electricity-electrical-electronic conclusion-conclude reaction-react equipment-equip partial-part-partially boil-boiler steam-steamer float-floating form-formation
balance-imbalance-balanced department-depart-departure
astonished-astonishing-astonish-astonishment lecture-lecturer dissolve-solve aim-aimless
单词： 1,BALANCE:
keep/lose one’s balance保持/失去平衡 out of balance失去平衡 balance...against权衡，比较
balance A with/and B同等重视-we should balance our life and work. balanced adj.平稳的，安定的，和谐的 a sense of balance平衡感
2,EQUIPMENT:
a piece of equipment (U)
equip v.配备；装备；使有所准备；使有能力 equip...with...给……配备/装备……；使……具备…… be equipped with装备有…… be equipped for…目的
equiment-(equipment)faclities
3,CONCLUDE:
conclusion-conclude
in conclusion 总之，最后(其他的几种说法) make/draw/reach/come to/ arrive at a conclusion bring sth. to a conclusion 使…结束
4,ORDINARY:
Iron rusts in an ordinary water ordinary 一般的，平淡无奇的
common普通，大家所共知的,常见的 usual通常，经常发生或者见的事情 normal 正常的，常规的，常态的
5,FORM:
in the form of…以…的形式
water can exist in the form gas, solid and liquid.
form he habit of… 养成…的习惯 A form of…一种
inform-informative-transform-transformation-transformer-formation
6,RAACT:
react to对……作出反应/评价 The prayer reacted angrily to the decision./ react with与……起反应 Iron react with water and air to produce rust. react against 反对，对抗 reaction n.反应
课文：
7,be supposed to have done sth. 本应该做了某事(但事实上没做) be supposed to do sth.应该做某事，应当做某事，理应做某事 be not supposed to do sth.不准/不应当/不得做…… suppose v.认为；猜想，料想；想像；假定 I suppose so.我想是这样的。
I don’t suppose so.＝I suppose not.我想不是这样的。 Suppose/ Supposing that...假设……
be supposed to be doing sth.理应正在做某事
8,It is hard to think of a world without metals. It is adj. do sth.
It is adj. for/of sb. to do sth.
It is kind of you to show me the way.
It is impossible for you to do the experiment without the teacher’s help.
9,be/get/become used to doing sth.＝be accustomed to doing sth.习惯于做…… be used to do sth.被用来做某事 be used as被当作……来用 be used for被用来做……
used to do表过去常常做某事，现在不这样子了；would表示过去的一种习惯。
used to有两个否定形式和两个疑问形式。一种直接使用used；一种借助于动词did，即： 否定形式：used not to do＝use(d)n’t to do did not use to do＝didn’t use to do
疑问形式：Used＋主语＋to＋动词原形．..? Did＋主语＋use＋to＋动词原形．..?
(1)used to do sth.过去常常做某事，只表过去。
(2)be/get used to (doing) sth.习惯于……，表示过去、现在或将来，to是介词，后面跟名词、代词或动名词。
(3)be used to do sth.被用来做……，be used是被动语态，to do sth.是不定式作目的状语。 ：
(1)Used your father to drink a lot? 你父亲曾喝酒很厉害吗？ (2)Didn’t he use to drive to work? 他过去不曾开车上班吗？
(3)There used to be a stone tower near the old pine trees，usedn’t there/didn’t there? 在老松树附近曾有过一座石塔，不是吗？
10,put sth. in order out of order in good order in order to do sth. place an order in bad order keep order
资料库：
boiled water/ boiling water
astonished adj.吃惊的；惊愕的
be astonished by/at...对……感到惊讶
be astonished to do sth对做某事感到惊讶 astonish vt.使十分惊讶 astonishing adj.令人惊讶的 astonishment n．惊讶
to one’s astonishment使某人惊讶的是
add sth. into sth. add up add up to
keep sth. out of sth.
stage 舞台/时代/阶段
The plan is still in its early stage.
write out each correction sentence at least one 至少写一遍 at least 至少，起码/at most 顶多
not the least/ not in the least 一点儿也不
air-free 没有空气的 man-made(合成形容词)
大数字的读法(三位三位的划分，区别于汉语的读法) 分数的表达的复习
take turns to do sth. 轮流做某事 in turn/in turns 轮流
turn out 结果是，证明是 turn against 反对，背叛
turn round/around 翻身，转身 turn off 关上，使厌烦
turn to 转向， 求助于，翻到 turn into 变成
turn up 出现，调大 turn over翻身/翻转 turn down 拒绝/调小
be proud of …
be proud to do sth. AIM:
with the aim of
achieve one’s aim实现了某人的目标 aim to do sth.打算/计划… aim at doing sth. 旨在… aim…at…针对/瞄准
**整理的语法：
形容词比较级
形容词比较级变化规则。 1. 一般直接在词尾加er. bright-brighter
以e结尾的词，直接在词尾加r. brave-braver
3. 以辅音字母加y结尾的词，要变y为i再加er. shy-shier
以辅元辅结构结尾的词，要双写最后辅音字母再加er. fat-fatter
5. 双音节或多音节词，在词前加more. tiring- more tiring.
6. 少数双音节词既可以再前面more, 也可以在后面加er. 比如clever, funny, friendly, noisy等。
7. 特殊情况特殊记。 原级 good/well bad/ill far old little many/much late up 比较级 better worse farther/further older/elder less more later/latter upper 最高级 best worst farthest/furthest oldest/eldest least most latest/last uppermost/upmost
可以修饰形容词比较级的词。
1. much/a bit/ a little bit/ a little/ a lot/ rather/ any/ far/ even等。 1) Come a bit closer.
2) We need rather more than that. 3) It weighs a little more than before. 4) It’ll be a lot heavier than magnesium. 5) Is it any heavier?
三． 形容词和副词表示比较级和最高级的几个重要句型 1．“比较级形式＋than” 意为“比……更……”。 That’s easier said than done. 说比做容易。
2．“...as＋原级＋as...” 意为“和……一样”。 The building is as high as the tower. 这幢建筑和那座塔一样高。
3．“...not as (so)＋原级＋as...” 意为“不及……”。
My dictionary is not as (so) useful as yours. 我的字典不如你的有用。 4．表示倍数的三个句型： (1)...times as＋原级＋as... (2)...times＋比较级＋than... (3)...times the＋性质名词＋of...
The roads in the big cities are three times as wide as the roads in our town.
＝The roads in the big cities are twice wider than the roads in our town.
＝The roads in the big cities are three times the width of the roads in our town. 大城市里的路是我们城镇的路的三倍宽(比我们城镇的路宽两倍)。 5．“比较级＋and＋比较级”意为“越来越……”。
In the future，there will be less and less oil，gas and coal left. 将来石油、天然气和煤会越来越少。
Our school is becoming more and more beautiful. 我们的学校变得越来越美丽。 “the＋比较级．..，the＋比较级．..” 意为“越……，越……”。
The more，the better. 越多越好。
The more we have，the more we want. 人欲无穷。 7．“否定词＋比较级结构”表示最高级含义。
He has never spent a more worrying day. 他度过了最忧虑的一天。
There is no greater love than that of a man who lays down his life for his friends. 为朋友而放弃生命的人的爱是最伟大的爱。
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