Unit 5 What’s the highest mountain in the world
【Period 4】Section B (1a – 1d) 导学案
课型：新授课执笔：审核：上课时间：
【学习目标】
1、掌握课本中出现的重点单词和短语。
2、能够掌握课文中出现的重点句子。
3、学会表达事物之间的倍数关系。
【学习重点与考点】
1、识记并运用表达事物之间的倍数关系的词句；
2、将听力中使用的对比方法移为己用。
【课前自学指导】
一、短语翻译：
1、出生时
2、20到30千克
3、大约350厘米长
4、活到
5、重的多
6、10公斤食物
二、知识链接
1、表述事物之间的倍数关系，常用句型有“倍数+as+原级+as”，“倍数+比较级+than”。
2、表示一倍用once，两倍用twice, 三倍（以）上用“基数词+times”。若要表述“比……倍还要多”可在倍数前加over, more than.。
完成这几个练习题。
（1）你的房间是我的两倍大。Your room is ______ ______ ______ mine.
（2）猎豹跑得比人快六倍还要多。
A cheetah runs _______ ______ ______ ______ _______ a man.
3、weigh 表示“称……的重量”，是及物动词；表示“重(多少)”，是不及物动词。如：He weighe d the fish. 他称了这条鱼。
He weighs 60 kilos. 他体重60公斤。
4. birth n. 出身, 血统, 出生, 诞生, 出现, 起源
例句: She gave birth to a fine healthy baby. 她生了一个健康漂亮的婴儿。
5. up to 的常见用法
（1）表示程度或数量，表示"达到……程度或数量", 相当于as fa r as
如：Up to ten people can sleep in this tent.这个帐篷至多能睡十人。
（2）“up to ”意为“不多于，不迟于”。例如：Read up to page 109. （读到第100 页。）（3）“up to ”后面接表示刻度、标准的词语时，意为“达到某种要求或水平”。如：Is their spoken English up to the company's standard？（他们的英语口语达到公司的水平了吗？）
通过预习，你还发现有哪些问题？
___________________________________________________________
【学习过程】
（一）预习情况检查
1、在组内讨论交流预习中遇到的困难或存在的问题。
（二）综合技能的训练：
1、按要求完成1a；
2、仿照1b，练习对话。
（三）听力训练：
1、引入听力内容；
2、听录音两遍，完成1c，1d.
3、背诵听力内容。
（四）学习成果展示：仿照听力内容编对话，并小组展示。
(五) 总结：今天我们学习了_________________________________
(六) 课堂检测
( ) 1 .The earth is about____ as the moon.
A. as fifty time big
B. fifty times as big
C. as big fifty times
D. fifty as times big
( ) 2 .Your room is ________mine.
A. twice as large than
B. twice the size of
C. bigger twice than
D. as twice large as
( ) 3. Your room is ___ than mine.
A. three time big
B. three times big
C. three times bigger
D. bigger three times
( ) 4.His father is ____than his mother. ;
A. older four years
B. as four years older
C. four years older
D. bigger four years
( )5. I don’t like to read books in the sunshine because it’s bad _____my eyes.
A. at
B. for
C. with
D. to
【课后作业】
1.根据第五课时的课前自学指导进行预习；
2.完成节节练。
第四课时节节练
一、单项选择（基础题）weigh翻译
( ) 1. Are they_______ than an adult panda?
A. very smaller    B .a lot of smaller    C .much smaller    D. smaller a lot
( ) 2. Her science and English are a little better ______ Lucy’s.
A. at
B. in
C. than
D. of
( )3. In order to protect our earth, we should use the bus ____and drive our cars ___.
A. more, less
B. less, more
C. much, little
D. more, fewe r.
( ) 4. Her physics ______ better than any other students’
A. is
B. are
C. do
D. does.
( ) 5.___ he read the book, ____ he g ot in it.
A. The more; the more interesting
B. The less; the more interesting
C. The more; the more interested
D. More; more interested
二、用形容词和副词的适当形式填空。（提高题）
1. Tom is ______ (tall) than any other student in his class. So he is _______ (tall) in his class.
2. Li Ming is one of ________(clever) boys in our class.
3. The sun is _______ (bright) than all the other stars because it is _______ (near) to the earth.
4. The earth receives ______ (little) heat from the sun in winter than in summer.
5. The train is running _________ and _______ (fast).
三、从方框中选择恰当的短语并用其适当形式填空。（拓展题）
1. What about ___________ a baby panda?
2. Is a baby panda also _____________?
3.My sister is _______________me, we are both outgoing.
4.I went to bed late last night,_____________ I didn’t get up early t his morning.
5. He said that it was__________ day i n his life
【课后反思】
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