always(总是) > usually (通常) > often(经常) > sometimes(有时) > hardly ever(很少) > never(从不)
once a week 一周一次(“一次”用特殊词 once) twice a day 一天两次(“两次”用特殊词 twice)
three times a month 一个月三次(三次或三次以上用 基数词 + times 的结构构成)
four times a year 一年四次 how often 多久一次 how long 多久 how soon 还有多久 how far 多远 as for 至于；关于 how many 多少（针对可数名词） how much 多少（针对不可数名词）of course = sure 当然；确信 look after = take care of = care for 照顾；照看 every day 每一天 everyday 日常的 a lot of = lots of = plenty of 许多；大量 hardly ever 几乎不 be good for 对……有益 be good for one's health 有益健康 try to do sth. 尝试做某事 get good grades 取得好成绩 help sb. [to] do sth. 帮助某人做某 kind of 有点 want [sb.] to do sth. 想要（某人）做某事 keep in good health = keep healthy 保持健康
Unit 2 What's the matter?
重点句型 What’s the matter? I’m not feeling well. You should lie down and rest. Should为情态动词，表应该。（附：情态动词的用法） Maybe you should go to the dentist. Maybe 副词，放句首 may be 则是情态动词may+动词原形，位于句中。
重点词汇及短语： have a cold 患感冒 shouldn't = should no be stressed out 紧张的；有压力的
a few 有些；几个（针对可数名词 a little [bit] 有些；几个（针对不可数名词） few和 little表示几乎没有 many 修饰可数名词 much 修饰不可数名词 at the moment 此刻；现在（注意时态用进行时）
What's the matter? = What's wrong? = What's the problem? 怎么了？ lie down and rest 躺下休息 see a doctor 看病 hope to do sth. 希望做某 hope sb ○to do sth希望某人做某事 listen to 听 hear 听见 for example 举个例子 be good for 对……有益
get tired 感到疲倦 stay healthy 保持健康 give sb. sth. = give sth. to sb. 把某物给某人 （同样用法的还有show , send , pass ） need to do sth. 需要做某事 need doing 需要被做 need还可以在疑问句和否定句中作情态动词。在陈述句中则为实义动词。如Need I finish all my homework? You need to do some of them.
it's + adj. +(for sb)+ to do sth. 做某事（对某人来说）……（加形容词）= doing sth is + adj + (for sb)
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