外研版 必修1 Module 5 A Lesson in a Lab 一轮复习 课件(54张PPT)

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名称 外研版 必修1 Module 5 A Lesson in a Lab 一轮复习 课件(54张PPT)
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更新时间 2023-03-29 12:30:45

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(共54张PPT)
astonished
equipment
to have
学案(三) 高考语篇的价值发掘——提升学科素养
(2020·浙江1月高考·阅读理解B篇)对接主题:科技发展与信息技术创新,科学精神,信息安全
Milwaukee, Wisconsin, is road testing a new way to keep winter roads ice-free — by spreading on them cheese brine, the salty liquid used to make soft cheeses, like mozzarella.
Wisconsin, also called “America's Dairyland”, is famous for its cheese. The state produced 2.8 billion pounds of cheese last year! As a result, there was a lot of leftover cheese brine. Disposing of (处置) the brine can be expensive. So what should cheese makers do with the waste
Normally, towns use rock salt to de-ice streets. The salt lowers water's freezing point, causing ice to melt (融化). But using cheese brine could help both cheese producers and cities save money, while keeping roads safe. Cheese brine has salt in it, which, like the rock salt, helps lower water's freezing point.
In addition to saving money, cheese brine could also be a more eco-friendly option. Many people suspect that all the rock salt used every winter is harming the environment.
Rock salt is made of sodium chloride, the same compound (化合物) in ordinary table salt. Sounds harmless, right But while you probably add only a small amount of salt to your food, road crews spread about 20 million tons of salt on U.S. roads every year!
The chemical washes off roads and goes into the ground. There it can pollute drinking water, harm plants, and eat away soil. By spreading cheese brine on streets before adding a layer of rock salt, Milwaukee may be able to cut its rock salt use by 30 percent.
Cheese brine has a downside too — a smell similar to that of bad milk. “I don't really mind it,” Emil Norby told Modern Farmer magazine. He works for one of Wisconsin's county highway commissions and came up with the idea of using cheese brine. “Our roads smell like Wisconsin!” he said.
?好题不厌百回做,每做一次都有新发现
1.Why can cheese brine help keep winter roads ice-free
A.It is soft.      B.It contains salt.
C.It is warm. D.It has milk in it.
解析:细节理解题。根据第一段的“cheese brine, the salty liquid used to make soft cheeses”和第三段最后一句可知,因为奶酪盐水含有盐,所以可以被用来除冰。故答案选B项。
答案:B 
语篇解读:本文是一篇说明文。文章主要介绍了美国威斯康星州密尔沃基市变废为宝,用剩余的奶酪盐水为道路除冰。
2.What is a benefit of using cheese brine on roads
A.Improving air quality.
B.Increasing sales of rock salt.
C.Reducing water pollution.
D.Saving the cheese industry.
解析:推理判断题。根据第四段第一句和倒数第二段第二句可推断,利用奶酪盐水来除冰更加环保,比用其他化学制品更能够减少对水的污染。故选C项。
答案:C 
3.Milwaukee's new way to de-ice streets may be an example of ______ .
A.barking up the wrong tree
B.putting the cart before the horse
C.robbing Peter to pay Paul
D.killing two birds with one stone
解析:推理判断题。根据第三段的“But using cheese brine ...keeping roads safe.”和第四段第一句可知,利用奶酪盐水来除冰是一举两得的事情,既能够省钱,做到废物再利用,同时又能够比其他化学制品更加环保。故答案选D项,killing two birds with one stone“一石二鸟”。
答案:D
3.Milwaukee's new way to de-ice streets may be an example of ______ .
A.barking up the wrong tree
B.putting the cart before the horse
C.robbing Peter to pay Paul
D.killing two birds with one stone
解析:推理判断题。根据第三段的“But using cheese brine ...keeping roads safe.”和第四段第一句可知,利用奶酪盐水来除冰是一举两得的事情,既能够省钱,做到废物再利用,同时又能够比其他化学制品更加环保。故答案选D项,killing two birds with one stone“一石二鸟”。
答案:D
?文本精读固基础,高考强调基础扎实
(一)由文本积阅读词汇
1.brine n.          _____
2.liquid n. _____
3.leftover n. _______
4.de-ice vt. _______________
5.producer n. _______
6.option n. _____
7.suspect v. _____
8.chemical adj. _______
9.layer n. _________
10.downside n. _______________
盐水
液体
剩余物
除去……上的冰
生产者
选择
怀疑
化学的
层;表层
缺点;不利方面
(三)由文本积主题词块
1.keep winter roads ice-free ___________________
2.be famous for ____________
3.water's freezing point _________
4.a small amount of salt _________
5.wash off roads _________
6.eat away soil _________
7.a layer of rock salt __________
8.come up with the idea of ________________
保持冬季道路不结冰
因……而出名
水的冰点
少量的盐
冲洗道路
侵蚀土壤
一层岩盐
提出……的想法
(四)用文本词汇替换蓝体词汇
1.I think he's just going to deal with ( ) this problem another day.
2.Besides ( ) that, I think our life should get into a simplification.
3.They began to want their father to be the same as ( ) other daddies.
(五)在语境中悟微点语法
1.But while you probably add only a small amount of salt to your food, road crews spread about 20 million tons of salt on U.S.roads every year!
分析:句中_______意为“虽然;尽管”,引导让步状语从句。
do with
In addition to
similar to
while
[对点练] 完成句子
①____________________________________________, they got along quite well in the summer camp.
虽然学生们来自不同的国家,但他们在夏令营中相处得很好。
②_______________________________, I don't think it's a good idea to spend too much time on it.
虽然互联网有很大的帮助,我认为花太多的时间在上面不是一个好主意。
While the students came from different countries
While the Internet is of great help
2.Cheese brine has a downside too — a smell similar to that of bad milk.
[对点练] 写出that指代的词
①The weather in Chongqing is much warmer than that in Beijing.(指________)
②The water in the cup is hotter than that in the pot.(指______)
③This chair made of steel is stronger than that made of wood.(指______)
分析 句中_____指代前面的smell。
微语法 that,特指,指代上文提到过的可数或不可数名词,但与上文事物同名异物。
that
weather
water
chair
(六)在语境中赏表达之美
1.(赏用词之美)There it can pollute drinking water, harm plants, and eat away soil.
赏析:作者用pollute(污染),harm(伤害),eat away(侵蚀)三个动词(短语)全面、准确地描述了这种化学物质给环境带来的影响。
2.(赏意境之美)But while you probably add only a small amount of salt to your food, road crews spread about 20 million tons of salt on U.S.roads every year!
赏析:公路工作人员在美国的公路上每年撒下大约2 000万吨盐,通过连词while与生活饮食中人们少量添加食盐放在一个复合句中,两种情况形成鲜明对比,给读者留下深刻印象。
3.(赏修辞之美)Our roads smell like Wisconsin!
赏析:句中作者把路上闻到的味道说成威斯康星州(Wisconsin),借用与这种奶酪味道密切相关的Wisconsin来代替路上闻到的味道。使用借喻的修辞方法,突出事物的本质特征,增强语言的形象性,文笔简洁精炼,语言富于变化和幽默感。
“课下主题训练”见“课下主题训练(五)”
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