how often,“多久一次”，常用于对时间频率的提问。

(一天一次)，once times a day,

(一天两次)，twice times a day,

(一天三次)，three times a day,

(有时)，sometimes,

(从不)，never,

(经常)very often,

你多久看一次电视？How often do you watch TV?,

你的父母多久看一次你的祖父母？How often do your parents visit your grandparents?,

how long, 多久 询问时间多久 for, 或者about, +一段时间

how often, 多久一次 询问动作的频率 often, twice a week,等

how soon, 多快，过多久 询问时间多快 in,+一段时间

how far, 多远 询问距离多远

步行十分钟。ten minutes' walk,

how many, 多少 询问可数名词数量 数词+可数名词复数

how much, 多少 询问不可数名词数量 数词+表示量的词+不可数名词  多少钱 询问价格 数词+钱

 “照顾，照看”look after,

 take care of,

我父亲病了，所以我得在家照顾他。My father is ill, so I have to look after him at home,

  她长大了，能够照顾自己了。She is old enough to look after herself,

  看look at,  

 have a look at,

  检查look over,

(在字典等)查找  look up,

寻找look for,

期待，盼望  look forward to,

环顾look around,

look,为不及物动词，后接宾语时须用介词at,  指看的动作。

see,既可做及物动词后接宾语，又可用做不及物动词，着重于看的后果，即“看到，看见”。

read多指“看书 报”，这里的“看”实为“读”，可用做及物动词或不及物动词。

watch用做及物动词，用来指非常仔细地 有目的和特意的动作，表示“注视，观看，监视”之意。也常用于“看电视，看比赛”等短语中。

“想要某人做某事”。want somebody to do something,

想让某人不要做某事want somebody not to do something,

 想要什么want something,

  想要做某事want to do something,

  她想要一杯茶。She wants a cup of tea,

  他们想要回家。They want to go home,

他想要我帮他。He wants me to help him,

want,后接动词不定式时，相当于would like,。

想要做某事want to do something,  

would like to do something,

想要某人做某事want somebody to do something,  

would like somebody to do something,

“对 有好处”be good for,

“对 有害处”be bad for,

垃圾食品对我们的健康没有好处。Junk food is not good for our health,

  吸烟对你有害。Smoking is bad for you,

“对  好”be good to,

“对  不好”。be bad to,

  她对我们很好。She is very good to us,

 那个老板对他的工人不好。The boss is bad to his workers,

be good at“在  方面擅长”，介词at,后面常接名词 代词或动词-ing形式，同义短语 do well in,  

她擅长英语和汉语。She is good at English and Chinese,

  She does well in English and Chinese,

“和  相处得好；擅于和  相处”。be good with,

  你和孩子们相处得好吗？Are you good with children?,

try为动词，意为“试图；设法；努力”。指付出一定努力去做某事。

 努力做某事， 尽力做某事try to do something,

 努力不做某事， 尽力不做某事try not to do something,

  尝试做某事try doing something,

实验  try out,

试穿(鞋 衣服等)try on,

尽某人最大努力去干  try one's best to do something,

  我尽力回答这个问题。I try to answer the question,

  他试着游过河去。He tried swimming across the river,

她正在试穿一件新连衣裙。She is trying on a new dress,

我们应尽我们最大努力学好英语。We should try our best to study English well,

try作名词，意为“尝试；试图”。

  让我试一试。Let me have a try,

“帮助某人做某事”。help somebody with something,

help somebody do something,

help somebody to do something,

他帮助我学习英语。He helps me learn English,

He helps me to learn English,

He helps me with my English,

在某事上帮助某人help somebody with something,

我的数学老师在数学上帮助我。My maths teacher helps me with my maths,

在   的帮助下 with one's help,   

 with the help of,

在玛丽的帮助下，我在英语学习方面进步很快。With Mary's help, I made rapid progress in English learning,  

 With the help of Mary, I made rapid progress in English learning,

“和  一样,相同”the same as,

我和我的妹妹在同一所学校。I am in the same school as my younger sister,

“与  不同”  be different from,

说一件事和做一件事很不相同。Saying a thing is very different from doing it,

“同  一样 ”，the same,   as,

same,是形容词，做定语，其前总有the,

 她头发的颜色和她妈妈的一样。Her hair is the same color as her mother's,

“保持健康”keep in good health,

如果你想保持健康，你应该多吃水果和蔬菜。If you want to keep in good health, you should eat more fruit and vegetables,

 health是不可数名词，意为“健康(状况)”，

“身体好”。“be in good health”,

“身体不好”。“be in poor health”

“be in bad health”,

  健康胜于财富。Health is better than wealth,

 healthy做形容词，意为“健康的”，类似的词有：windy,  cloudy, sunny, funny, snowy,等。

 Unhealthy意为“不健康的”，un-为否定前缀。

不高兴的 unhappy,

不公平的unfair,

keep是动词，意为“保持   (持续的)状态”，其后常跟形容词 副词 介词短语或动词的-ing形式。

 继续做某事keep doing something,

keep  somebody 或者 something + 形容词   使   保持某种状态

keep somebody 或者 something +介词短语 使 处于某种状态

keep somebody 或者 something from doing something 阻止，保护  不受

 反复做某事keep on doing something,

 你们应该保持安静。You should keep quiet,

他一直待在家里，因为天气太热了。He keeps at home because it is hot,

对不起，让你久等了。 I'm very sorry to keep you waiting ,

他一心想的就是不要让这男孩受到伤害。His only thought was to keep the boy from harm,

教堂的钟声使我不能入睡。The church bells keep me from sleeping,

 赶上  keep up with,

  开商店  keep a shop,

  照看keep an eye on,

kind of, 意为“有点儿，有几分”，多用于修饰形容词或副词，表程度。

  他看上去有点生气了。He looked kind of angry,

kind,还可表示“种类”。

鞋店里有各种各样的鞋。There are all kinds of shoes in the shoe shop,