Unit 2 语法易错+巩固练习(导学案)四年级英语寒假自学课(冀教版三起·新教材)
冀教版三起四年级寒假自学课
Unit 2 语法易错+巩固练习
语法点拨
1.名词单复数
(1)教材原句:This is a panda. It’s cute.(这是一只熊猫。它很可爱。)
These are monkeys. They like bananas.(这些是猴子。它们喜欢香蕉。)
(2)变化规则:一般情况:直接加 - s(如 tiger→tigers、lion→lions)。
以 s、x、ch、sh 结尾:加 - es(如 fox→foxes、bus→buses)。
特殊变化:sheep→sheep(单复数同形)、mouse→mice(特殊变形)。
(3)用法:描述单个动物用单数,多个动物用复数;搭配 this/that(单数)、these/those(复数)使用。
(4)例句:-What’s that?(那是什么?)-It’s an elephant.(它是一头大象。);
-What are these?(这些是什么?)-They are zebras.(它们是斑马。)
知识演练
一、用所给词的适当形式填空。
1.Look at the ______(panda). It’s black and white.
2.There are three ______(tiger)in the zoo. They are strong.
3.______(sheep)like to eat grass. We can see many on the farm.
4.I see two ______(fox)in the forest. They have big tails.
5.-What are those?-They are ______(monkey). They are jumping.
语法点拨
2.描述动物特征
(1)教材原句:The giraffe is tall.(长颈鹿很高。)The elephants are big.(大象很大。)
(2)句式结构:单数动物:动物名称(单数)/ It + is + 特征形容词.
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复数动物:动物名称(复数)/ They + are + 特征形容词.
(3)常用特征形容词:cute(可爱的)、strong(强壮的)、small(小的)、tall(高的)、big(大的)、fast(快的)。
(4)例句:-How is the rabbit?(这只兔子怎么样?)-It’s small and cute.(它又小又可爱。);-How are the horses?(这些马怎么样?)-They are strong and fast.(它们又强壮又快。)
知识演练
一、用 is/are 填空,补全句子
1.The panda ______ black and white. It ______ very cute.
2.The lions ______ the kings of the jungle. They ______ strong.
3.That bird ______ small. Its wings ______ colorful.
4.These zebras ______ black and white. They ______ not tall.
5.The elephant ______ big. Its nose ______ long.
语法点拨
3.现在进行时
(1)教材原句:Look! The monkey is climbing the tree.(看!这只猴子正在爬树。)
The birds are singing in the sky.(鸟儿们正在天空中唱歌。)
(2)句式结构:肯定句:主语 + am/is/are + 动词 - ing(+ 其他).
否定句:主语 + am/is/are + not + 动词 - ing(+ 其他).
一般疑问句:Am/Is/Are + 主语 + 动词 - ing(+ 其他)?
(3)用法:用于描述动物正在发生的动作,常搭配 Look!(看!)、Listen!(听!)等提示词;主语单数用 is,复数用 are。
(4)例句:-Is the tiger running?(这只老虎正在跑吗?)
-No, it isn’t. It’s sleeping.(不,它没有。它正在睡觉。)
知识演练
一、用所给词的适当形式填空。
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1.Look! The bird ______(fly)in the sky.
2.The rabbits ______(eat)carrots now. They like carrots very much.
3.-______ the lion ______(sleep)in the cave?-Yes, it is. Don’t disturb it.
4.The monkeys ______(not climb)the tree. They ______(play)on the ground.
5.Listen! The parrots ______(sing)songs. They are so clever.
重难点特训
一、根据图片提示,写单词补全旅行计划。
1.It's ________ in Shanghai today.
2. Today it is________.We can take a boat on the Bund(外滩).
3. It is a _______ day. Let's go to the Oriental Pearl Tower(东方明珠塔).
4. I'm wearing a pair of _______ now.
5.I like to wear a beautiful _______ on Sunday.
二、选择合适的选项完成句子。
( )1._______ the stars in the sky. That's amazing!
A. Look B. See C. Look at
( )2. Today it is very cold. We wear ________.
A.glove and scarf B.gloves and scarf C.gloves and scarves
( )3. The snow is coming.I have to _______ a coat to keep warm.
A.to wear B.wear C.wearing
( )4. ______ an amazing picture!
A. What B.It C. They are
( )5.We wear raincoats and boots ______ rainy days.
A. in B. at C.on
三、选择合适的句子补全对话。
Huahua: Hi, Diandian. This is Huahua.1._______
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