资源简介

Unit 5 Amazing nature
第三课时Understanding ideas（语法学习）
1.课时教学目标
通过本课时学习，学生能够：
（1）理解形容词、副词的比较级和最高级的意义及用法；
（2）运用形容词、副词的比较级和最高级谈论自己心目中最美的自然景观。
2.核心语言
核心词汇：shorter than, one of the most famous, be famous for, run much faster, two metres high, the highest tides等。
核心语法：形容词、副词的比较级和最高级。
3.教学过程
教学目标 学习活动 效果评价
Review 学生回顾上一课时的课文内容，回答问题：How does the writer feel about the Qinghai-Tibet Plateau 根据学生回答的情况，评价其对上一课时课文的掌握情况，同时引入本课时内容。
理解形容词、副词的比较级和最高级的意义及用法。 Grammar 1.学生观察形容词不同形式的变化，总结形容词比较级和最高级的变化规则及用法。 2. 学生根据形容词、副词的比较级和最高级的规则，归纳和总结。 Exercises 1.学生完成增补表格的填空，进一步巩固、强化对目标语法的简单运用。 2.学生阅读文章，使用所给形容词及副词的正确形式填空。 3.学生思考：Do you know any other famous rivers in the world How long is it What is it famous for 然后两人一组进行问答并展示，注意形容词的比较级和最高级的运用。 根据学生观察的情况，了解其对形容词、副词的比较级和最高级的已知与未知。 根据学生总结的情况，评价其能否理解形容词、副词的比较级和最高级的意义及用法。 根据学生完成活动的情况，评价其对形容词、副词的比较级和最高级用法的内化情况。
运用形容词、副词的比较级和最高级谈论自己心目中最美的自然景观。 小组合作 学生先听对话，完成表格。 学生思考教材活动8提出的问题，小组合作，讨论各自认为的最美丽的自然景观。学生可以使用教材的词汇和Useful expressions中的表达写一个对话。 根据学生的回答情况，评价其能否正确运用本课时的核心词汇、句型和语法谈论自己心目中最美的自然景观。
作业内容： 必做： Write a conversation to describe the most beautiful natural place in your eyes. 选做： Make a short video about the most beautiful natural place to you and talk about it.
教学设计：(共18张PPT)
Unit 5 Amazing nature
Grammar
Revision
How does the writer feel about the Qinghai-Tibet Plateau
In the writer’s heart, it’s better than any other place. The writer is proud to be from one of the most beautiful places in the world.
Read and observe.
Rules
high
higher
highest
amazing
more amazing
most amazing
quiet
quieter
quietest
Grammar
They’re about comparatives and superlatives. Let's learn something more about them.
形容词、副词的比较级和最高级
一、形容词和副词的概念
形容词：用来表示人或者事物性质、状态和特征的词类，主要修饰名词和代词。
e.g. He is tall. 他很高。
副词：用来表示行为或状态特征的词类，主要修饰形容词，副词，动词甚至句子，有少量副词还可以修饰名词。
e.g. The box is too heavy. 这个箱子太重了。
二、形容词和副词的比较级
用于两者之间的比较，表示 “更……”，标志词是than（比）。
e.g. Tom is taller than Jim. 汤姆比吉姆高。
常见用法
基本句型 ： A + be/ 动词 + 比较级 + than + B ，表示 A 比 B 更……（e.g. She is smarter than me）。
渐进变化 ： 比较级 + and + 比较级 ，表示“越来越……”（e.g. warmer and warmer）。
比例关系 ： The + 比较级，the + 比较级 ，表示“越……越……”（e.g. The sooner, the better）。
修饰词 ：比较级前可用 much, far, even, a lot 等修饰程度，但 禁用 very 。
形容词、副词比较级的构成（规则变化）
构成方法 原级 比较级
单音节和少数双音节单词 tall, long, short, hard,fast
nice, fine, late
big, hot, thin
busy, easy, early
interesting, slowly, carefully 大部分双音节和多 音节单词
一般在词尾加-er
以字母e结尾的，直接加-r
以重读闭音节结尾的，如末尾只有一个辅音字母，应先双写该字母，再加-er
以“辅音字母 + y”结尾的，先把y变成i，再加-er
taller, longer,
shorter, harder,
faster
nicer, finer, later
bigger, hotter, thinner
busier, easier, earlier
在单词前加more
more interesting,
more slowly,
more carefully
三、形容词和副词的最高级
用于三者及以上的比较，表示 “最……”，标志词是the 和 in/of 短语（表示范围）。
e.g. Lily is the tallest in our class.莉莉是我们班最高的。
常见用法
1. 基本结构 : 主语 + be/ 动词+the+ 最高级 +in/of 短语，副词前的 the 可省略，e.g. He runs (the) fastest of the three。
2. one of the+ 最高级 + 可数名词复数 ：表示“……是最……之一”，e.g. One of the most popular stars。
3. 修饰词：可用 by far，almost，nearly 等词修饰，e.g. This hat is nearly the biggest。
形容词和副词最高级的构成（规则变化）
构成方法 原级 最高级
单音节和少数双音节单词 tall, long, short, hard, fast
nice, fine, late
big, hot, thin
busy, easy, early
大部分双音节 和多音节单词 interesting, slowly, carefully
一般在词尾加-est
以字母e结尾的，直接加-st
以重读闭音节结尾的，如末尾只有一个辅音字母，应先双写该字母，再加-est
以“辅音字母 + y”结尾的，先把y变成i，再加-est
在单词前加most
tallest, longest, shortest, hardest, fastest
nicest, finest, latest
biggest, hottest,
thinnest
busiest, easiest, earliest
most interesting,
most slowly,
most carefully
形容词和副词比较级和最高级的构成
（不规则变化）
原级 比较级 最高级
good, well
bad / ill, badly
many / much
little
far
best
worst
most
least
farthest / furthest
better
worse
more
less
farthest / furthest
Now, let's do some exercises to see how much you know about comparatives and superlatives.
Complete the facts about wonders in China.
6
shorter
higher
highest
Mahu Lake in Sichuan: 134 m Mahu Lake is deep.
Kanas Lake is ______.
Changbaishan Tianchi
Lake is the ______.
Kanas Lake in Xinjiang: 188.5 m Changbaishan Tianchi Lake in Jilin: 373 m deeper
deepest
P71
Complete the passage with the correct form of the words in brackets.
7
P71
shorter
most famous
slow
faster
high
highest
Is the Qiangtang River the most beautiful place in your opinion
Listen to the coversation and complete the table.
A: What's the most beautiful place in the world, in your opinion
B: In my opinion, it's the Great Barrier Reef. lt's the largest reef in the world.
A: Why do you like it
B: l like it because there are so many colours there. The water is clear. You can see different colours of the reef and fish!
The Great Barrier Reef (大堡礁) — the largest reef in the world
Because there are so many colours there, the water is clear and you can see different colours of the reef and fish!
In Australia.
It's full of colorful corals (珊瑚) and sea animals. The water is clear and you can see fish swimming among the corals.
Useful expressions:
It is famous for ...
This area is full of ... in nature.
It is like ...
Words can't express my love for ...
It is one of ... in the world.
Work in pairs. Talk about the most beautiful natural place in your opinion. Use the words and expressions from the reading passage and the Useful expressions to help you.
8
P72
West Lake
In Hangzhou,
Zhejiang.
It's like a beautiful painting. The water is clear and calm. There are pretty gardens and old temples around it. Small boats are on the lake, and the Su Causeway and Bai Causeway make it more charming (迷人的).
Because it's so beautiful. The water is clear, and there are lovely gardens and old temples around. It makes me feel relaxed.
A: Hello. What’s the most beautiful natural place in your opinion
B: In my opinion, the most beautiful natural place is…
A: Where is it
B: It’s in...
A: What is it famous for
B: It’s famous for...
A: What is it like
B: It is like…
A: Why do you like it
B: I like it because...
一、单项选择。
( ) 1. The T-shirt looks nice, but it costs too much.
Do you have _______
A. the cheaper one B. a cheaper one
C. an expensive one D. cheaper one
( ) 2. - What do you think of Taylor Swift's Love Story
- I like it. I think it is the most beautiful one
______ all her songs.
A. among B. between
C. above D. with
B
A
( ) 3. Sam did _____ in his studies this year than
last year.
A. well B. better
C. best D. the best
( ) 4. - The fish in this restaurant is ___ in the town.
- That's true. You can't find better fish in any
other restaurant.
A. best B. the best
C. good D. better
( ) 5. China is one of ______ countries in the world. We are
all proud of it.
A. older B. the older
C. oldest D. the oldest
B
B
D
二、用括号中所给单词的正确形式填空。
1. This suitcase is ______ (large) than that one.
2. In winter, the weather in North China is _____ (dry) than that in South China.
3. — Is the library __________ (high) of all the
buildings in your school
— Yes, it is.
4. Zhaozhou Bridge is _________ (old) stone arch bridge in the world.
5. Gina won first prize in the quiz, and her friend looked ____________ (excited) than her.
larger
drier
the highest
the oldest
more excited
Homework
Must do
Make a short video about the most beautiful natural place to you and talk about it.
Write a conversation to describe the most beautiful natural place in your eyes.
Choose to do

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