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2026春季新版七年级下册外研版Unit 5 Amazing nature
语法讲义+专项训练
形容词、副词的比较级和最高级讲义
一、概念（一句话分清）
原级：描述人或事物本身的性质、状态（高、快、美、安静）。
比较级：两者之间对比，表“更……”。
最高级：三者及以上或特定范围对比，表“最……”。
二、形容词 vs 副词（词性区分，避免误用）
1. 形容词（adj.）修饰名词，放名词前或系动词后。
常用系动词：be、look、sound、smell、taste、feel、become、get、turn
例：a tall tree；The park looks beautiful.
2. 副词（adv.）修饰动词、形容词、副词或整个句子，大多以-ly结尾（fast、hard除外）。
例：run fast；sing clearly；very quiet
三、比较级、最高级的构成（规则+不规则）
（一）规则变化（5类）
1. 单音节词 → 直接加-er / -est
tall → taller → tallest；short → shorter → shortest；small → smaller → smallest
2. 以e结尾 → 加-r / -st
nice → nicer → nicest；late → later → latest；fine → finer → finest
3. 重读闭音节（辅+元+辅）→ 双写尾字母+ -er / -est
big → bigger → biggest；thin → thinner → thinnest；hot → hotter → hottest
4. 辅音字母+y结尾 → 变y为i+ -er / -est
happy → happier → happiest；easy → easier → easiest；busy → busier → busiest
5. 多音节词（≥3音节）+ 部分双音节词 → 前加more / most
beautiful → more beautiful → most beautiful
interesting → more interesting → most interesting
carefully → more carefully → most carefully
必记双音节词：careful、quiet、slowly、famous、modern
（二）不规则变化（必考，需熟记）
good/well（好）→ better → best
bad/badly/ill（差）→ worse → worst
many/much（多）→ more → most
little（少）→ less → least
far（远）→ farther（距离）/ further（程度）→ farthest / furthest
old（老/旧）→ older（年龄/新旧）/ elder（亲属长幼）→ oldest / eldest
四、核心用法句型（原级/比较级/最高级）
（一）比较级句型（两者对比）
1. A + 比较级 + than + B （A比 B更……）
The river is wider than the stream.
She draws more carefully than him.
2. 比较级 + and + 比较级 （越来越……）
The wind blows harder and harder.
The forest becomes more and more lively.
3. The + 比较级, the + 比较级 （越……，就越……）
The higher you climb, the fresher the air is.
The more you explore nature, the more you love it.
4. 修饰比较级的词（只能修饰比较级）
much、a lot、a little、a bit、even、far
much brighter（亮得多）；even quieter（甚至更安静）
（二）最高级句型（三者及以上）
1. The + 最高级 + in/of/among （在……中最……）
It is the longest river in China.
This is the most amazing wonder of all.
2. One of the + 最高级 + 复数名词 （最……之一）
It’s one of the most beautiful lakes in the world.
3. 序数词 + 最高级 （第几最……）
It’s the second highest mountain in Asia.
4. 修饰最高级的词
by far、much、almost、nearly
by far the cleanest（最干净的）
五、易错点总结（高频考点）
1. 比较级必须有 than 或隐含两者对比；最高级必须有 范围（in/of/among）。
2. 形容词最高级前必须加the；副词最高级前可省略the。
He runs (the) fastest in our class.
3. 比较级前不加the（the…the…句型除外）。
4. than后接人称代词宾格：She is taller than me。
形容词、副词的比较级和最高级专项训练
一、基础过关·写出词形变化（每空1分，共16分）
1. quiet→比较级_________→最高级_________
2. clear→副词_________→比较级_________
3. fast→副词_________→最高级_________
4. dry→比较级_________→最高级_________
5. wonderful→比较级_________→最高级_________
6. far→比较级（程度）_________→最高级（距离）_________
7. bad→比较级_________→最高级_________
8. many→比较级_________→最高级_________
二、单项选择（每题2分，共20分）
( )1. The lake looks ______ than the pond.
A. clear B. clearer C. clearest D. clearly
( )2. The mountain is ______ higher than the hill.
A. much B. very C. so D. too
( )3. Among all natural wonders, the waterfall is one of ______.
A. amazing B. more amazing C. most amazing D. the most amazing
( )4. The trees grow ______ as the rain comes.
A. taller and taller B. tall and tall C. more taller D. tallest
( )5. The birds sing ______ in the forest than in the city.
A. sweet B. sweeter C. sweetly D. more sweetly
( )6. —Which is ______, the desert or the grassland
—The grassland.
A. green B. greener C. greenest D. the greenest
( )7. The wind blows ______ than yesterday.
A. gentle B. more gentle C. gently D. more gently
( )8. The ______ you walk in nature, the ______ relaxed you feel.
A. long; good B. longer; better C. longest; best D. longer; good
( )9. Nature makes our life ______ than before.
A. colourful B. more colourful C. most colourful D. colourfully
( )10. Of all the seasons, autumn is ______ comfortable.
A. the most B. more C. very D. much
三、用所给词的适当形式填空（每空2分，共24分）
1. The sea is ______ (peace) than the river.
2. This is ______ (fantastic) place I have ever visited.
3. The rocks look ______ (strange) at sunset than at noon.
4. The sun shines ______ (warm) in spring than in winter.
5. The path becomes ______ (narrow) as we go deeper.
6. There are ______ (many) flowers in the garden than in the yard.
7. The waterfall is ______ (powerful) of all natural sights here.
8. We should keep nature ______ (clean) and cleaner.
9. The rain falls ______ (light) in autumn than in summer.
10. The forest feels ______ (calm) after the rain.
11. The sky turns ______ (blue) on sunny days.
12. The scenery here is ______ (beautiful) than that in the town.
四、句型转换（每空2分，共20分）
1. The river is wide. The sea is wider.（合并为一句）
The sea is ______ ______ the river.
2. This is the most beautiful park in the city.（改为同义句）
This park is ______ beautiful than ______ ______ park in the city.
3. The hill is low. The mountain is higher.（合并为一句）
The mountain is ______ ______ the hill.
4. He walks slowly in the park.（用than on the street改写）
He walks ______ ______ in the park than on the street.
5. The Amazon rainforest is the largest rainforest in the world.（改为一般疑问句）
______ The Amazon rainforest ______ largest rainforest in the world
五、语法填空，用括号内单词的正确形式填空（每空2分，共20分）
Amazing nature is everywhere. The grass is 1. ______ (green) in spring than in winter. The stream is 2. ______ (clear) after rain than before. Among all natural places, the forest is one of 3. ______ (wonderful) ones. It has 4. ______ (much) fresh air than the city.
The birds fly 5. ______ (free) in the sky than in cages. The mountains look 6. ______ (great) at dawn than at dusk. The 7. ______ (far) you travel in nature, the 8. ______ (magic) it feels.
We should protect nature. The 9. ______ (well) we treat it, the 10. ______ (happy) we will be.一、基础过关·写出词形变化（每空1分，共16分）
1. quiet→quieter→quietest
解析：单音节词，直接加-er/-est。
2. clear→clearly→clearer
解析：形容词clear变副词加-ly；比较级直接加-er。
3. fast→fast→fastest
解析：fast形副同形；单音节词最高级加-est。
4. dry→drier→driest
解析：辅音+y结尾，变y为i加-er/-est。
5. wonderful→more wonderful→most wonderful
解析：多音节词，前加more/most。
6. far→further→farthest
解析：不规则变化：further（程度）；farthest（距离）。
7. bad→worse→worst
解析：不规则变化：bad→worse→worst。
8. many→more→most
解析：不规则变化：many→more→most。
二、单项选择（每题2分，共20分）
1. B. clearer
解析：than表比较，用比较级clearer。
2. A. much
解析：much可修饰比较级，表“……得多”。
3. D. the most amazing
解析：one of + the + 最高级 + 复数名词。
4. A. taller and taller
解析：比较级+and+比较级，表“越来越……”。
5. D. more sweetly
解析：修饰动词sing用副词；than表比较，sweetly变比较级more sweetly。
6. B. greener
解析：两者选择，用比较级greener。
7. D. more gently
解析：修饰动词blow用副词；than表比较，gently变比较级more gently。
8. B. longer; better
解析：the+比较级，the+比较级，表“越……越……”。
9. B. more colourful
解析：than表比较，colourful是多音节词，比较级more colourful。
10. A. the most
解析：of all表范围，用最高级the most comfortable。
三、用所给词的适当形式填空（每空2分，共24分）
1. more peaceful
解析：than表比较，peace→peaceful，多音节词比较级more peaceful。
2. the most fantastic
解析：I have ever visited表范围，用最高级the most fantastic。
3. stranger
解析：than表比较，strange比较级stranger。
4. more warmly
解析：修饰动词shine用副词；than表比较，warmly→more warmly。
5. narrower
解析：than隐含比较，narrow比较级narrower。
6. more
解析：than表比较，many比较级more。
7. the most powerful
解析：of all表范围，powerful最高级the most powerful。
8. cleaner
解析：比较级+and+比较级，clean比较级cleaner。
9. more lightly
解析：修饰动词fall用副词；than表比较，lightly→more lightly。
10. calmer
解析：隐含比较，calm比较级calmer。
11. bluer
解析：隐含变化比较，blue比较级bluer。
12. more beautiful
解析：than表比较，beautiful比较级more beautiful。
四、句型转换（每空2分，共20分）
1. wider than
解析：合并句，用比较级+than。
2. more; any other
解析：最高级变比较级：more…than any other+单数名词。
3. higher than
解析：合并句，用比较级+than。
4. more slowly
解析：修饰动词walk用副词，than表比较，slowly→more slowly。
5. Is; the
解析：最高级句子变一般疑问句，is提前，保留the。
五、语法填空（每空2分，共20分）
1. greener
解析：than表比较，green比较级greener。
2. clearer
解析：than表比较，clear比较级clearer。
3. the most wonderful
解析：one of+the+最高级+复数名词。
4. more
解析：than表比较，much比较级more。
5. more freely
解析：修饰动词fly用副词；than表比较，freely→more freely。
6. greater
解析：than表比较，great比较级greater。
7. farther
解析：the+比较级，far比较级farther（距离）。
8. more magical
解析：the+比较级，magical比较级more magical。
9. better
解析：the+比较级，good比较级better。
10. happier
解析：the+比较级，happy比较级happier。

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