A.need的用法
●表示“需要”时为实意动词,后面可以加名词,也可以加不定式:
I need a pen.
Do you need any beer? No, I don’t.
I need to have a rest.
Need doing=need to be done(表示被动)
The flowers need watering. =The flowers need to be watered. 花需要浇水。
● need在否定时做情态动词使用:
You needn’t go so early.=You don’t need to go so early.
Must I clean the desk right now? No, you needn’t.
B.简单句
由一个主语(或并列主语)和一个谓语(或并列谓语)所构成的句子叫简单句,其结构是主语+谓语。
1. 主语+谓语
主语+不及物动词:They are dancing.
2. 主语+系动词+表语
系动词to be:We are students.
系动词为turn, get, become, look:
Things become complicated.
The leaves are turning yellow.
You will get older.
3. 主语+谓语+宾语
主语+及物动词+宾语:He loves sports.
主语+不及物动词+介词/副词+宾语:She picks up the coin.
主语+动词+to do作宾语:I prefer to take a walk.
主语+动词+doing作宾语:We like having a party.
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