新版八年级上册英语第一至三单元知识点Unit1 Where did you go on vacation?1.on vacation度假vacation意为“假期、假日”，相当于holiday，但vacation表示长的假期。
如：the long vacation 长假the summer vacation 暑假the Christmas vacation 圣诞假期而holiday（尤其美国）指“假日；休息日；休假”。
on vacation = on holiday 意为“度假”2. anything interesting 一些有趣的东西1）something，anything，nothing，everything是指物的不定代词。
somebody，someone，anybody，anyone，nobody，everybody，everyone是指人的不定代词。
somewhere，anywhere，nowhere，everywhere是指地点的不定代词。
2）当形容词修饰something, anything, nothing, everything等不定代词时，放在这些词的后面；3）这些不定代词做主语时，谓语动词用第三人称单数。
如：Is everybody here? 大家都到齐了吗？4）something，somebody，someone，somewhere用于肯定句及表示请求或建议的疑问句中，而anything，anybody，anyone，anywhere用于否定句及疑问句中。
如：Did you do anything interesting? 你做了有趣的事吗？（表疑问）Why don’t you visit someone with me? 你为什么不跟我一起去拜访下某个人呢？（表建议）3.buy sth. for sb. 或buy sb. sth如：My parents often buy some books for me. = My parents often buy me some books.我父母经常给我买书。
4.提建议的句子：①What/ how about +doing sth.? 如：What/ How about going shopping?②Why don’t you + do sth.?如：Why don’t you go shopping?③Why not + do sth. ? 如：Why not go shopping?④Let’s + do sth. 如：Let’s go shopping⑤Shall we/ I + do sth.?如：Shall we/ I go shopping?5.long time no see 好久不见6.quite a few 相当多a few 与a little 的区别，few 与little 的区别⑴a few 一些修饰可数名词a little 一些修饰不可数名词两者都表肯定意义如：He has a few friends. 他有一些朋友。
There is a little sugar in the bottle. 在瓶子里有一些糖。
⑵few 少数的修饰可数名词little 少数的修饰不可数名词但两者都表否定意义如：He has few friends. 他没有几个朋友。
There is little sugar in the bottle.在瓶子里没有多少糖。
7.most of … …的大多数如：most of the time 大多数时间8.Still no one seemed to be bored. 仍然没有人感到烦闷。
1）seem意为“好像；似乎；看来”，是个连系动词，构成的短语有：seem to do sth. 好像做某事如：They seem to talk in class. 他们似乎上课说话。
seem（to be）+adj. 似乎...... 如：He seemed ( to be) ill yesterday. 昨天他似乎病了。
It seems that + 从句似乎...... 如：It seems that he was ill yesterday. 昨天他似乎病了。
2）bored 作形容词，意为“烦闷的；厌倦的”其主语是某人；而boring 也是形容词，其主语是某物。
如：①My parents ask me to do homework all day. I feel bored.我父母整天叫我做作业，我感到很厌倦。
②Doing homework all day is a little boring. 整天做作业有点无聊。
相类似的词语还有：interested adj. 感兴趣的interesting adj. 有趣的surprised adj. 感到惊奇的surprising adj. 惊奇的tired 累的tiring 令人疲惫的excited 兴奋的exciting 令人兴奋/激动的amazed 惊讶的amazing 令人惊讶的9. 辨析：get to/reach/arrive牢记：相同点：都是“到达“的意思不同点：get to+地点/reach+地点arrive at+小地点（车站等）/arrive in+大地点（国家等）注意：若他们后面要加地点副词here,there,home等，则不需要加介词。
10. enjoy doing sth .喜欢做…乐意做… 如：She enjoys playing football. 她喜欢踢足球。
enjoy oneself 过得愉快如：He enjoyed himself. 他过得很愉快。
跟它意思相近的词组还有have a good \ great time , have fun。
11. decide 意为“决定”，是动词。
它的名词形式为decision。
构成的短语有：decide to do sth.decide on doing sth. 决定做某事make a decision to do sth.决定不要做某事，要用decide not to do sth.。
如：Li Lei has decided to go to Beijing . 李雷已经决定去北京。
12.nothing...but...意为“除......之外；只有”，如：I have nothing to do but watch TV all day long. 我整天除了看电视什么也没干。
13 .feel like意为：“有什么感觉；感受到”，后跟宾语从句。
另外，构成短语feel like doing sth.意为“想做某事”。
如：I felt like I was a bird. 我感觉我是一只鸟。
I feel like eating.我想吃东西。
14. because of , because：名词/代词/名词性短语I had to move because of my job. 因为工作的原因我得搬家。
从句如：I do it because I like it.我做这件事是因为我喜欢。
15. below意为“在......下面”，其反义词为above，意为“在......上面”16. bring sth.to +地点，意为“带来”，其反义词是take。
如：Please bring your book to our school. 请把你的书带到我们学校来。
Please take your book to your school. 请把你的书带到你的学校去。
17.enough 足够如：beautiful enough足够漂亮enough food 足够食物enough to 足够…去做…如：I have enough money to go to Beijing. 我有足够的钱去北京。
She is old enough to go to school. 她够大去读书了。
18. so … that如此…以致于引导结果状语从句，so后面接形容词、副词. that 后面跟从句。
如：She was so sad that she couldn’t say a word. 她悲伤得一句话也说不出来。
19. taste good尝起来很好吃。
taste系动词用法“尝起来”后+形容词。
其他表示状态的系动词有：feel（觉得）keep（保持）stay（保持）seem（好像）look（看来像……）smell（闻起来）sound（听起来……）taste （尝起来……）系动词与形容词连用I feel sick。
我感到难受。
Keep quiet，please！请安静下来！The weather stays very hot。
天气非常热。
He seems very clever。
他好像很聪明。
Jim looks like his father。
吉姆长得像他父亲。
The fish smells terrible. 这鱼闻起来坏了。
That sounds a good idea。
那听起来是个好主意。
The soup tastes very delicious。
这汤尝起来非常香。
Unit2 How often do you exercise?1. exercise的用法v/n1）动词，锻炼，既可以作不可数名词“锻炼”讲，也可作可数名词“练习”讲。
He exercises every day。
We often do / take exercise on weekends.2）do morning exercises 做早操do eye exercises 做眼保健操Doing morning exercises is good for our health. 做早操对我们的健康有益。
2．No, I never go shopping. 不，我从不购物。
（1）go shopping 意为“去购物”。
Go+ v. Ing 形式表示进行某项活动。
如：Go swimming/ shopping/skating/skiing/fishing/climbing/hiking 去游泳/购物/滑冰/滑雪/钓鱼/爬山/徒步旅行。
（2）never为频率副词，意思是“从不”。
【辨析】：频率副词always, usually, often, sometimes, hardly ever, never3. —How often do you watch TV? 你多久看一次电视？—Twice a week. 一周两次。
（1）how often表示“多久一次”，是对动作的频率进行提问。