重点难点梳理(初二上-1)
更新到2026.11.4
英语
Everything goes well, doesn't it? 一切顺利,不是吗?
May I have a glass of orange, please? Sorry, there is nothing left,but would you like some water instead? 请给我一杯橙汁好吗?抱歉,已经卖光了,不过您要来点水吗? instead 表示替代或转折的副词
I need to sleep.
物做主语用doing
人做主语用to do
You needn't worry about him, he is old enough to take care of himself. 你不必为他担心,他已经足够成熟,能够照顾自己了。
can't 不能
mustn't 禁止,千万不能
needn't 不必,不需要
shouldn't 不应该
Is Jack in the next room? Well, it's hard to say. But I heard him speaking luodly when I passed by just now. 杰克在隔壁房间吗?嗯,这很难说。但我刚才经过时,听到他说话声音很大。
hear sb. do sth. 听到某人做了某事,强调全过程或经常发生
hear sb. doing sth. 听到某人正在做某事,强调动作正在进行
Miss Zhou asks us to take out our English books and turn to page 18. 周老师让我们拿出英语书,翻到第18页。
tack out 拿出,取出
put up 张贴,举起
turn on 打开(电器,水源等)
lokk after 照顾
I thought there wouldn't be any surprises. 我以为不会有任何惊喜。
不定代词any后面应接名词surprise
At the foot of the hill, you could hear only if the sound of the water. 在山脚下,你只能听到流水的声音。
only if 只有,只有当
I found the movie boring, but my friend didn't seem bored at all. 我觉得这部电影很无聊,但我的朋友看起来一点也不觉得无聊。
修饰物the movie 表示“令人无聊的”,应使用现在分词转化的形容词boring
修饰人my friend 表示“感到无聊的”,应使用过去分词转化的形容词bored
I'm very sad because I fought with my best friend. 我非常难过,因为我跟最好的朋友吵架了。
fight against 对抗
fight for/on 为……而战,在……上战斗
I have more friends than he.
He has fewer friends than me.
friends是可数名词,此处表示“更少”应用fewer,不能用less(只能用于不可数名词)
In last English exam, Jim did much better than any other boys in his class. 在上次英语考试中,吉姆的表现比他们班上任何男生考的都要好得多。
从句要保持时态一致
Jim was careless the he made a mistake in the exam. 吉姆粗心大意,因此在考试中犯了一个错误。
The twins looked so similar that one looked to the other's mirror. 这对双胞胎长得非常相像,以至于他们看起来就像是彼此的镜像。
Mum expects Tom not to miss the competition. 妈妈希望汤姆不要错过比赛。
The weather report says it will be a sunny day tomorrow. I hope so. I will go climbing with my classmates. 天气预报说明天将是晴天。我希望如此。我将和同学们一起去爬山。
We all know there are some cultural differences between different countries, so we should act differently when we go abroad. 我们都知道不同国家之间存在一些文化差异,因此当我们出国时,应该采取不同的行为方式。
Last weekend, I visited my grandparents in the countryside. The scenery there was pleasant. Helping them in the garden was a pleasure. They were so pleased with my help, and we spent a wonderful day together. 上周末,我去乡下看望了我的祖父母。那里的风景宜人。在花园里帮助他们是一种乐趣。他们对我的帮助非常满意,我们一起度过了美好的一天。
They had the pleasure of seeing many of their dreams come true. 他们有幸见证了自己的许多梦想成真。
have the pleasure of doing sth. 有做某事的荣幸/乐趣
If you boil the vegetables too long, they'll lose all their goodness. 如果你把蔬菜煮得太久,它们就会失去所有的营养。
lose all their后面应接名词,good的名词形式为goodness
Many wild animals will be endangered without proper protection. 没有适当的保护,许多野生动物将会濒临灭绝。
without介词 proper形容词 所以后面要接proper的名词形式
It helps us connect with people around the world. 它帮助我们与世界各地的人建立联系
help sb. (to) do sth. 帮助某人做某事,to可以省略
We grow different kinds of vegetables in order to get enough vitamins for our daily life. 我们种植不同种类的蔬菜,以便为日常生活获取足够的维生素。
as long as 只要(引导条件状语从句)
in order to 为了(后面接动词原形,表示目的)
as soon as 一……就……(引导时间状语从句)
because of 因为(后面接名词或名词短语)
Home is always the warmest place. I couldn't agree more. East or west, home is the best. 家永远是最温暖的地方。我深表赞同。无论东方还是西方,家才是最好的。
I don't think so 我不这么认为
I'm afraid nor 恐怕不是
I couldn't agree more 我完全同意,再同意不过了(表示强烈赞同)
I hope so 我希望如此(语气娇弱)
数学
注意 距离题目要求计算的,是距离“起点”还是“终点/目的地”有多远
注意 计算的最后,要核实是否符合此规则:三角形任意两条边长度之和必须大于第三条边!
注意 一方面要充分考虑各种情况,避免有遗漏。另一方面要在结束答题前,把几种结果与题目中条件再次核对,排除掉不符合的
语文
部分古人的名与字
A项:晏殊,字同叔,“殊”与“同”相反。韩愈,字退之。“愈”(前进)与“退”相反。
B项:班固,字孟坚,“固”与“坚”相近。孟郊,字东野。“郊”与“野”相近。
C项:周瑜,字公瑾,“瑜”与“瑾”均为美玉,意义相近。张衡,字平子。“衡”与“平”相近。
D项:苏轼,字子瞻,“轼”(车前横木,供人凭轼远望)与“瞻”(远望)相近。苏辙,字子由。“辙”(车轮压出的痕迹) 与“由”(遵循、经过)相近。
物理
务必熟记以下长度单位及其换算