Play the tape for the students to listen to.Try asking them to answer the twoquestions at the end of the first time.If most of them can answer the questions properly，you can let the students repeat the dialogue sentence by sentence atthe second time.
II.Answering questionsIII.Go through the dialogueAsk the students to underline the expressions of certainty and uncertainty，write them on the blackboard or display them on the screen.Ask，“What do you think the function of these expressions？And when shall we use them？”
“Is there any difference？”
The students will definitely say“Yes”。Encourage them to tell which expressions show certainty and which show uncertainty.Then ask，“Can you give some more such similar expressions to express certainty and uncertainty？”
Put down what the students say or remind them to remember some and put them down on the blackboard.The students should copy the in their textbooks.
a.the expressions of certainty：I"m sure…
The expressions of uncertainty：I"m not sure
I doubt if…
Perhaps…
Maybe…
b.How did you find the talk this morning？
How did you like？/What did you think of？/What was the talk like…？
IV.Practice（group work）
Let the students practice the dialogue in groups of two or four while the teacher walks among the students in case there are some questions and problems to answer and settle.
Step3 Practice（Part 2&3 on Page 1）
These two exercises are easy enough for the students to finish in a short time。The teacher should remind and encourage them to make as many proper sentencesas possible.e.g.
1（I"m sure）＋a/b/c/d/e/f/gStep 4 Workbook（Ex.3，Page 73）
Homework：
1.Ex，2，P73
2.Learn the dialogue in Lesson 1 by heart.
（For some students whose English is really poor，maybe reading fluently is enough.）
教学设计
Unit 1 Lesson 2
Step 1.Revision
1.Check the exercises on Page 73
2.Check the recitation/reading aloud of the dialogue.
Step 2.Reading
I.Reading comprehension（Give Ss 10 minutes or so to read the text quickly and then do the reading comprehension exercises.）
Unit 1 Lesson 2
MADAME CURIE（！）
课文阅读理解检测题
1．The text is mainly about Madame Curie"s。
A.life，hard work and achievementsB.college life in ParisC.talent（天才）for physicsD.cooperation（合作）with her husband2.The greatest contribution（贡献）Madame Curie made to the word is the discovery of.
A.uranium B.radiumC.poloniumD.silicon3.Marie became interested in physics.
A.before she went to universityB.after she graduated from universityC.before she graduated from universityD.after she went to university4.From this text you can infer that life was for Marie when she studied in Paris.
A.hard and meaningfulB.easy and colorfulC.hard and tiresomeD.Easy and interesting5.Marie began her research work after she。
A.graduated from universityB.got another degree in mathematicsC.got married
D.gave birth to her first child6.The radioactive nature of uranium was first discovered by.
A.Marie B.Mr.Curie C.another scientist D.Mr.And Mr.Curie7.Which mineral is the most radioactive？
A.Polonium B.UraniumC.RadiumD.Silicon
8.When did Mr.and Mrs.Curie begin to do research work together？
A.After they got married.
B.After Mrs.Curie got her degree in mathematics.
C.After Mrs.Curie found poloniumD.After Mr.Curie got a job.
9.What is the meaning of the word“share”in the text？
A.Have free time.
B.Have something in common.
C.Study.
D.Research.
10.The second paragraph shows Marie"s.
A.determination to succeedB.belief in her own abilityC.devotion to her research workD.understanding of the importance of science（Key：1.A 2.B 3.A 4.A 5.C 6.C 7.C 8.C 9.B 10.B）
教学设计
Unit 1 Lesson 3（略）
set off：出发（vi）；引起，引爆/引发（vt）
e.g.
1.We"d better set off at 8 tomorrow morning.
2.A slight touch will set the bomb off.
3.Tom"s speech set off a wave of anger.
set out与set off用法相似时，意为“出发，动身”，另外，set out to do，set aboutdoing意为“着手去做。……”
Unit 1 Lesson 3
MADAME CURIE（2）
课文阅读理解检测题
1.Radium may not do serious damage to.
A.people"s health B.animal"s lifeC.plants D.metal things2.Which can be used to cure（治愈）human beings"disease？
A.Polonium B.RadiumC.Uranium D.Silicon3.The verb phrase“set off”in the text means to cause the bomb to。
A.start B.burstC.balance D.make4.In which countries were two Radium Institutes set up？
A.Poland and America B.France and AmericaC.France and England D.Poland and France5.Which characteristic（性格）belonged to Mrs.Curie？
A.Devotion B.Impatience C.Carelessness D.Selfishness（Key1.D 2.B 3.B 4.d 5.A）
