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Unit 4 Eat Well
语法专题（一般现在时表饮食习惯/情态动词can/名词单复数）
一、核心语法 —— 知识点精讲（学生必背）
1. 一般现在时表饮食习惯（核心必考）
用法：表示经常性、习惯性的饮食动作或饮食偏好，贴合本单元“健康饮食”主题（描述日常饮食、饮食喜好）。
标志词：every day, every meal, usually, often, always, never, sometimes, every morning
结构：
肯定：主语（三单） + 动词-s/-es + 其他；主语（非三单） + 动词原形 + 其他
否定：主语（三单） + doesn’t + 动词原形 + 其他；主语（非三单） + don’t + 动词原形 + 其他
疑问：Does + 主语（三单） + 动词原形 + 其他？ / Do + 主语（非三单） + 动词原形 + 其他？
动词-s/-es变化规则（贴合本单元饮食类词汇）：
1. 一般 + s：eat → eats, drink → drinks, like → likes
2. 以s, x, ch, sh, o结尾 + es：watch → watches, do → does
3. 以辅音字母 + y结尾，变y为i + es：study → studies, try → tries
例句（贴合单元话题）：
① I eat eggs and milk for breakfast every morning.（非三单肯定句：我每天早上吃鸡蛋、喝牛奶当早餐。）
② She doesn’t like spicy food.（三单否定句：她不喜欢辛辣食物。）
③ —Do you drink juice every day —No, I don’t.（非三单疑问句及回答：你每天喝果汁吗？不，我不喝。）
2. 情态动词can的用法（重点必考）
用法：表示“能、会”（表能力），或“可以”（表请求、允许），贴合本单元饮食场景（询问能否吃/喝某物、表达会做某种食物）。
标志词：can, can’t, can I...
结构（所有主语通用，无变化）：
肯定：主语 + can + 动词原形 + 其他
否定：主语 + can’t （can not的缩写） + 动词原形 + 其他
疑问：Can + 主语 + 动词原形 + 其他？ （回答：Yes, 主语 + can. / No, 主语 + can’t.）
例句（贴合单元话题）：
① I can make a fruit salad.（肯定句：我会做水果沙拉。）
② He can’t eat too much sweet food.（否定句：他不能吃太多甜食。）
③ —Can I have some bread —Yes, you can.（疑问句及回答：我可以吃一些面包吗？是的，你可以。）
3. 饮食类名词单复数（易错重点）
用法：表示饮食类物品的数量，单数表示“一个/一份”，复数表示“多个/多份”，贴合本单元饮食主题。
变化规则（贴合本单元词汇，必考3条）：
1. 一般 + s：apple → apples, banana → bananas, egg → eggs
2. 以s, x, ch, sh结尾 + es：tomato → tomatoes, potato → potatoes
3. 不可数名词（无复数）：rice, milk, juice, bread, water（常用some修饰）
例句（贴合单元话题）：
① I eat an apple every day.（单数：我每天吃一个苹果。）
② There are some tomatoes on the plate.（复数：盘子里有一些西红柿。）
③ I drink some milk for breakfast.（不可数名词：我早餐喝一些牛奶。）
4. 常用句型（贴合本单元饮食主题，必考）
I/We usually + 动词原形 + for breakfast/lunch/dinner.（我/我们早餐/午餐/晚餐通常吃/喝某物。）
He/She + 动词-s/-es + every meal.（他/她每顿饭吃某物。）
Can I + 动词原形 + some... （我可以吃/喝一些……吗？）
I can/can’t + 动词原形.（我会/不会做/吃某物。）
二、核心语法 —— 专项练习题（基础 + 提高）
一、用所给动词的正确形式填空
1. I __________ (eat) a bowl of rice for lunch every day.
2. She __________ (not like) vegetables. She likes meat.
3. My father __________ (drink) a cup of tea every morning.
4. —What __________ you __________ (have) for breakfast —I have bread and milk.
5. We __________ (can) make fruit salad. It’s easy.
6. He __________ (not can) eat spicy food. It’s too hot.
7. They __________ (like) apples. They eat two every day.
8. —Can you __________ (cook) noodles —Yes, I can.
9. My sister __________ (study) hard and __________ (eat) healthy food every day.
10. We __________ (not eat) too much junk food. It’s bad for health.
二、单项选择
( ) 1. —What do you eat for dinner —I __________ rice and vegetables.
A. eat B. eats C. eating
( ) 2. She __________ like milk. She drinks juice every day.
A. do B. doesn’t C. don’t
( ) 3. —Can you __________ a fruit salad —Yes, I can.
A. make B. makes C. making
( ) 4. There are three __________ on the table. They are red.
A. apple B. apples C. apple’s
( ) 5. He __________ a cup of coffee every afternoon.
A. drink B. drinks C. drinking
( ) 6. —Can I have some __________ —Yes, you can. It’s on the plate.
A. bread B. breads C. tomato
( ) 7. We __________ eat too much sweet food. It’s bad for our teeth.
A. can B. can’t C. should
( ) 8. —Does she eat eggs every morning —Yes, she __________.
A. do B. does C. can
( ) 9. They __________ tomatoes and potatoes for dinner every day.
A. eat B. eats C. is eating
( ) 10. I can __________ noodles, but I can’t cook rice.
A. cook B. cooks C. cooking
三、句型转换
1. I eat bread for breakfast.（否定句）I __________ __________ bread for breakfast.
2. She drinks juice every day.（一般疑问句）__________ she __________ juice every day
3. I can make a fruit salad.（否定句）I __________ __________ make a fruit salad.
4. He eats rice for lunch.（对划线提问）__________ __________ he __________ for lunch
5. Can you cook noodles （肯定回答）Yes, __________ __________.
6. They like apples.（否定句）They __________ __________ apples.
7. She doesn’t drink milk.（改为肯定句）She __________ __________.
8. Can I have some bread （否定回答）No, __________ __________.
四、用can/can’t, 动词原形/动词-s/-es填空
1. I __________ (eat) eggs every morning. It’s good for me.
2. You __________ (not eat) too much junk food. It’s unhealthy.
3. He __________ (drink) tea every afternoon. He doesn’t like coffee.
4. We __________ (can) make noodles. It’s easy.
5. She __________ (like) bananas. She eats one every day.
6. —__________ you cook rice —No, I can’t.
7. They __________ (not drink) juice. They drink water every day.
参考答案
一、用所给词的适当形式填空
1. eat 2. doesn’t like 3. drinks 4. do; have 5. can 6. can’t 7. like 8. cook 9. studies; eats 10. don’t eat
二、单项选择
1.A 2.B 3.A 4.B 5.B 6.A 7.B 8.B 9.A 10.A
三、句型转换
1. don’t eat 2. Does; drink 3. can not 4. What does; eat 5. I can 6. don’t like 7. drinks milk 8. you can’t
四、用can/can’t, 动词原形/动词-s/-es填空
1. eat 2. shouldn’t eat 3. drinks 4. can 5. likes 6. Can 7. don’t drink

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