实用法宝
7A Unit 1
一般现在时 (is /am/are, do / does)的肯定、否定和疑问形式。
例：My hair is long.
Cats eat fish.
He goes to school on foot every day.
7A Unit 2
1．人称代词 —— 主格 ：I , you , he, she, it, we, they. 在句中作主语。 例： We/ I / You/ They have lunch at school. He / She/ It looks at me.
2．人称代词 —— 宾格 ：me, you, him, her, it, us, them在句中作宾语。
例： The teacher often helps us / me/ him/ her/ them.
7A Unit 3
1. 时间介词 at, on, in
2. 疑问词：what, which, who, whose, when, where, why, how
3. some, any 的用法
7A Unit 4
1． 频率副词 never, seldom, sometimes, often, usually, always
2． There be 结构表示“某个地方客观存在”。
7A Unit 5
现在进行时 is/ am/are + doing 表示正在进行的动作.
7A Unit 6
1. can , may表示“允许、可以”。
2. 顺序副词： first, then, next, afterwards, finally.
7B Unit 1
1． 方位介词：in front of, between, next to, between, opposite, on
2． 基数词：one, two, three, four,…
3． 序数词：first, second, third, fourth….
7B Unit 2
1. how much, how many.表示“多少”， 前者跟不可数名词，后者跟可数名词的复数。
2. 名词所有格: Millie‘s home, The two students‘ homes....
3. 形容词性物主代词：my, your, his , her, our, their, its
名词性物主代词：mine, yours, his, her, ours, theirs, its…
4. 定冠词the的用法: 独一无二的，前文已提到过的。
7B Unit 3
1． 动作介词： across, along, through, over, to, up, down, round, from
2． 一般将来时：will +动词原形， shall + 动词原形（但只能用于we/ I 第一人称） is/ am/ are going to + 动词原形
7B Unit 4
一般过去时的肯定、否定和疑问形式。
1． be 动词的过去式：was/ were
2． do（实义动词）的过去式分规则和不规则两类。
7B Unit 5
1． 用can/ could表示“能力”“会”。
I can speak English. I could swim when I was young.
2． 用can/ could 表示“可能”“可能性”。
I am free. I can help you. At that time, anything could happen.
3． 感叹句 What a good girl! What bad weather! How nice it is!
7B Unit 6
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