由if, whether, 引导表示一般疑问意义，( 是否、已否、对否等)

我不知道韦华是否喜欢鱼。I don't know if Wei Hua likes fish,

I don't know whether Wei Hua likes fish ,

你知道他想要买什么吗？Do you know what he wants to buy ?,

当主句是一般现在时，从句根据情况使用任何时态

他说他在家里。He says he is at home ,

我不知道她正在唱歌。I don't know she is singing now,

她想要知道我是否已经完成了我的作业。She wants to know if I have finished my homework,

你知道他将会什么时候回来？Do you know when he will be back ?,

当主句是一般过去时，从句应使用过去某时态。( 一般过去时,过去进行时，过去将来时，过去完成时)

他说他在家里。He said he was at home,

He said that he was at home,

我不知道她正在唱歌。I didn't know that she was singing now,

她想要知道我是否已经完成了我的作业。She wanted to know if I had finished my homework,

你知道他将会什么时候回来？Did you know when he would be back ?,

 独自在家Home alone,

照顾look after,

小心（对待）be careful with,

be careful of,

 我们新来乍到，得注意自己的一举一动。We're newcomers here and must be careful with what we do,

确保make sure,

 要保证你有足够的时间为即将开始的新的一天做好准备。Make sure you have enough time to prepare for the new day ahead,

许多，大量plenty of,

 做简单的饭菜 cook simple meals,

醒；醒来 wake up,

 将要，打算做某事be about to do something,

 旅途愉快have a good trip,

两个,几个a couple of,

关掉；关闭（设备）turn off,

 开turn on,

 某人对某事感到厌烦somebody be bored with something,

somebody feel bored with something,

实现 come true,

担心be worried about,

 worry about,

出差on business,

 我到这儿来办公事。I'm here on business,

 他来找我，偏偏我出差了。 I happened to be away on business when he came to see me,

最后;终于at last,

玩得高兴have fun,

一 就 as soon as,

 匆忙做某事hurry to do something,

向某人要某物ask somebody for something,

上交 hand in,

不能做某事be unable to do something,

 感到又累又困feel tired and sleepy,

帮助某人做某事。help somebody with something,

help somebody do something,

help somebody to do something,

收拾；整理tidy up,

我真得开始收拾收拾这个地方了。 I really must start tidying the place up,

 我们把屋子拾掇一下。 Let's tidy up the room,

 计划打算做某事Plan to do something,

依靠；依赖 ;取决于depend on,

和某人道别 say goodbye to somebody,

送别某人see somebody off,

忙着做某事。be busy doing something,

be busy with something,

 为某事准备好 be ready for something,

get ready for something,

 准备好做某事be ready to do something,

get ready to do something,

 把某物准备好 get something ready,

我们必须把晚饭准备好。客人来了。We must get dinner ready,The guests are coming,

 匆忙in a hurry,

 赶快hurry up,

 意外地，偶然地by accident,

by chance,

 以后，后来 later on,

 这一点我后面再作说明。 I shall explain that later on,

 拿走，带走,take away,

他们被抓上一辆警车带走了。They were taken away in a police bus,

 把这些茶杯拿走。Take away these teacups,

 处于危险中 in danger,

整天 all day long,

 指出 point out,

他们不停地站起来拍照，还互相指点景物给对方看。They kept standing up to take pictures and point things out to each other,

 我们都太过轻易地指出母亲的缺点。 We all too easily point out our mothers' failings,

 报警call the police,

 清理 clean up,

约翰尼，进去把自己收拾干净。 Johnny, go inside and get cleaned up,

我拾掇了一下自己，把宝宝也收拾妥当。 I cleaned myself up a bit, and got the baby ready,

 与打架 fight with,

so,+be,动词或者助动词或者情态动词+主语  也是如此

 so,+形容词或者副词+that,从句  如此  以至于

 lots of,+可数名词复数或者不可数名词  许多

建议某人做某事 advise somebody to do something,

 advise doing something,

即将做某事be about to do something,

想要做某事want to do something,

 a bit,+形容词或者副词 有点

不得不做某事 have to do something,

不能做某事 be unable to do something,

设法做某事try to do something,

想让某人做某事want somebody to do something,

开始做某事start to do something,

做某事很高兴 be happy to do something,

告诉某人做某事tell somebody to do something,

学会做某事 learn to do something,

忙于做某事be busy doing something,