陕旅版（三起）英语五年级下册《Stories about Spring》Spring Is Coming PPT课件下载
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《Stories about Spring》Spring Is Coming PPT课件下载
第一部分内容：课前自主预习
单词闯关
1.低的；浅的________
2.低于；在……下面________
3.零________
4.直到……为________
5.groundhog________
6.bush________
短语互译
1.below zero ____________
2. drive to sp. _______________
3.在周末 ____________
4.期待，盼望____________
句型在线
1.天气有点儿狂暴。It's ________ ________ wild.
2.气温可能会低至零下15摄氏度。
The temperature can be________ ________ ________ 15 ℃.
3.我们可能直到五月或六月才能看到一些花儿！
We probably ________ see any flowers ________ May or June！
课文初探
判断正(T)误(F)：
( )1. In Edmonton, the weather in March can be cool and windy.
( )2. The temperature can be as low as 15℃.
( )3. We probably won't see any flowers before May orJune.
( )4. After school today, they played basketball outside.
( )5.In spring, many families drive to the countryside on weekdays.
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Stories about SpringPPT，第二部分内容：课堂互动探究
词汇点睛
1 below prep. &adv. 低于；在……下面
[辨析] below与under
below
指位置低于某物或在某物下方，但不一定在正下方，所指范围较宽，与above相对。
under
指在某物的正下方，有垂直在下的含义，与over相对。
2 as…as 和……一样
[观察] The temperature can be as low as 15℃.
气温可能会低至零下15摄氏度。
Li Ming runs as fast as Jim.李明和吉姆跑得一样快。
[探究] as…as中间必须用形容词或副词的________(原级/比较级)。其否定形式为not as/so…as，意为“比不上……；不如……”。例如：
Tony doesn't run as/so fast as Tom.托尼不如汤姆跑得快。
句型透视
We probably won't see any flowers until May or June!
我们可能直到五月或六月才能看到一些花儿！
[探究] (1)until用于否定句，构成not…until，意为“___________”，通常与_______(瞬间性/延续性)动词连用，表示主句谓语动词所表示的动作直到until所表示的时间才发生。
(2)not…until结构可与before/after引导的从句相互转换。例如：
I didn't go to bed until I finished all the homework.
＝I didn't go to bed before I finished all the homework.
＝I went to bed after I finished all the homework.
直到完成所有的家庭作业，我才上床睡觉了。
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