小學30個語法點 Unit 25 陳述句
- Unit 25 陳述句
- 語法講解
- 巧學妙記
- 語法練習
- 答案
陳述句是用來說明一個事實或表明說話人的看法。陳述句的末尾用句號，朗讀時一般用降調(diào)。陳述句分為肯定句式和否定句式。陳述句要用正常語序。
肯定句
1．主語＋系動詞＋表語
He is a teacher. 他是名老師。
2．主語＋實義動詞＋其他
Lily dances well. 莉莉跳舞跳得很好。
3．主語＋情態(tài)動詞＋動詞原形＋其他
Mary can speak Japanese. 瑪麗會說日語。
4．主語＋助動詞will/have/has/had ＋動詞原形／過去分詞＋其他
They will go abroad next year. 他們明年要出國。
否定句
1．主語＋be 動詞＋not ＋其他
These are not my pencils. 這些不是我的鉛筆。
2．主語＋do/does/did ＋not ＋動詞原形＋其他
I don't like singing. 我不喜歡唱歌。
3．主語＋助動詞will/have/has/had＋not ＋動詞原形／過去分詞＋其他
I won't go to work tomorrow. 我明天不去上班。
4．主語＋情態(tài)動詞＋not ＋動詞原形＋其他
She can't play the piano well. 她鋼琴彈得不好。
由肯定句變否定句的方法
1．找原句的動詞。若動詞為等，直接在動詞后加am ，is ，are ，can ，must ，will 等，直接在動詞后加not 變否定。若動詞為want ，like 等實義動詞，要借助助動詞don't 或doesn't 放在原句動詞之前變否定句（原句動詞為單三形式用doesn't ，其他形式用don't ）。
2．原句其他單詞位置不變。
I am a teacher. I am not a teacher. 我是一名教師。我不是一名教師。
Mary likes apples. Mary doesn't like apples. 瑪麗喜歡蘋果?，旣惒幌矚g蘋果。
have在表示“有”時，其否定形式有兩種，一種是在后面加not，一種是利用do的形式。
I haven't any time to play football.
I don't have any spare time to play football.
我沒有時間踢足球。
一、連詞成句，注意大小寫和標點符號。
1．plays/he/basketball/.
________________________________
2．he/runs/./fast
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3．the/./train/at seven/leaves
________________________________
4．is/Mary/nurse/./a
________________________________
5．./she/piano/the/play/can
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二、讀一讀，選擇單詞將句子補充完整。
1．My father is a __________. A．swim
2．He can __________ well. B．terrible
3．I have been to __________. C．doctor
4．The soup tastes __________. D．tomorrow
5．We won't go to the park __________. E．America
三、把下列句子變成否定句。
1．She is a teacher.
2．I have a baseball.
3．I have been to Japan.
4．We like to play computer games.
5．He can skate.
一、1．He plays basketball.
2．He runs fast.
3．The train leaves at seven.
4．Mary is a nurse.
5．She can play the piano.
二、1．C
2．A
3．E
4．B
5．D
三、1．She isn't a teacher.
2．I don't have a baseball.
3．I haven't been to Japan.
4．We don't like to play computer games.
5．He can't skate.
