内容正文:
五一假期作业Unit2语法提升训练
一、知识必备
最高级是用于三者或三者以上进行比较,表示“最……”,即某一范围内最突出、程度最高的事物。
一、最高级的基本构成
1. 规则变化(单音节词和部分双音节词)
单音节词:一般情况下,词尾加-est。
例:tall → the tallest;small → the smallest
以不发音e结尾:词尾加-st。例:late → the latest
以“辅音字母+y”结尾:变y为i加-est。例:happy → the happiest
以重读闭音节结尾,且末尾只有一个辅音字母:双写末尾辅音字母,再加-est。例:big → the biggest;hot → the hottest
2. 多音节词与部分双音节词
用“the most + 形容词/副词”。例:the most beautiful;the most carefully
3. 不规则变化
Good/well-best bad/ill-worst many/much-most little-least
(一)形容词最高级句型
1. 主语 + be动词 + the + 形容词最高级 + 表示范围的短语(in/of/among...)
用法说明:表示主语在某个特定范围内是“最……的”,the 不可省略。
例句:The blue whale is the largest animal in the world.
蓝鲸是世界上最大的动物。
2. 主语 + be动词 + one of + the + 形容词最高级 + 可数名词复数 + 表示范围的短语
用法说明:表示主语是某一范围内“最……的之一”,one of 后必须接复数名词。
例句:
Tigers are one of the most dangerous animals in the world.
老虎是世界上最危险的动物之一。
3. 主语 + be动词 + the + 序数词 + 形容词最高级 + 名词 + 表示范围的短语
用法说明:表示主语在范围内是“第几……的”。
例句:The bear is the third biggest animal in the zoo.
熊是这个动物园里第三大的动物。
(二)副词最高级句型
主语 + 实义动词( + the) + 副词最高级 + 表示范围的短语(in/of/among...)
用法说明:表示主语在某个范围内做动作时“最……”。副词最高级修饰动词,the 可加可不加。
例句:
1. The bees work (the) hardest in the garden.
蜜蜂在花园里工作最努力。
2. He speaks English most fluently in our class.
他在我们班说英语最流利。
一、刷刷能力
Ⅰ 用方框中所给单词的适当形式填空
wing, weigh, Africa, warm, land
1. It's true that home is the ______ place wherever we go.
2. The ______ elephant is usually larger than the Asian elephant.
3. The butterfly's ______ are so colourful that it attracts many children.
4. The new suitcase ______ a lot even when it is empty.
5. After a long time flight, the plane finally ______ safely yesterday.
Ⅱ 根据汉语意思完成下列句子(每空一词)
6. 他是世界上最好的歌手之一。
He is ______ ______ ______ ______ ______ all over the world.
7. 这本书比其他任何书贵,但是它是其中最好的。
This book is ______ ______ ______ any other one, but it is ______ ______ of all.
8. 每周末,他喜欢在越秀公园散步。
Every weekend, he likes ______ ______ ______ ______ in Yuexiu Park.
9. 北极熊的体重可达 800 千克。
Polar bears can ______ ______ ______ 800 kilograms.
Ⅲ 按要求完成下列句子(每空一词)
10. The red jacket is more expensive than the other two. (改为同义句)
The red jacket is ______ ______ ______ of the three.
11. The monkey jumps higher than the lion. The tree frog jumps higher than the monkey. (用最高级改写句子)
The tree frog jumps ______ ______ ______ the three.
12. Tigers don't run as fast as cheetahs. (改为同义句)
Cheetahs run ______ ______ tigers.
13. I think maths is more difficult than any other subject. (改为同义句)
I think maths is ______ ______ ______ ______ subject of all.
语法填空,阅读下面短文,在空白处填入一个适当的单词或括号内单词的正确形式。
Elephants are one of the biggest mammals in the world. There are two kinds of elephants, the 1.______ (Africa) elephants and the Asian elephants. The main 2.______ (different) between them is that the Asian one has much 3.______ (small) ears. The African elephant uses its bigger ears 4.______ (cool) during the summer. The elephants use their feet to feel the vibrations (震动) 5.______ the ground.
One elephant has two tusks (长牙). They can be as long as 2 metres. An adult elephant reaches 3 to 4 metres—many times taller than a baby one. And an adult elephant 6.______ (weigh) about 5,000 kg. Adult elephants spend 15 to 18 hours a day 7.______ (eat) 250 to 300 kilos of food. Elephants can live up to about 70 years.
8. ______ (they) eyesight (视力) is very poor. 9.______ don't be upset with them. The elephant has 10.______ biggest brain among the mammals on land!
参考答案
Ⅰ 用方框中所给单词的适当形式填空
1. warmest 2. African 3. wings 4. weighs 5. landed
Ⅱ 根据汉语意思完成下列句子
6. one of the best singers
7. more expensive than; the best
8. going for a walk
9. weigh up to
Ⅲ 按要求完成下列句子
10. the most expensive
11. the highest of
12. faster than
13. the most difficult
语法填空
1. African
2. difference
3. smaller
4. to cool
5. on
6. weighs
7. eating
8. Their
9. But
10. the
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