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(共29张PPT)
Amazing Plants and Animals
Section A (3a-3c) Grammar
Unit 4
Redwood tree
红杉树
It’s ___________ tree in the world.
the tallest
moss
苔藓
It’s ___________ plant in the world.
the oldest
cheetah
猎豹
The cheetah runs ___________among all land animals.
the fastest
bamboo
竹子
I think _______________plant in the world is bamboo.
the most useful
It is perhaps __________________plant in the world.
the most interesting
blue whale
蓝鲸
The blue whale is ________and ________ animal in the world.
the largest
heaviest
giraffe
长颈鹿
It’s ___________animal among all animals.
the tallest
Qomolangma
珠穆朗玛峰
It’s ________________mountain in the world.
the tallest
Niagara Waterfalls
尼加拉大瀑布
It’s ________________waterfall in the world.
the longest
The Sahara
撒哈拉沙漠
It’s _______________desert in the world.
the largest
The Nile
尼罗河
It’s ________________river in the world.
the longest
The Caspian Sea
里海
It’s ______________lake of all the salt lake.
the largest
3a
Read the sentences and notice the words in bold. What are the ways to form a superlative adjective or adverb
The blue whale is the largest and heaviest animal in the world.
The biggest land animal in the world is the African elephant.
The cheetah runs the fastest among all land animals.
I think the most useful plant in the world is bamboo.
It is perhaps the most interesting plant in the world.
Which parts of speech (词性) have superlative forms（最高级形式）
形容词
副词
最······
the + adj. / adv. + -est
the + most + adj. / adv.
比较级和最高级的构成
tall
taller
tallest
1.直接加 -er 或 -est
比较级和最高级的构成
cute
cuter
cutest
2.以不发音的字母e结尾的单词直接加 -r 或 -st
比较级和最高级的构成
heavy
heavier
heaviest
3. 以“辅音字母+-y”结尾的重读闭音节词，把y
变为i，再加 -er 或- est
比较级和最高级的构成
get up early
get up earlier
get up earliest
3. 以“辅音字母+-y”结尾的重读闭音节词，把y
变为i，再加 -er 或- est
比较级和最高级的构成
big
bigger
biggest
4. 以一个辅音字母结尾的重读闭音节
双写该辅音字母再加 -er或 -est
lake
river
sea
比较级和最高级的构成
slowly
more slowly
most slowly
5.部分双音节词和多音节词分别在原级前加
more构成比较级和most构成最高级
1) many
much
more
most
2) good
well
better
best
3) bad
badly
worse
worst
4) old
older
elder
oldest
eldest
5) far
farther
further
farthest
furthest
6) little
less
least
Discussion
What do these sentences have in common
The blue whale is the largest and heaviest animal in the world.
The biggest land animal in the world is the African elephant.
The cheetah runs the fastest among all land animals.
Structure 1
主语+be+the+adj.最高级+in/of短语 …是…中最…的
主语+实义动词(+the)+adv.最高级+in/of短语 …是…中最…的
Discussion
What do these sentences have in common
Which do you think is the most beautiful, the rose, the peony, or the lotus flower
Which animal jumps the highest, the lion, the monkey, or the tree frog
Structure 2
疑问词
哪一个最……，A，B，还是 C？
＋be / v.
, A, B, or C
＋the＋最高级
Discussion
What do these sentences have in common
I think moss is one of the oldest plants.
Bamboo is one of the fastest-growing plants
Also, it’s one of the most useful plants in the world.
Structure 3
one of
最……的……之一
＋the＋最高级
＋名词复数
注意
1
当最高级前面有物主代词或名词所有格时, 不加定冠词 the。
e.g. Jane is Lucy’s best friend.
2
最高级前可加序数词。
e.g. The Yellow River is the second longest river in China.
3
最高级修饰作表语或介词宾语的名词、代词时，被修饰的词往往省略。
e.g. Mike is the laziest (student) in our class.
3b
Complete the sentences with the superlative forms of the words in brackets.
Among all animals, I love pandas the best. I think they are _________(cute) animals in the world.
Which do you think is ________________ (beautiful), the rose, the peony, or the lotus flower
Look at that butterfly! It has __________________ (colourful) wings.
Which animal jumps ___________ (high), the lion, the monkey, or the tree frog
The elephant birds were _________ (large) and _______ (heavy) birds ever on earth. Some could stand up to three metres tall and weigh up to 860 kg.
the cutest
the most beautiful
heaviest
the most colourful
(the) highest
the largest
3c
Complete the passage with the superlative forms of the words in the box.
ancient beautiful common good popular
The ginkgo tree is one of ________________ living trees on earth.
Ginkgo trees first appeared over 200 million years ago.
Chinese people love the ginkgo, as it is a symbol of hope and
long life. Many Chinese believe that the old ginkgo tree in the
Zhongnan Mountains in Shaanxi Province is ________________.
Thousands of tourists come to see it each year, especially in mid-October, as it is _____________ time to see it. The ginkgo tree is one of __________________ trees in streets, parks, and gardens across China. When autumn comes, one of ________________ activities is to take a walk under ginkgo trees. People believe the bright yellow leaves can bring joy to their heart.
the most ancient
the most beautiful
the best
the most common
the most popular
Topic: An introduction to _________________
Origin (起源) Ginkgo trees first appeared over ___________________________, making them one of _______________________________ on earth.
Importance It is a symbol of ________________________.
A famous tree The old ginkgo tree in the Zhongnan Mountains in ___________________ is the most beautiful. The best time to see it is _______________.
Common place As one of the most common trees, people can see ginkgo trees in _______, _______, and _______ across China.
Popular activity When autumn comes, people usually _____________ under ginkgo trees. They believe the bright yellow leaves can bring ____________________.
the ginkgo tree
200 million years ago
the most ancient living trees
hope and long life
Shaanxi Province
mid-October
streets
parks
gardens
take a walk
joy to their heart

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