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参考答案
一、基础过关
1. softer；softest 2. brightly；brighter 3. calmly；calmest
4. saltier；saltiest 5. more amazing；most amazing 6. farther；furthest
7. better；best 8. less；least
二、单项选择
1.B 2.A 3.D 4.A 5.D 6.B 7.D 8.B 9.B 10.A
三、用所给词的适当形式填空
1. more calmly 2. the most amazing 3. saltier 4. more brightly
5. older 6. fewer 7. the most beautiful 8. better
9. more softly 10. faster 11. greener 12. more pleasant
四、句型转换
1. bigger than 2. more；any other 3. hotter than 4. more beautifully
5. Is；the
五、语法填空，用括号内单词的正确形式填空
1. brighter 2. calmer 3. the most amazing 4. more 5. more softly
6. more colourful 7. deeper 8. more magic 9. more carefully 10. better2026春季新版七年级下册外研版Unit 5 Amazing nature 语法讲义+专项训练
Grammar：形容词、副词的比较级和最高级
一、概念（一句话分清）
原级：描述事物本身性质（高、快、好）
比较级：两者比较，表“更……”
最高级：三者及以上 / 一定范围，表“最……”
二、形容词 vs 副词（先分清词性，才不会错）
1. 形容词（adj.）修饰名词，放在名词前或系动词后
系动词：be、look、sound、smell、taste、feel、become、get、turn
例：a tall boy The flower looks beautiful.
2. 副词（adv.）修饰动词、形容词、副词、整个句子,大多以 -ly 结尾（但不是全部）
例：run fast speak clearly very happy
三、比较级、最高级的构成
（一）规则变化（分5类）
1. 单音节词 + er / + est
tall → taller → tallest short → shorter → shortest small → smaller → smallest
2. 以 -e 结尾 + 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
口诀：辅元辅，双写后再加
big → bigger → biggest thin → thinner → thinnest hot → hotter → hottest
red → redder → reddest fat → fatter → fattest
4. 辅音字母 + y → 变 y 为 i + er / est
happy → happier → happiest easy → easier → easiest
busy → busier → busiest heavy → heavier → heaviest
5. 多音节词（3个音节及以上）+ 部分双音节词，前面加 more / most
beautiful → more beautiful → most beautiful interesting → more interesting → most interesting
carefully → more carefully → most carefully popular → more popular → most popular
常见双音节词需加 more：
careful、quiet、slowly、clever、modern、famous
（二）不规则变化（必考，必须背熟）
good / well（好）→better → best
bad / badly / ill（坏、差）→worse → worst
many / much（多）→more → most
little（少）→less → least
far（远）→farther（距离）/ further（程度）→farthest（距离）/ furthest（程度）
old（老、旧）→older（年龄/新旧）/ elder（长幼、亲属）→oldest / eldest
四、用法句型（分原级、比较级、最高级，全）
（一）比较级句型（两者）
1. A + 比较级 + than + B：A 比 B 更……
Lily is taller than Lucy.
He writes more carefully than she.
2. 比较级 + and + 比较级：越来越……
It’s getting colder and colder.
The city becomes more and more beautiful.
3. the + 比较级, the + 比较级：越……，就越……
The harder you study, the better grades you will get.
The more you practice, the more you will learn.
4. 修饰比较级的词（只能修饰比较级，不能修饰最高级）
much、a lot、a little、a bit、even、far
much taller（高得多）
a little better（好一点）
even faster（甚至更快）
（二）最高级句型（三者及以上）
1. the + 最高级 + in / of / among：在……中最……
He is the tallest student in our class.
This is the most delicious food of all.
2. one of the + 最高级 + 复数名词：最……之一
Beijing is one of the biggest cities in China.
She is one of the most popular singers.
3. 序数词 + 最高级：第几最……
He is the second tallest boy in our class.
4. 修饰最高级的词
by far、much、almost、nearly
by far the best（显然最好）
五、易错点总结（考试最爱考）
1. 比较级：必须有 than 或隐含两者对比
2. 最高级：必须有 范围（in/of/among）
3. 最高级前：必须加 the（形容词最高级）
4. 副词最高级前：可省略 the
He runs (the) fastest in our class.
5. 比较级不能加 the（除 the…the…句型）
6. than 后用人称代词宾格
He is taller than me（不用 I）
专项训练
一、基础过关·写出词形变化（每空1分，共16分）
1. soft→ 比较级_________ → 最高级_________
2. bright→ 副词_________ → 比较级_________
3. calm→ 副词_________ → 最高级_________
4. salty→ 比较级_________ → 最高级_________
5. amazing→ 比较级____________ → 最高级____________
6. far→ 比较级（距离）_________ → 最高级（程度）_________
7. good→ 比较级_________ → 最高级_________
8. little→ 比较级_________ → 最高级_________
二、单项选择（每题2分，共20分）
( )1. The sky looks ______ today than yesterday.
A. bright B. brighter C. brightest D. brightly
( )2. The Dead Sea is ______ saltier than common lakes.
A. much B. very C. so D. too
( )3. Among all the natural wonders, the Great Wall is one of ______.
A. famous B. more famous C. most famous D. the most famous
( )4. Water in the desert becomes ______ as the weather gets hot.
A. less and less B. little and little C. fewer and fewer D. few and few
( )5. The mountains shine ______ in the sun than usual.
A. bright B. brighter C. brightly D. more brightly
( )6. —Which river is ______, the Yangtze River or the Yellow River
—The Yangtze River.
A. long B. longer C. longest D. the longest
( )7. This butterfly flies ______ than that one.
A. beautiful B. more beautiful C. beautifully D. more beautifully
( )8. The ______ you climb the mountain, the ______ the view is.
A. high; good B. higher; better C. highest; best D. higher; good
( )9. The local people live ______ in the countryside than in the city.
A. happily B. more happily C. happy D. happier
( )10. Of all the seasons, spring is ______ beautiful.
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 river runs ______ (calm) through the forest than before.
2. This is ______ (amazing) natural wonder I have ever seen.
3. The water in the Dead Sea is ______ (salty) than that in the sea.
4. The sun shines ______ (bright) at noon than in the morning.
5. The wooden bridge looks ______ (old) than the stone bridge.
6. There are ______ (few) trees in the desert than in the forest.
7. The view from the top of the mountain is ______ (beautiful) of all.
8. We should protect nature to make it ______ (good) and better.
9. The wind blows ______ (soft) in spring than in winter.
10. The glacier melts ______ (fast) because of global warming.
11. The grassland becomes ______ (green) in summer.
12. The climate here is ______ (pleasant) than that in the north.
四、句型转换（每空2分，共20分）
1. The lake is big. The sea is bigger.（合并为一句）
The sea is ______ ______ the lake.
2. This waterfall is the most amazing in the world.（改为同义句）
This waterfall is ______ amazing than ______ ______ waterfall in the world.
3. It is hot today. It was hotter yesterday.（合并为一句）
Yesterday was ______ ______ today.
4. The birds sing beautifully in spring.（用than in winter改写）
The birds sing ______ ______ in spring than in winter.
5. Mount Qomolangma is the highest mountain in the world.（改为一般疑问句）
______ Mount Qomolangma ______ highest mountain 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）
Nature is full of wonders. The sky is 1. ______ (bright) than any painting on sunny days. The sea is 2. ______ (calm) at dawn than at noon. Among all the natural places, the rainforest is one of 3. ______ (amazing) ones. It has 4. ______ (many) kinds of plants and animals than other places.
The river in the forest runs 5. ______ (soft) than the river in the city. The flowers here look 6. ______ (colourful) than those in the garden. The 7. ______ (deep) you go into the forest, the 8. ______ (magic) it becomes.
We should love nature. The 9. ______ (careful) we protect it, the 10. ______ (good) it will be for us.

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