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Unit3单元语法小专题整理
语法精讲
一、名词性物主代词
定义：名词性物主代词可独立使用，相当于“形容词性物主代词 + 名词”，其后不能再接名词。
例：
Is it yours （yours = your jacket）
Hers is in her bag.（hers = her ruler）
形式：
人称 单数 复数
第一人称 mine（我的） ours（我们的）
第二人称 yours（你的） yours（你们的）
第三人称 his（他的）
hers（她的）
its（它的） theirs（他们的/她们的/它们的）
用法：
作主语：谓语动词的单复数与所指对象一致。
例：Hers is in her bag.（谓语动词用单数）
作表语或宾语：
例：
Is this ruler yours or hers （作表语）
I find a jacket. Is it yours （作宾语）
二、频度副词
表示具体频率：
一次：once（例：once a week）
两次：twice（例：twice a month）
三次及以上：基数词 + times（例：three times a day）
表示不确定频率（从高到低排序）：
always > usually > often > sometimes > seldom/hardly ever > never
位置规则：
实义动词前：He often plays football.
be动词/助动词/情态动词后：I am always busy.
句首（强调时）：Sometimes he gets up at 5:30 a.m.
提问方式：
How often… （例：How often does Lisa go to the library ）
语法精练
一、单项选择
— Is this water bottle ______
— No, it’s not mine. It’s ______.
A. your; her B. yours; hers C. your; hers
How ______ does your brother exercise
— He plays basketball three ______ a week.
A. often; times B. long; time C. many; times
______ schoolbag is this It looks like Tom’s.
A. Who B. Whose C. What
My sister ______ goes to bed late. She always sleeps before 10 p.m.
A. never B. sometimes C. usually
— ______ do you eat vegetables
— Every day. They are good for health.
A. How many B. How often C. How long
The red bike is ______. I bought it yesterday.
A. my B. mine C. me
They do morning exercises ______ a week, from Monday to Friday.
A. once B. twice C. five times
Look at the shoes. Are they ______
— No, ______ are in the box.
A. your; mine B. yours; my C. yours; mine
Lucy ______ forgets to drink enough water. She keeps a bottle with her.
A. always B. seldom C. never
— Is this blue jacket ______
— No, it’s not ______. Maybe it’s Lily’s.
A. your; mine B. yours; my C. yours; mine
二、用所给词的正确形式填空
This is not ______ (I) notebook. It’s ______ (she).
How ______ (often) do you eat fruit — ______ (two) a day.
The black umbrella is ______ (he), and the yellow one is ______ (we).
My parents ______ (always) take a walk after dinner.
— Are these gloves ______ (you)
— No, they’re ______ (they).
Tom ______ (hardly ever) eats junk food. He likes vegetables.
The football is not ______ (we). It’s ______ (they).
______ (she) brother plays basketball ______ (three) a week.
How ______ (often) does your sister go swimming — Once ______ (a) month.
10.The new bike is ______ (my). The old one is ______ (your).
11.These books are ______ (our). Please put ______ (they) on the shelf.
12.My dad ______ (never) drinks coffee. He prefers tea.
13.— Whose shoes are these
— They’re ______ (he).
14.We have P.E. class ______ (two) a week.
15.The green water bottle is ______ (she). The blue one is ______ (I).
三、短文语法填空
短文一
Hello! I’m Lisa. I want to share my healthy habits. I ______ (always) get up at 6:30 a.m. First, I drink a glass of water. Then I do morning exercises ______ (one) a day. My breakfast is ______ (I) favorite meal. I ______ (usually) eat eggs and milk. How ______ (often) do I eat snacks Only ______ (two) a week! My water bottle is pink. It’s ______ (my), and my brother’s is blue. ______ (he) likes sports too. We play badminton ______ (three) a week. Remember: Keep ______ (health)!
短文二
Tom and Mike are good friends. They love sports. Tom ______ (always) runs in the morning. Mike plays basketball ______ (two) a week. Their soccer balls are in the gym. The red one is ______ (Tom), and the white one is ______ (Mike). How ______ (often) do they eat fast food ______ (Never)! They ______ (usually) have salads. Their water bottles are on the table. The big one is ______ (they), and the small one is ______ (we). Let’s ______ (join) them to keep fit!
参考答案
（1）一、单项选择
1-5: BABAB 6-10: BCCCC
（2）二、用所给词的正确形式填空
my; hers 2. often; Twice 3. his; ours 4. always 5. yours; theirs
hardly ever 7. ours; theirs 8. Her; three times 9. often; a 10. mine; yours
ours; them 12. never 13. his 14. twice 15. hers; mine
（3）三、短文语法填空
短文一
always, once, my, usually, often, twice, mine, He, three times, healthy
短文二
always, twice, Tom’s, Mike’s, often, Never, usually, theirs, ours, join

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