1.should
作为情态动词，三种人称，单、复数通用。主要用法有：
(1)表示义务、责任，相当于汉语的“应当”。
Children should be taught to speak the truth.
应该教导儿童讲老实话。
You shouldn’t be so careless.
你不应该如此粗心大意。
(2)表示可能性、推测或推论，相当于汉语的“可能”“该”。
Grandma should be home by now，I think.
我想奶奶现在该到家了。
(3)在提出意见、请求、建议时，可用should表示委婉、谦逊的语气，相当于汉语的“可”“倒是”“想”。
I should say it would be better to try it again.
我看最好再试试。
I should like to have a talk with you.
我想跟你谈一谈。
I should think so.
我可也是这么想的。
13. on the other hand 另一方面。经常与on (the) one hand一起连用。表示一方面……另一方面……。
如： On one hand we should study hard , on the other hand we should keep
healthy .
我们一方面要努力学习，另一方面应该保持身体健康。
12. Traditional Chinese doctors believe we need a balance of cooling yin and hot
yang to be healthy .
传统中医认为我们需要通过阴阳调和来保持健康。
其中a balance of……平衡
keep a balance of保持一个……平衡
如keep a balance of nature保持自然(生态)平衡。
be healthy，keep healthy，stay healthy都是保持健康的意思。
healthy是个形容词，其名词形式为health .
11.should, shouldn’t
should
是一个情态动词，意思是“应该，应当”，表示建议，它用于所有人称，其后接动词原形，否定形式是在其后加not,也可以缩写为shouldn’t,变为一般疑问句时should提到主语的前面。
We should study hard.我们应该努力学习。
We shouldn’t listen to music in class.我们不应当课上听音乐。
10. a few 有些，几个(表示肯定)用于修饰可数名词复数形式。a little = a bit of一些(表示肯定)用于修饰不可数名词。
few 和little少许，几乎没有(表示否定)，分别用于修饰可数名词复数形式和不可数名词。
There are a few books on the desk.桌子上有一些书。
There are few books on the desk.桌子上几乎没有书。
There is a little milk in the glass.=There is a bit of milk in the
glass.杯子里有一些牛奶。
There is little milk in the glass.杯子里几乎没有牛奶。
另外，a little, a bit 和 kind of 还可以修饰形容词和副词。
I’m a little/ a bit/ kind of tired. 我有些累了。
9.I have a headache= I have an ache in my head.= My head aches.我头痛。
He has a sore back.= He has a pain on his back. = He has a backache. 他后背痛。
注意：ache常指连续性的疼痛；sore常指因发炎而引起的肌肉疼；pain常指肉体上的剧烈疼痛。
8.What’s the matter with…?= What’s the trouble with…?=
What’s wrong with…? ……怎么了？
What’s the matter with you/ Lily/ your bike/ your ear…?
=What’s the trouble with you/ Lily/ your bike/your ear…?
= What’s wrong with you/ Lily/your bike/your ear…?
你/ Lily/你的自行车/你的耳朵……怎么了？
There is something wrong with ….=Something is wrong with …
……有毛病/出了问题。
There is something wrong with my bike/Lily’s back…= Something is wrong with my
bike/Lily’s back…
我的自行车/ Lily的后背出了毛病/有问题……
Is there anything wrong with your bike/Lily’s back…?
你的自行车/ Lily的后背……出问题了吗？
There is nothing wrong with my bike/ Lily’s back…
我的自行车/ Lily的后背……没有出毛病。
7. How to talk about our health .
①问某人哪儿不舒服。
When we are not feeling well , we often go to see the doctor . The doctor will ask :
What’s wrong (with you) ?
What’s the matter (with you) ?
What’s your trouble ?
What happens to you ?
(Is there) anything wrong with you ?
都表示“你怎么了?”
②叙述病情。
There is something wrong with my tooth . 我的牙出问题了。
Doctor , I’m not feeling well . 我感觉不好，医生。
I feel terrible . 我感觉糟透了。
I feel very ill . 我感觉病得很重。
This place hurts . (I’ve got a pain here) 这个地方疼。
My leg hurts . 我腿疼。
I don’t feel like eating . 我不想吃东西。
I have a cold . 我感冒了。
I have a fever . 我发烧了。
I have a headache . 我头疼。
③处置或提出建议：
1)Open your mouth , please . 张开嘴。
I want to take your temperature . 我想测测你的体温。
2)Take this medicine three times a day . 这个药一天吃三次。
3) Take three pills before you go to bed . 睡前服用三片。
4) You’d better stay in bed till tomorrow . 最好卧床休息到明天。
5) Drink lots of water and have a good rest . 多喝水，好好休息。
6) You should lie down and rest . 卧床多休息。
7) You should drink hot tea with honey . 你应该喝加蜂蜜的热茶。
8) You should see a dentist . 你应该去看牙医。
9) You should go to bed early . 你应该早点上床(休息)
6．Then ask classmates for advice.
向你的同学征求建议。(请你的同学提出建议)
advice意为“建议，忠告”，是不可数名词。
一条建议 a piece of advice
两条建议 two pieces of advice.
一些建议 some advice
与advice搭配构成短语的有：
ask sb. for advice 请……提出建议
give sb. advice 给……提出建议
take one's advice 采纳某人的建议
refuse one's advice 不听某人的劝告、忠告
“有关……的建议”应用advice on /about sth.
e.g. I'll give you a piece of advice on how to learn English well.
我将给你一条关于如何学好英语的建议。
5．Do you have a cold?
你感冒了吗？
cold在这里是名词，意为“感冒”。
患感冒：have a cold, catch (a) cold, get a cold.
cold还可用作形容词，意为“冷的，寒冷的”。
e.g. It's so cold today that I have a cold. 今天太冷了，我都感冒了。
※第一个cold是形容词，第二个cold是名词。