外研版高中英语必修1--Module5教案VIP

1、 step 2 pre-readingbackground knowledge of a scientific experiment.(actitivy1 on p44)1.fast-reading1)potassium, calcium and sodium.2)it burns to form an oxide.t: well, from passage a we can see how interesting the experiment about the reaction of metals is! but do youhow to describe a scientific 1.f

2、ast-readingread through passage b silently to catch its main idea. then fill in the table on p45.explain some difficult language points to the students after checking the answers.(ref: notes to the text.)【*in order to lead the students to read the text very carefully, the following task-based questi

3、ons can besigned to ask them to answer:】can you guess the meaning of the word apparatus through the context? have you known all of the“”apparatuses of this experiment?in the second part of the experiment, why must you boil the water? and then why do you add some oil to thewater?test tubeappendix: no

4、tes to the textin order 有序的（地）out of order 无序的（地） eg:you must make sure we can get there on time.5.add some oil to the water. this will keep air out of the water.1）add to 把加到增加火上浇油使不进入eg: keep the dog out of the room. 不要让狗进入房间。hall-fill vt. 把填/装半满air-free adj.period twoteaching content:1.lead the st

5、udents to take an active part in class;2.convert(k nv :t v. 使转变, 转变，变换) different kinds of numerals freely and proficiently with the helpof what they learn in this period.teaching procedures:step 1 greetings and revisionsuggested answers:1)the word2)the word “one”(or “a”) is missing before “hundred

6、million”.2.activity2 on p42.(fractions frk n n. 分数)ask the students to read through the numbers silently and individually. tell the students the rules of reading fractions in english.ask the students to read out the numbers aloud in this part correctly and individually.3. nine-tenths4.three-eighths;

7、3.activity3 on p42.(percentages)ask the students to turn the fractions in activity2 into percentages and try to read them out in pairs orindividually.ask the students to describe the percentages after the example.answers: 1. a quarter is the same as 25%; 2.one third is the same as 33.33r%(thirty-thr

8、ee point three threerecurring percent); 3.four-fifths is the same as 80%; 4. one tenth is the same as 10%; 5. three-quarters is thesame as 75%; 6. one half is the same as 50%; 7. two-thirds is the same as 66.66r%(sixty-six point six sixrecurring percent); 8. two-fifths is the same as 40%; 9. five-ei

9、ghths is the same as 62.5%(sixty-two point fivepercent); 10. nine-tenths is the same as 90%; 11. three-eighths is the same as 37.5%(thirty-seven point fivepercent); 12.five-sixths is the same as 83.33r%(eighty-three point three three recurring percent).【*recur rik : vi. 重现；循环recurring adj. 循环的；再发的】a

10、sk the students to ask and answer in turn in pairs; then ask some pairs to act out.【*5.activity5 on p43 can be omitted.】ask the students to read out the numbers aloud in this part correctly and individually.suggested answers:1)point five(or nought( n :t n. 零；没有)/zero point five);2)two point two five

11、;3)pointseven five(or nought/zero point seven five);4)thirty point five;5)twelve point three.【带分数的读法：整数+ 分数，中间用and 连接 eg: 2 又 1/4 two and a quarter】2.activity2 on p46.period threeteaching content:2.learn to make use of words and expressions of sequence( si:kw ns n. 序列；顺序) to make theirexperiment rep

12、ort more coherent.teaching difficult points: step 1 greetings and revision1.greet the students as usual.it is necessary for a teacher to give the ss a brief indication before listening. for this listening, the teacher cansay to the ss: we are going to listen to a dialogue that takes place in a lab.

13、a teacher helps a student do anexperiment. in this experiment, the metal magnesium burns in air. is there a change in weight when this metalburns in air? first lets guess / predict the result according to what you have learned in chemistry lesson.suggested answer:the weight of the substance will inc

14、rease,because the metal magnesium burns to form anoxide in air as we have learned in passage a.listen again to get more details and try to fill in the blanks.compare the answers and then listen one more time to check the answers.suggested answers:(the students dont have to write down,because itt dif

15、ficult to write down.)aim: to find out if theres a change in weight when magnesium burns in air.apparatus: magnesium, bunsen burner, a balance, a crucible.method: first, put the magnesium in the crucible.then put the crucible on the balance and weigh it.next,light the bunsen burner and hold the cruc

16、ible over it to heat the magnesium.finally, weigh the magnesium again. 【ref: function on p48】result: it weighs a little more than before.ask the students to read through this part silently to understand. pay special attention to the words andexpressions of sequence.first, then, next, after that, las

17、tly（2）在水中放入温度计。（2）水在沸腾过程中有大量气泡(bubble)产生。【refer to passage b】aim:1.to find out the temperature when water is boiling. 2.to find out what happens when water is boiling.apparatus:1.fill about 100g water in the beaker.2.put a thermometer in the water.1.water boils when the temperature reaches 100 centi

18、grade.2.a lot of bubbles appear during the boiling.step 6 summary and homework1.summary: summarize what they have learned in this period.2.homework: finish activity8 on p93 in workbook or the writing task after class.period fourteaching content:teaching procedures:step 1 greetings and revisionstep 2

19、 grammar1*1.present the ss the following sentences on the bb and ask them to discover what kind of degrees ofcomparison .then call the answers from the class.jack speak english as fluently as tom.this room is less beautiful than that one.answers:1.原级; 2、3、4、5、6、均为.比较级; 7.最高级.2.summarize the basic ru

20、les of the comparative structures of adjectives.(ref: grammar7 on p111)【3 forms 原级、比较级和最高级；复习初中所学内容；熟悉本模块内容】 3.finish activity1 on p43.4.finish activity2 on p43.【*形容词和副词的比较等级】原级的构成和用法1）构成：形容词和副词的原级形式是形容词和副词的原形。2）用法：当表示双方在程度、性质、特征等某方面相等时，用“as+原级 adj./adv.+as”的结构；当表示adj./adv.+as”的结构；当表示一方是另一方的若干倍时，用“倍

21、数he is as tall as jack. / i speak english as fluently as you.your bike is not as(so) new as hers.1）构成：规则变化norrow-norrower-norrowest.以 e 结尾的单音节形容词和副词后以及少数以-ble,-ple 结尾的双音节形容词和副词后，加r，st例如：以辅音加 y 结尾的形容词和少数不是形容词加 ly 构成的副词要将 y 改写为 i，再加er，est 例如：不规则变化原级比较级最高级bestleastold,oldest(最老、最旧)eldest(最年长)farest（最远的

22、），farfarter(较远的),注意辨析 few-fewer-fewest 和 little-less-least 的差别: 前者是规则变化，后者是不规则变化；前者用来修饰可数名词，后者用来修饰不可数名词。2）用法：比较级的用法 表示一个方面随另一个方面的程度而变化时，用“the +比较级（+主语+谓语），the +比较级（+主语+谓语）”的结构。例如：表示倍数的比较级有如下几种句型：在比较级的前面可以加上如下一些表示程度的状语，但要注意其含义的差别。a)any 加比较级, 用于疑问句，表示疑问程度，译为“-一些”，“-一点”。例如：are you feeling any better?b)

23、no/not(any)/hardly any 加比较级, 用于否定句，表示否定程度，译为“并不-”。例如：some grow no higher than your ankles.c)a bit, a little, slightly 加比较级, 用于肯定句，表示“稍微，一点（些）”。例如：may i stay here a little longer?d)many, (very)much, a lot, lots of, greatly, (by)far, rather, a good(great) deal等加比较级，用于肯定句， 表示“-得多”。例如：the people here ar

24、e a great deal richer now than before.附 by far 通常用于强调最高级。用于比较级时，一般放在比较级的后面，如在前面，应在二者中间加“the”。例如：he is taller by far than his brother./ he is by far the taller of the two brothers.e)even, still 加比较级, 表示强调，译为“甚至更/还要-”。例如：he gets even stronger.最高级的用法三者或三者以上相比，表示最高程度时，用“the +最高级”的结构表示。这种句式一般常有表示比较范围的介词短

25、语。例如：zhang hua is the tallest of the three.he works (the) hardest in his class.the three gorges area is one of the most beautiful areas of china.最高级可被序数词以及 by far, by no means, much, nearly, almost, not quite, nothing like 等词 语修饰。例如：b)excellent(优秀的、极好的)，extreme（极端的），favourate(最喜爱的)，perfect（完美的）等词本身含

26、有最高级的含义，所以它们没有比较级和最高级。切忌采用双重比较应避免自我比较使用比较级时，进行比较的双方必须是互相分离、互不包含的独立概念或事物，否则比较就不合逻辑。例如：误：there are more students in this school than that school.正：there are more students in this school than in that school.连词 than 后使用代词主格和宾格有时意义不同。例如：i know you better than he.我比他更了解你most 前面加不定冠词 a/an，或者不加冠词修饰形容词时，它的意思

27、等于 very。此时， most 已失去最高级的意义。试比较：1.activity1 on p47.answers:a-1,2,3 b-2,32.activity2 on p47. answers:the hot metal is getting bigger and bigger.the magnesium is getting hotter and hotter.the sun is getting stronger and stronger during the morning.the sea is becoming warmer and warmer.step 4 pronunciat

28、ionperiod fiveteaching content:teaching important points:1.encourage the students to read the sentences accurately and fluently;2.help the students make full use of everyday english freely;3.know more about the description of science teaching in marks school;4.master and apply what they have learnt

29、in this module.teaching difficult points:teaching procedures:step 1 greetings and revision1.greet the students as usual.step 2 everyday englishfirstly, ask the students to go through the everyday english on p48 and choose the correct meaningsindividually.then compare the answers and explain some language points.(ref:notes to the text) next replaythe recording(they are from the listening material on p46.) and ask the students to check the answers andu