语法小结
1、第一单元主要学习的时态是过去时。
（1）一般过去时态，表示过去某个时间发生的动作或存在的状态，常与表示过去的时间状语连用，如“yesterday”、“last month”、“ten minutes ago, in 2004”等
Eg: I went to the 200 last week.
（2）一般过去时还可表示过去的习惯性动作，常用“used to”表达，意为“过去常常”。
Eg: I used to go to school on foot.
(3)通过上下文判断动作发生在过去的，也用过去时。
A: Where did you go?
B: I went to my uncle’s.
2、一般过去时的肯定句、否定句和疑问句的构成。
(1)肯定句：主语+动词过去式。
Eg: She was a student ten years ago.
(2)否定句：主语+was/were+not或主语+didn’t+动词原形。
Eg: They weren’t here just now.
Tim didn’t play soccer yesterday afternoon.
(3)一般疑问句：was/were+主语+…或Did+主语+动词原形+……？
Eg: Were you at home yesterday?
Did she go shopping last weekend?
(4)特殊疑问句：特殊疑问句+一般疑问句？
Eg: When did you go to the park?
What did they do last night?
3、动词过去式的构成。
(1)规则变化。
①一般情况在动词的词尾加ed.
play—played work—worked
②以不发音字母e结尾的在词尾加d.
like—liked practice—practiced
③末尾只有一个辅音字母的重读闭音节词，双写这个辅音字母再加ed.
stop—stopped plan—planned
④以辅音字母加y结尾的动词变y为i再加ed.
study—studied worry—worried
(2)不规则变化见教材后面的动词表。
4、不定代词和副词的用法。
(1)不定代词有表示人的，如“everyone, anyone”等有表示物的，如“everything, nothing”等。
特别强调的是形容词修饰不定代词时要放在不定代词的后面。
Eg: someone special
anything interesting
(2)副词“somewhere, anywhere”等的用法同样有形容词修饰时必须放后面，前面不能加介词。
Eg: somewhere warm
She doesn’t like living anywhere noisy.
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