5、,他不能去上班了。Hewaslateasaresultoftheheavysnow.他迟到是由于大雪所导致的。Asaresultofwarning,nobodywashurt.由于得到了警告,因此没有人受伤3.needto(1)need作情态动词的用法:need用作情态动词时表“必须必要”的意思,后直接跟动词原型,且need无人称、数的变化(第三人称单数不加s),也没有非谓语形式(不定式、分词)。【注意】need用作情态动词时常用于否定句和疑问句中。例:Need he bring his laptop tomorrow? 明天他必须带他的笔记本过来吗?Come o
6、n, you needn't worry about it becuse it's not your fault. 行啦,你不必担心的因为那不是你的错。She needn’t have arrived so early, need she? 她本不必到得这么早,不是吗?【注意】must引导的一般疑问句的否定回答必须使用needn't。例如:--Must I leave? 我必须离开吗?--No, you needn't. 不,你不必离开。(2)need作实意动词的用法:①人+need + something 需要某物I need some fruits to
7、eat. 我需要些水果来吃。②人+need to do something 需要做某事You don't need to have the bike repaired right away. 你不必马上去修车。③物+need doing = need to be done 需要……The room needs cleaning = The room needs to be cleaned. 房间需要打扫了。④人+need somebody to do something 需要某人做某事I need someone to help me out of this pr