内容正文:
Unit 1 Animal Friends 核心语法梳理
一、一般现在时(描述动物习性)
结构:
· 肯定句:主语 + 动词原形/动词第三人称单数 + 其他
例:Dogs like bones.(原形)
The cat sleeps all day.(三单)
· 否定句:主语 + don’t/doesn’t + 动词原形 + 其他
例:The koala doesn’t eat meat.
· 疑问句:Do/Does + 主语 + 动词原形 + 其他?
例:Do pandas live in China?
Does the snake like cold weather?
时间状语:
often(经常), usually(通常), every day(每天), sometimes(有时)
动物主题例句:
1. Elephants drink water with their trunks.
1. The lion doesn’t hunt alone.
二、There be 句型(描述动物存在)
结构:
· 肯定句:There is/are + 动物 + 地点
例:There is a panda in the zoo.
There are many fish in the river.
· 否定句:There isn’t/aren’t + 动物 + 地点
例:There isn’t a tiger in the park.
· 疑问句:Is/Are there + 动物 + 地点?
例:Is there a bird in the tree?
Are there monkeys in the mountains?
就近原则:be动词与最近的主语一致
例:There is a dog and two cats at home.
动物主题例句:
1. There are three koalas in the tree.
1. There isn’t a snake in the grass.
三、形容词比较级(比较动物特征)
规则变化:
规则
例词
直接加-er
fast → faster
以e结尾加-r
large → larger
双写辅音字母
big → bigger
改y为i加-er
happy → happier
不规则变化:
good/well → better, bad → worse, far → farther
结构:
· A + be + 形容词比较级 + than + B
例:A lion is stronger than a fox.
· Which + 动物 + is + 比较级?
例:Which animal is faster, a cheetah or a horse?
动物主题例句:
1. Dolphins are smarter than dogs.
1. The elephant’s nose is longer than the pig’s.
四、语法专项练习
练习一:一般现在时填空(30分)
1. The bird ______ (sing) every morning.
1. Lions ______ (not live) in Asia.
1. ______ the panda ______ (eat) bamboo?
练习二:There be 句型转换(30分)
1. There is a bird in the sky.(改为复数)
→ ________________________________________
1. Are there monkeys in the zoo?(否定回答)
→ ________________________________________
练习三:形容词比较级造句(40分)
1. 熊猫比熊可爱。
→ ________________________________________
1. 哪个动物更大,大象还是鲸鱼?
→ ________________________________________
答案:
练习一:1. sings 2. don’t live 3. Does; eat
练习二:1. There are birds in the sky. 2. No, there aren’t.
练习三:1. Pandas are cuter than bears.
2. Which animal is bigger, an elephant or a whale?
五、语法规则总结
1. 一般现在时:描述动物的习惯或特征,注意动词三单形式。
1. There be 句型:表示某处有某物,遵循就近原则。
1. 形容词比较级:用于动物特征比较,注意规则与不规则变化。
六、动物主题拓展
趣味知识:
· 企鹅不会飞,但游泳速度可达每小时20公里(参考素材摘要4)。
· 章鱼有三个心脏(参考素材摘要4)。
例句应用:
· Penguins swim faster than most birds.
· There are three hearts in an octopus.
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