubt用在否定句中，后面接that引导的同位语从句。例如： 　　
I have no doubt that he will succeed.
我相信他会成功的。 　　
There is no doubt that they will agree with you on this matter.
毫无疑问，他们在这件事上会同意你的意见的。
　（2）doubt用在肯定句中，后面接whether引导的同位语从句。注意不可以用if替换whether。例如：
He had his doubts whether they would give him another chance to have a try.
他不能肯定他们是否会再给他一次机会试一试。
There is some doubt whether their football team will win the match.
他们的足球队会不会赢得这场比赛还不能肯定。
3. 由doubt组成的一些短语 　　
（1）in doubt怀疑；拿不定主意。例如： 　　
We are in doubt (about) what to do next.
我们不知道下一步要做什么。 　　
When in doubt about the meaning of a word, consult the dictionary.
当你对一个词的意义没有把握时，就查一下词典。 　　
（2）no / without / beyond doubt无疑地；必定；当然。例如： 　　
It is no doubt difficult.
这无疑是困难的。 　　
No doubt he didn’t mean to hurt you.
他肯定不是有意伤害你的。 　　
Without doubt this is the best.
无可置疑，这是最好的。 　　
Beyond doubt he will give you some advice on your study.
毫无疑问，他会给你的学习作一些指导的。 　　
（3）make no doubt of 对……毫不怀疑。例如： 　　
We make no doubt of his sincerity.
我们对他的诚意毫不怀疑。 　　
She made no doubt of what he had said.
她对他所说的话毫不怀疑。 　　
（4）throw / cast doubt on使人对……产生怀疑。例如：
Galileo’s experiments threw doubt on Aristotle’s theory of falling objects.
伽利略的实验使人们对亚里士多德的落体理论产生了怀疑。 　　
What he had done cast doubt on his honesty.
他的所作所为使人们对他的诚实产生了怀疑。
Unit 10 By the time I got outside, the bus had already left．

The First Period
Ⅰ． Teaching Aims and Demands
1． Knowledge Objects
（1） Key Vocabulary oversleep
（2） Target Language What happened?
I overslept． And by the time I got up, my brother had already gotten in the shower．
2． Ability Objects
（1） Teach the students to use the new words．
（2） Train the students to narrate past events with the Past Perfect Tense．
（3） Train the students’ listening and speaking skills with the target language．
3． Moral Object
It’s a good habit to go to bed early in the evening and get up early in the morning． So you’ll never be in a hurry in the morning．
Ⅱ． Teaching Key Points
1． Key Vocabulary oversleep
2． Target Language Narrate past events with the Past Perfect Tense
Ⅲ． Teaching Difficult Points
1． Train the students to narrate past events with the Past Perfect Tense．
2． Train the students to understand the target language in spoken conversation．
Ⅳ． Teaching Methods
1． Thinking of examples from the students’ real lives．
2． Making sentences by looking at the pictures．
Ⅴ． Teaching Procedures
Step I Revision
1． Ask some questions like this: What volunteer work would you like to do?
Help the students to answer, I’d like to…/I love to…/I hope to…
2． Practice the dialogue in Activity 3c on page 62 again．
3． Check the students’ homework by asking some students to read their sentences with the phrasal verbs． Then ask the students to hand in their homework．
Step Ⅱ 1a
First write by the time on the blackboard． and tell the class the meaning of it．
Say this sentence to the class: By the time the teacher came in, the students had begun reading English．
Tell them to note the structure "had begun" in this sentence． Begun is the past participle of begin． Explain what is the past participle form of a verb for the students． Tell them it is as the same as the past form for a regular verb． And they have to remember the irregular verbs’ participles one by one．
Write By the time I came back…on the blackboard．
Say to the class, By the time I came in． What had happened?
Help one student to answer like this, By the time the teacher came in, Don had written his name on the blackboard．
Then get more students to answer differently,
Read the instructions to the students and read these questions to the class as well．
What do you usually do in, the morning before school? Do you like morning?
Why or why not?
Choose one good student to answer them by saying something he or she usually does in the morning．21*cnjy*com
Then have the whole class practice in pairs． Ask each other the questions．
After they finish talking, ask one or two pairs to say their conversations to the class． Correct the mistakes they may make with the other students．
Call the students’ attention to the pictures in Activity la．
Then tell students to talk about the pictures in groups of four． Move around the classroom, listening to students and offering help． Make sure that they talk in English．
After they all finish talking, ask different groups to tell the class about the pictures．
Step Ⅲ 1b
Ask the students to read the instructions together． Have them look at the two columns, A and B ,in the chart． Point out the sample answer． Read the two parts of the sentence．
Then go over the other unconnected parts of sentences, too．
Play the recording for the first time．
Students only listen． Then play it a second time． Let students match two parts of each sentence． Check the answers by asking some students to tell their answers．
Make sure that all of them have got the correct answers by listening． Say congratulations to the students who get the answers correctly by guessing．
Step Ⅳ 1c
First play the recording in Activity 1b again and let the students read after it． Do it at least twice．
Then read the instructions together with the whole class．
You will make conversations in pairs． Each of you will have to take turns being Tina． Look at the pictures in Activity la to help you． Tell your partner what happened to you this morning． Ask a pair to read the example to the class before they begirt
Have the students work in pairs． Move around the room offering language support as needed．
After they all finish talking, ask some pairs to say their conversations to the class．
Step Ⅴ Summary
Step Ⅵ Homework
1． Write out the story of Tina, Note to use the target language．
2． Revise when to use the Past Perfect Tense and the verb structure of it．

The Second Period
Ⅰ． Teaching Aims and Demands
1． Knowledge Objects
1） Target Language
By the time she got to class, the teacher had already started teaching．
When she got to school, she realized she had left her backpack at home．
When I got home, I realized I had left my keys in the backpack．
（2）The Three Forms of the verbs．
2． Ability Objects
（1） Train the students’ listening skill．
（2） Train the students’ writing skill with the target language．www.21-cn-
（3） Train the students’ speaking skill．
（4） Train the students to use the three forms of the verbs．【来源：21cnj*y.co*m】
Ⅱ． Teaching Key Points
1． Listening practice with the target language．
2． Use the correct verb forms to fill in the blanks by listening．
3． Make sentences using the Past Perfect Tense．
4． The three forms of the verbs．
Ⅲ． Teaching Difficult Points
1． Write an ending for the story in Activity 2c．
2． The three verb forms in Grammar Focus．
Ⅳ．Teaching Procedures
Step I Revision
1． Revise what happened to Tina in the morning by asking one or two students to tell the stroy on page 68．　　21*cnjy*com
2． Ask students to check each other’s homework in pairs, pointing out all the mistakes they might have made．
3． Revise the Past Perfect Tense by asking the children when to use it and what its verb structure is．
Step Ⅱ 2a
Read the instructions to the class． Be sure that all of them know what to do．
Call the students’ attention to the four pictures． Get them to guess the correct order of the pictures first． The first one is given as a sample． Ask one or two children to tell their stories by describing the pictures according to their own order．
Play the recording the first time, students only listen． Play the recording again and ask the children to number each picture．
Check the answers with the class and see who have ever got the correct answers without listening．
Step Ⅲ 2b
Ask the students to read the instructions together． Point out the blanks in the sentences and the verbs in the brackets．
Let the students fill in the blanks with the correct forms individually．
Move around the classroom collecting the common mistakes they may make．
After they all finish writing, tell them to get ready to listen to the conversation and check their answers．
Play the recording． Students listen and check their answers． Correct the answers by asking seven different students to say theirs to the class．
Step Ⅳ 2c
Ask the whole class to read the instructions together．
We have a new task now． We know Tina was late for class． What do you think happened after Tina was late for class?Work with a partner． Make up an ending for the story by continuing it． The beginning has been given．
Get students to discuss in pairs． Complete the ending． Make sure they are talking in English． Move around the classroom, offering language support if needed． After ten minutes, ask students to stop discussing． Get some pairs of students to tell the class how they think the story ended And let the whole class decide whose ending is the best． Tell each pair to write down their ending, or do it after class if time is not enough．
Step Ⅴ Grammar Focus
Call students’ attention to the sentences on the left． Ask four different students to read the four sentences and point out where had plus a past participle is used． Write the sentences on the blackboard．
Ask the students to make sentences correctly using each form of the verbs in the box．
Check the answers．
Step Ⅵ Homework
1． Write down the ending of Tina’s story．
2． Make sentences using each form of the verbs below:
leave, walk, start, oversleep, ring, be
3． Review the Grammar Focus．

The Third Period
Ⅰ． Teaching Aims and Demands
1． Knowledge Objects
（1） Key Vocabulary
bell, ring, go off, rush, run off, on time, give sb． a ride, lock, break down
（2） Target Language
By the time I got there, the bus had already left．
By the time I woke up, my father had already gone into the bathroom．
2． Ability Objects
Train the students’ reading skill with target language．
Train the students’ speaking skill with target language．
Ⅱ． Teaching Key Points
1． Guide the students to read the article in activity 3a．
2． Help the students do the oral practice with the target language．21世纪教育网版权所有
Ⅲ． Teaching Difficult Points
1． Help improve the students’ reading skill by Activity 3a．
2． Help the students describe what has happened to them with the target language．
Ⅳ． Teaching Procedures
Step Ⅰ Revision
1． Revise what happened to Tina by asking several students to tell the story．
2． Revise the three forms of the verbs in Grammar Focus by asking four students to write them out on the blackboard．
3． Check homework by asking one or two to read their own endings of the stroy．
4． Check homework by asking some students to read the sentences which they made．
Step Ⅱ 3a
Ask the whole class to read the instructions together． There is an article in Activity 3a． Your task is to read the story and write the events in the correct order．
Have a look at the sample answer on the right of the article before you start． Then let the children complete the work on their own． After a while, ask some students to report their answers to the class． Write the events on the blackboard as they report, putting the events in the correct order．
After checking the answers, tell students to read the article again more carefully．
Tell them to find out the words or sentences which they can’t understand this time．
A few minutes later, let the students ask questions on the words and sentences which they can’t understand． Do some explanation and make sure that the students make everything clear about the article．
Then ask the students to read the article aloud． Move around the classroom while they are reading, offering help as needed．
Next ask students to pick out the sentences with the Past Perfect Tense． Tell them to underline them and come up with the reason to use the tence．
Ask two students to read their answers and explain the sentences．www-2-1-cnjy-com
Step Ⅲ 3b
Call the students’ attention to the photo of the woman sleeping． The girl is sleeping． She may oversleep． How about you?
Have you ever overslept?
Get a students to answer the question simply, such as Yes, I have． /No, I haven’t．
Then ask one student to read the instructions to the class．
Explain that describe the circumstances means to tell when, where and how the things happened．
Ask one student who has ever overslept to answer the first question and describe the circumstance． Help him or her use the Past Perfect Tense to describe the circumstance．
Then ask students to read the questions and write their answers in their exercise books． Tell them that they have to describe the circumstances if their answers are Yes, and there should be at least one sentence with the Past Perfect Tense in each description． Move around the classroom providing sentences to the ones who need． Ask several students to share their stories with the class． Correct any mistakes they may make． Let them check the answers in pairs．
Step Ⅳ 3c
Ask the whole class to read the instructions together． Then call the students’ attention to the sample conversation on the right． Ask a pair of the students to read the conversation to the class． Please ask your partner the questions in Activity 3b． Ask more questions if he or she says "Yes"．
Ask the students to work in pairs． Encourage them to ask as many questions as they can． As they work, move around the room offering help and answering questions as needed． Ask some pairs to say their conversations to the class．
Step Ⅵ homework
1． Write the answers to the questions in Activity 3b．
2． Write a conversation in Activity 3c．

The Fourth Period
I． Teaching Aims and Demands
1． Knowledge Objects
（1） Key Vocabulary
costume, show up, exhausted, embarrassed, empty, fool, April Fool’s Day, go off, stay up
（2）Target Language
When I got there, I found that he had fooled me．
After an hour, the other kids showld up, and I realized that my brother had fooled me．
By the time I got to match class, I was exhausted because I had staye