最新外研版高中英语选修六 1-6单元知识点归纳
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外研版高中英语选修六 1-6单元知识点归纳
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Module 1
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【词条1】lack
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【点拨】lack动词, 意为"缺乏,没有"。如:
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He is good at his job but he seems to lack confidence.
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What he lacks in experience he makes up for in enthusiasm.
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【拓展】
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1. lack的常用短语有:be lacking"欠缺,缺乏"；be lacking in"缺乏(某种9
品质、特点等)"；lack (for) nothing"应有尽有"。如:
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Money for the project is still lacking.
I think the film is lacking in pace.
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They have got everything ready and they lack for nothing.
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2. lack还可作名词,常与of连用,意为"缺乏,没有"。for lack of "因为缺
乏……"。如:
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The work had to be stopped for lack of funds.
The flowers withered for lack of water.
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【词条2】reply
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【点拨】名词,意为"回答,答复",常与介词to 连用。如:
Is it a reply to the first or the second letter?
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To my anger, she made no reply to my question.
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其常用在短语in reply to中,意为"作为对……的回答,回复"。如:
What did he do in reply to your challenge?
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【拓展】reply也可作动词,意为"回答,答复",reply (to ... / that ...) 。
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如:
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The teacher gave me no chance to reply to her question.
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Lily replied that she knew nothing about it.
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【词条3】apology
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【点拨】apology名词,意为"道歉,歉意",常用于短语:offer / make an 31
apology to sb."向某人道歉", accept an apology"接受道歉"。如:
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It’s impolite of you to leave without a word of apology.
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In my judgment, we should accept their apology.
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You’d better make an apology for your absence.
【拓展】其动词形式为apologize,意为"道歉,表示歉意",常用短语为:
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apologize to sb.(for sth.)"(因某事)向某人道歉"。如:
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I must apologize for not being able to meet you that day.
I think Tom might have apologized to Jane for what he did.
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经典短语透视
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【短语1】think of
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【点拨】think of可意为"想起,想出"。如:
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The photo made me think of my child-hood.
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It was Tom who thought of the good plan.
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【拓展】think的其他常用短语:
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1. think highly / much of 重视,高度赞扬。如:
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All the teachers think highly of John because he is very smart and kind.
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2. think about 考虑。如:
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I was thinking about something else and missed your words.
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3. think over 仔细考虑。如:
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Please think the plan over and let me know your decision tomorrow.
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【短语2】in addition
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【点拨】in addition意为"另外,此外"。如:
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I write my own songs and I play the guitar in addition.
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You need money and time. In addition, you need diligence.
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【拓展】in addition to 除……之外(还有),to为介词,后接名词或动词-ing
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形式。如:
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His brother can speak three foreign languages in addition to English.
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besides也意为"除……之外(还有)"。如:
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The play was badly acted, besides being far too long.
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【短语3】leave out
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【点拨】leave out意为"省去,删去"。如:
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In Western countries, people usually leave out No. 13 as the number 67
is thought unlucky.
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You can leave out the unnecessary words when writing down the notes.
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【拓展】
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1. leave out还可意为"漏掉,遗漏"。如:
Decide with you partner which words have been left out.
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2. 与leave相关的常用短语:leave behind遗留,留下
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It left behind a long train of problems and difficulties.
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leave over剩余,暂不解决
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We shall have to leave the question over till the next meeting.
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leave alone别管,不理会
If I were you, I’d leave this question alone.
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【短语4】show off
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【点拨】show off意为"炫耀"。如:
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Those boys always show off their sports skills to the girls.
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His brother likes to show off his knowledge in public.
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【拓展】与show相关的常用短语:
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show sb. around领某人参观
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The headmaster showed us around the school.
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show up出席,到场
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The party is about to begin, but Mr. Wang hasn’t shown up.
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热点语法聚焦
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didn’t need to do和needn’t have done都有"过去不必做某事"的94
意思,但是didn’t need to表示"过去没有必要做某事,事实上也没做"；needn’95
t have done表示"过去本来不必做某事,实际上却做了"。如:
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I didn’t need to take a taxi from the air-port —there was a bus all
the way into the city.
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I needn’t have booked in advance; there were pl enty of tickets left.
此外,要注意need的其它用法:
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need可作实义动词,也可作情态动词。
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1. 作实义动词时, need有人称和数的变化,后可以接名词、代词、动词
不定式和动名词等,否定式要在前面加don’t (doesn’t, didn’t),疑问句用102
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do (does, did) 提问。如:
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The company needs some good salesmen.
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His broken car needs to be repaired. = His broken car needs repairing. 106
2. 作情态动词时,need没有人称和数的变化,后接动词原形,否定式为107
needn’t,常用在否定句和疑问句中。如:
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You needn’t worry about him. He is very mature now.
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—Need I stay another day?
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—Yes, you must.
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Module 2
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【词条1】behave
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【点拨】behave 用作不及物动词,意为"(举止或行为)表现"。如:
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She has been behaving very politely.
另外,behave还可意为"举止得体；守规矩",常和反身代词连用。如: 118
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Can’t you make your little child behave himself?
【拓展】well- / ill- / badly-behaved adj.表现得好的/不好的；behavior
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n.行为,举止如:
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He is thought to be a well-behaved child.
She was ashamed of her c hildren’s bad behavior.
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【词条2】appeal
【点拨】appeal可用作名词,意为"吸引力,感染力"。如:
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Films of this sort have lost their appeal for me.
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【拓展】
1. appeal用作名词时,还可意为"呼吁,请求"。如:
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His appeal for forgiveness went unanswered.
An appeal is being made for help for those who lost their homes in the
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earthquake.
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2. appeal还可用作动词, 意为"引起兴趣；呼吁,请求",常跟介词to连用。
如:
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Does the idea of working abroad appeal to you?
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The police 137
are appealing to the public for any information about this.
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【词条3】awake
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【点拨】awake 可用作形容词,意为"醒着的"。如:
高中英语必修六知识点外研版
选修六Module 1 ⒈lack (1)Lack money/ experience/ time (2)Be lacking in (3)For lack of ①健康问题与不好的饮食习惯及缺乏锻炼有很大的关系。 Health problems are closely connected with bad eating habits and a lack of exercise. ②大城市因为缺乏空间建起了越来越多的高层建筑。 More and more high-rise buildings have been built in big cities for lack of space. ③由于缺乏睡眠，许多学生无法集中精力于学习上( 一句多译). Many students can’t concentrate on their studies for lack of sleep. Many students lack sleep, which makes it difficult for them to concentrate on their studies. Lacking sleep makes it difficult for many students to concentrate on their studies. Many students are lacking in sleep so that they can’t concentrate on their studies. ⒉advance Adj. 预先的在前的 预付款advance payment 提前做点某事do a little advance planning v.前进发展进步推动，将···提前 →advanced 先进的，高级的， advanced technology /society /courses n. in advance 提前、事先= ahead of time. ⒊In addition 此外，另外=besides, what’s more in addition to 除···之外= apart from// besides There’s a postage and packing fee in addition to the repair charge In addition , you need to know how long you should stay. Except //except for I cant take my holidays at any time except in August.
新人教版六年级上册数学重要章节知识点归纳总结
新人教版六年级上册数学各单元知识点总结 第一单元：分数乘法 一、分数乘法 （一）分数乘法的意义： 1、分数乘整数与整数乘法的意义相同。都是求几个相同加数的和的简便运算。 例如： 98×5表示求5个9 8的和是多少？ 2、分数乘分数是求一个数的几分之几是多少。 例如： 98×4 3表示求9 8的4 3是多少？ （二）、分数乘法的计算法则： 1、分数与整数相乘：分子与整数相乘的积做分子，分母不变。（整数和分母约分） 2、分数与分数相乘：用分子相乘的积做分子，分母相乘的积做分母。 3、为了计算简便，能约分的要先约分，再计算。 注意：当带分数进行乘法计算时，要先把带分数化成假分数再进行计算。 （三）、规律：（乘法中比较大小时） 一个数（0除外）乘大于1的数，积大于这个数。 一个数（0除外）乘小于1的数（0除外），积小于这个数。 一个数（0除外）乘1，积等于这个数。 （四）、分数混合运算的运算顺序和整数的运算顺序相同。
（五）、整数乘法的交换律、结合律和分配律，对于分数乘法也同样适用。 乘法交换律： a × b = b × a 乘法结合律： ( a × b )×c = a × ( b × c ) 乘法分配律：（ a + b ）×c = a c + b c a c + b c = （ a + b ）×c 二、分数乘法的解决问题 （已知单位“1”的量（用乘法），求单位“1”的几分之几是多少） 1、画线段图： （1）两个量的关系：画两条线段图；（2）部分和整体的关系：画一条线段图。 2、找单位“1”：在分率句中分率的前面；或“占”、“是”、“比”“相当于”的后面 3、求一个数的几倍：一个数×几倍；求一个数的几分之几是多少：一个数×几 。 几 4、写数量关系式技巧： （1）“的”相当于“×”“占”、“是”、“比”相当于“ = ”（2）分率前是“的”：单位“1”的量×分率=分率对应量（3）分率前是“多或少”的意思：单位“1”的量×（1 分率）=分率对应量 第二单元：位置与方向 1、位置是相对的，要指出一个物体的位置，必须以另一个物体为参照物。以谁为参照物，就以谁为观测点。 2、东偏北30。也可说成北偏东60。，但在生活中一般先说与物体所在方向
高中英语选修6重点词汇短语句子复习总结
选修6重点词汇，短语，句子复习总结 选修六. M6 Unit1 重点单词 abstract 抽象 sculpture 雕塑 belief 信仰 special特殊 visual视觉 consequently 因此 specific 具体 fragrant芳香 permanent永久 faith信念（信心） symbol象征 value 价值focus 焦点 avenue 大道 exhibition展览 possession拥有 figure图 achievemen 成就mostly 大多shadow阴影 variety 品种 contemporary 当代 custom 习俗adopt采用 object对象 explore gallery admission influence conventional convince ridiculous controversial excellent evident attempt predict collection discovery traditional amazing realistic masterpiece environment style aggressive scholar civilization counterpart scene permanent tip preference represent display fragile typical shape gradually technique reputation including replace 重点短语 focus on 集中 a great deal 大量 scores of concentrate on at the same time that Is (to say) as well as by coincidence lie in break away from on the other hand be well worth would rather appeal to精力在一个很大的成绩 集中精力在同一时间是(说) 以及巧合睡懒觉了 摆脱另一方面很值得 宁愿吸引 重点句子 1. A typical picture of this time was full of religious symbols, which created a feeling of … 一个典型的图片的这个时候布满了宗教符号,创造了一种感觉… 2.But it was evident that ideas were changing in the 13th century when … 但显然的想法改变13th世纪… 1
最新外研版高中英语选修六 1-6单元知识点归纳
外研版高中英语选修六1-6单元知识点归纳 Module 1 【词条1】lack 【点拨】lack动词, 意为"缺乏,没有"。如: He is good at his job but he seems to lack confidence. What he lacks in experience he makes up for in enthusiasm. 【拓展】 1. lack的常用短语有:be lacking"欠缺,缺乏"；be lacking in"缺乏(某种品质、特点等)"；lack (for) nothing"应有尽有"。如: Money for the project is still lacking. I think the film is lacking in pace. They have got everything ready and they lack for nothing. 2. lack还可作名词,常与of连用,意为"缺乏,没有"。for lack of "因为缺乏……"。如: The work had to be stopped for lack of funds. The flowers withered for lack of water. 【词条2】reply 【点拨】名词,意为"回答,答复",常与介词to 连用。如: Is it a reply to the first or the second letter? To my anger, she made no reply to my question. 其常用在短语in reply to中,意为"作为对……的回答,回复"。如: What did he do in reply to your challenge? 【拓展】reply也可作动词,意为"回答,答复",reply (to ... / that ...) 。如: The teacher gave me no chance to reply to her question. Lily replied that she knew nothing about it. 【词条3】apology 【点拨】apology名词,意为"道歉,歉意",常用于短语:offer / make an apology to sb."向某人道歉", accept an apology"接受道歉"。如: It’s impolite of you to leave without a word of apology. In my judgment, we should accept their apology. You’d better make an apology for your absence. 【拓展】其动词形式为apologize,意为"道歉,表示歉意",常用短语为: apologize to sb.(for sth.)"(因某事)向某人道歉"。如: I must apologize for not being able to meet you that day. I think Tom might have apologized to Jane for what he did. 经典短语透视 【短语1】think of 【点拨】think of可意为"想起,想出"。如: The photo made me think of my child-hood. It was Tom who thought of the good plan.
高中英语选修六重要知识点复习
Review of Book 6 高二英语选修6 重要知识点复习 I.Let?s review the phrases of book6. 从方框里选择短语并用正确的形式填空，每个短语只能够用一次（其中有多余的选项） burn to the ground, put up with, on the whole, result in , so long as, come about, in the distance, build up, focus on , scores of, a great deal of, manage to , be made up o f, translate …into, take it easy,, in spite of, in sorrow, take possession of, due to, decide on , be addicted to, get into, in the flesh, run out of, stand for, feel like, be accustomed to, convince…of, pay attention to, in the darkness, take a risk 1 the restaurant?s success was___ its new manage. 2 Could you tell me how many departments this university ____? 3 The man often returns from work very late and gets through the woods ___ by himself. 4The king tried to______ his men ____ his power by leading the great army. 5At the discussion, the farmers? argument____ whether their farmlands should be covered by the factory. 6Once you ___ surfing on the Internet, you will find it rather hard to give it up. 7Though humans have discovered____ oil and coal, they mustn?t waste energy like that. 8You can not legally____ the property until three weeks after the contract is signed. 9In mathematics, the letter “X” usually ______ an unknown figure. 10Hearing the sad news that the famous actor died of cancer, all his fans were deeply ______. 11“_______, young man” , the doctor said to Bill. “Let me examine you carefully. 12______ so many difficulties , we?ll do whatever we can to finish the task. 13It was so dry and hot in the desert and the travelers ______ the water they had. 14Without any guide leading them in the forest, the explorers soon____ trouble. 15I?m very hungry now and I _____ eating some food or fruit as soon as possible. 16Those young people would like to _____ so that they could find out whether there is a huge snake in the cave. 17Last week, we saw the man_______ who was said to have died in an accident and we know the news was not true. 18After a long heated discussion, the manager finally_______ taking the measures to encourage their stuff. 19A large number of young people who________ the comfortable life in the city would rather not return to the countryside. 20The popularity of private cars will_____ more serious air pollution and more traffic accidents. 21However, ________, I think I have been fortunate. 22With the Internet bridging people all over the world, great changes have________. 23A balanced diet and enough exercise can certainly_________ your health. 24The pay you get is so low in the company while your work is so hard-----how can you _________it? 25One can achieve his goal sooner or later_______ he is able to face the future with confidence and work hard at it. II.Words spelling. 单词拼写A： 1.They had to c______ tomorrow?s football match because of the bad weather. 2.He studied the German market to find the _______( 可能性) there for investment. 3.Two middle-aged passengers fell into the sea. ________( 不幸地), neither of them could swim. 4.The car club couldn?t ________（保证）to meet the demands of all its members. 5.Miss Lin made a very _________(印象深刻的) speech at the meeting. 6.American culture is u______ because it was formed and developed under special conditions. 7.The lecture was so long and dull that most audiences got b______ with it. 8._______(发抖) with fear, I made my way to the edge of the crater. 单词拼写B 1.The word “ honesty” is an a______ （抽象）noun. 2.There are many art g_____ （画廊）in New York. 3.I?m afraid I?ve never been much of a s______ (学者) 4.They are to put on an ______ (展览) of French paintings next week. 5.The prisoners a______ (尝试) to escape, but failed. 单词拼写C： 1．Some___________ (青少年) have got into the habit of taking drugs. 2．She hopes to get a job on the local newspaper and _______(最后)work the Times. 3．The doors opened _______（自动地）as we approached. 4．He played the piano for a bit of __________ （放松） 5．It?s ________（不合法的）to park your car here. 6．He put forward a plan for improving the rate of_______（生产）。 7．So I did wrong thing! Well, nobody?s_______（完美的）。 8．A woman is ________（怀孕的）for nine months before a child is born. 9．In fact,_______（压力）isn?t so bad a thing as it is often supposed to be. 10.The man made a________（陈述）to the police. 单词填空D 1．T he __________(平均数)of 3,6 and 9 is 6 2．G as and coal are __________(燃料)。 3．W e had very little d_________(资料)on that subject.
六年级知识点归纳总结汇总
六年级知识点归纳总结 第一单元分数乘法 1．分数乘整数的意义和整数乘法的意义相同，就是求几个相同加数的和的简便运算。2．分数乘整数的计算法则：分数乘整数，用分数的分子和整数相乘的积作分子，分母不变。 （为了计算简便，能约分的要先约分，然后再乘。） 注意：当带分数进行乘法计算时，要先把带分数化成假分数再进行计算。 3．一个数与分数相乘，可以看作是求这个数的几分之几是多少。 4．分数乘分数的计算法则：分数乘分数，用分子相乘的积作分子，分母相乘的积作分母。 5．整数乘法的交换律、结合律和分配律，对分数乘法同样适用。 乘法交换律： a × b = b × a 乘法结合律： ( a × b )×c = a × ( b × c ) 乘法分配律：（ a + b ）×c = a c + b c a c + b c = （ a + b ）×c 6．乘积是1的两个数互为倒数。 7．求一个数（0除外）的倒数，只要把这个数的分子、分母调换位置。 1的倒数是1。0没有倒数。 真分数的倒数大于1；假分数的倒数小于或等于1；带分数的倒数小于1。 注意：倒数必须是成对的两个数，单独的一个数不能称做倒数。 8．一个数（0除外）乘以一个真分数，所得的积小于它本身。 9．一个数（0除外）乘以一个假分数，所得的积等于或大于它本身。 10．一个数（0除外）乘以一个带分数，所得的积大于它本身。 11．分数应用题一般解题步骤。 （1）找出含有分率的关键句。
（2）找出单位“1”的量（以后称为“标准量”）找单位“1”：在分率句中分率的前面；或“是”、“占”、“比”、“相当于”的后面 （3）画出线段图，标准量与比较量是整体与部分的关系画一条线段即可，标准量与比较量不是整体与部分的关系画两条线段即可。（4）根据线段图写出等量关系式：标准量×对应分率=比较量。求一个数的几倍：一个数×几倍； 求一个数的几分之几是多少：一个数×几 几 。 写数量关系式技巧： （1）“的”相当于“×”“占”、“是”、“比”相当于“ = ” （2）分率前是“的”：单位“1”的量×分率=分率对应量 （3）分率前是“多或少”的意思：单位“1”的量×（1 分率）=分率对应量（5）根据已知条件和问题列式解答。 12．乘法应用题有关注意概念。 （1）乘法应用题的解题思路：已知一个数，求这个数的几分之几是多少？单位“1”×对应分率=对应量 （2）找单位“1”的方法：从含有分数的关键句中找，注意“的”前“是、比、相当于、占、等于”后的规则。 （3）甲比乙多几分之几？计算方法是：（甲－乙）÷乙= 甲÷乙－1甲比乙少几分之几？计算方法是：（甲－乙）÷甲 = 1－乙÷甲 （4）“增加”、“提高”、“增产”等蕴含“多”的意思，“减少”、“下降”、“裁员” 等蕴含“少”的意思，“相当于”、“占”、“是”、“等于”意思相近。 （5）当关键句中的单位“1”不明显时，要把关键句补充完整,补充成“谁是谁的几分之几之几”或“甲比乙多几分之几”、“甲比乙少几分之几”的形式。（6）乘法应用题中，单位“1”是已知的。 （7）单位“1”不同的两个分率不能相加减，加减属相差比，始终遵循“凡是
选修六知识点归纳总结
选修六知识点归纳总结 ▲环境问题的表现：资源短缺，环境污染，生态破坏，全球环境变化 ▲环境问题产生的原因：（1）自然原因自然原因引起的环境问题，主要指火山爆发，地震，山崩，泥石流，台风，海啸，寒潮，水旱等自然界固有的自然灾害 （2）人为原因 1.资源的有限性与人类需求的无限性的矛盾（根本性的原因）2．短期经济利益与长远环境效益的矛盾3．局部利益与整体利益的矛盾4．个人行为和大众利益的矛盾 解决当代环境问题的关键是在尽可能短的时期内，控制世界人口的增长，使世界人口稳定在适度的规模 当代环境问题的特点： 1、危害的不可预见性 2、过程的不可逆性 3、规模的全球性 两种不同的环境观: 传统的环境观：人地关系：人地对立，基本观点：征服自然。后果：资源枯竭和环境破坏 新的环境观：天人合一，人地归一，保持平衡与协调。良性方向发展 可持续发展的概念和内涵 （1）概念可持续发展就是既满足当代人的需求，又不对后代人满足其自身需求能力构成危害的发展。它是一个涉及经济、社会、文化技术和自然环境的综合概念。 （2）基本思想①鼓励经济增长；②要保证资源的可持续利用和良好的生态环境；③谋求社会的全面进步。 （3）中国的可持续发展——《中国21世纪议程》 ▲水体富营养化:水体富营养化发生在淡水水体，称为“水华”；发生在海洋，称为“赤潮” 1、形成条件：较为封闭的海湾、湖泊等水体中，由于水体的流动性差，自净能力弱 河道中不的净化作用见课本 2、污染物：氮磷等植物营养元素 3、污染源：工业废水、生活污水、农业废水 4、危害——①水生植物和鱼类死亡②水质变坏③湖泊变沼泽 5、湖泊沼泽化本身是一种自然现象，进程缓慢。人类活动（水体富营养化与围湖造田）加快了这一进程 海洋石油污染 1、污染源：近海石油的开采、加工和运输，海上油轮泄漏 2、污染物：石油 3、危害： 直接危害：油污染能直接导致海鸟、海兽的毛、皮丧失防水和保温性能，或因堵塞呼吸和感觉器官而大量死亡。油膜和油块能粘住大量的鱼卵和幼鱼，并阻碍海藻的光合作用，底栖动物则还要受沉降到海底的石油的影响。 间接危害：石油在氧化分解过程中，因大量消耗水中的溶解氧，也会间接地对生物造成危害 4、常发区域：世界的主要港湾、主要航线附近、海上油井周围 5、怎样清除石油 ①分散：喷洒强效洗涤剂，不宜在近岸或渔场使用 ②沉降：撒粉状石灰，危害海底生物 ③吸收：利用麦秆等吸收石油，静水环境 ④围栏：小面积油污，静水环境 ⑤放任：任其自然分解 ⑥燃烧：油层达2mm，造成大气污染▲水污染的危害：①危害人体健康②降低农作物的产量和质量③影响渔业生产的产量和质量④制约工业的发展⑤加速生态环境的退化和破坏⑥造成经济损失 水污染的防治措施 （1）工业水污染防治对策 1.宏观性控制对策:优化产业结构与工业结构 2.技术性控制对策。如积极推行清洁生产，提高工业用水重复利用率，实行污染物排放总量控制 制度，促进工业废水与城市生活污水的集中 3.管理性控制对策，如完善法律法规，加大执法力度，健全环境监测网络 （2）城市水污染防治对策 1. 将水污染防治纳入城市的总体规划 2.城市废水的防治的防治应遵循集中与分散相结合的原则 3.在缺水地区应积极将城市水污染的防治与城市废水资源化相结合 4.加强城市地表和地下水源的保护 5.大力开发低耗高效废水处理与回用技术 （三）农村水污染防治对策 1.发展节水型农业 2.合理利用化肥和农药 3.加强对畜禽排泄物，乡镇企业废水及村镇生活污水的有效处理 固体废弃物（通常称为垃圾）是指在生产建设、日常生活和其他活动中产生的污染环境的固态、半固态废弃物质 城市垃圾的特点 1、数量大 2、品种多 3、变化大 当代垃圾产生的环境问题 1、自然环境对固体废弃物具有一定的自净能力，例如沙土掩埋、微生物分解等，使垃圾回归土壤 2、传统方式：用垃圾和粪便堆肥，使有机质回归土壤，不会造成环境污染 注意：上述两种方式，不能处理所有的固体废弃物。 3、固体废弃物的危害： ①污染大气②污染水体③污染土壤④占用耕地⑤影响环境卫生⑥危害人体健康 固体废弃物污染防治与综合利用 （一）固体废物减量化 1.对城市固体废物：逐步改变燃料结构，净菜进城、减少垃圾生产量，加强产品的生态设计，推行垃圾分类收集，搞好产品的回收、利用的再循环 2、对工业固体废物：淘汰落后生产工艺，推广清洁生产工艺，发展物质循环利用工艺 （二）固体废物资源化与综合利用 1.物质回收利用，如从废弃物中回收提取有用成分，如纸，重金属等 2.物质转换利用，如废渣生产建筑材料、水泥，进行堆肥，产生农肥，取代某种工业原料等 3.能量转换利用，如能有机废物的焚烧处理回收热量、发电，利用垃圾厌氧消化产生沼气 （三）固体废物的无害化处理处置 影响大气污染扩散和自净的因素： ⑴污染物排放量大小：若排放量小，则易扩散 ⑵气象条件：风速、风向、气温、湿度、云况、辐射等 凡是有利于增大风速、增强湍流的气象条件，都有利于污染物的扩散； 出现逆温天气，大气层异常稳定时，不利于大气污染物的扩散 ⑶地形：盆地、河谷地形，不利于污染物扩散
高中英语选修六知识点总结
Unit 1 I词汇及结构 1. would rather do sth情愿做…. would rather sb did sth情愿sb做… 情愿做….而不愿意做…：would rather do sth than do sth= would do sth rather than do sth = prefer to do sth rather than do sth = prefer doing sth to doing sth 2.faith n. 信任,信仰keep faith with 忠于信仰; 守信 have faith in 相信, 信任 in good faith 老实地；诚恳地faithful adj. 忠诚的，可靠的 3.As there are so many different styles of Western art , it would be impossible to describe all of them in such a short text． so+adj+a(an)+(单数可数) (+that…) so many/few +n (复数) (+ that…) so much/little (不可数) (+that…) such+adj.+n.(不可数)/ n (复数) 4.consequently adv. 所以，因此 Mr Foster has never been to China. Consequently, he knows very little about it. 福斯特先生从未去过中国, 所以对中国了解得很少。 consequent adj. 作为结果的,随之发生的 consequence n. 结果
人教版六年级数学下册知识点归纳总结
人教版六年级数学下册知识点归纳总结1、负数的由来： 为了表示相反意义的两个量（如盈利亏损、收入支出……）.光有学过的0 1 3.4 2/5……是远远不够的。所以出现了负数.以盈利为正、亏损为负；以收入为正、支出为负 2、负数：小于0的数叫负数（不包括0）.数轴上0左边的数叫做负数。 若一个数小于0.则称它是一个负数。 负数有无数个.其中有（负整数.负分数和负小数） 负数的写法：数字前面加负号“-”号.不可以省略例如：-2.-5.33.-45.-2/5 正数：大于0的数叫正数（不包括0）.数轴上0右边的数叫做正数 若一个数大于0.则称它是一个正数。正数有无数个.其中有（正整数.正分数和正小数） 正数的写法：数字前面可以加正号“+”号.也可以省略不写。 例如：+2.5.33.+45.2/5 4、0 既不是正数.也不是负数.它是正、负数的分界限 负数都小于0.正数都大于0.负数都比正数小.正数都比负数大 5、数轴： 6、比较两数的大小： ①利用数轴： 负数＜0＜正数或左边＜右边 ②利用正负数含义：正数之间比较大小.数字大的就大.数字小的就小。负数之间比较大小.数字大的反而小.数字小的反而大 1/3＞1/6 -1/3＜-1/6 第二单元百分数二 （一）、折扣和成数 1、折扣：用于商品.现价是原价的百分之几.叫做折扣。通称“打折”。
几折就是十分之几.也就是百分之几十。例如：八折=8/10=80﹪. 六折五=6.5/10=65/100=65﹪ 解决打折的问题.关键是先将打的折数转化为百分数或分数.然后按照求比一个数多（少）百分之几（几分之几）的数的解题方法进行解答。 商品现在打八折：现在的售价是原价的80﹪ 商品现在打六折五：现在的售价是原价的65﹪ 2、成数：几成就是十分之几.也就是百分之几十。例如：一成=1/10=10﹪八成五=8.5/10=85/100=80﹪ 解决成数的问题.关键是先将成数转化为百分数或分数.然后按照求比一个数多（少）百分之几（几分之几）的数的解题方法进行解答。这次衣服的进价增加一成：这次衣服的进价比原来的进价增加10﹪ 今年小麦的收成是去年的八成五：今年小麦的收成是去年的85﹪ （二）、税率和利率 1、税率（1）纳税：纳税是根据国家税法的有关规定.按照一定的比率把集体或个人收入的一部分缴纳给国家。 （2）纳税的意义：税收是国家财政收入的主要来源之一。国家用收来的税款发展经济、科技、教育、文化和国防安全等事业。（3）应纳税额：缴纳的税款叫做应纳税额。（4）税率：应纳税额与各种收入的比率叫做税率。 （5）应纳税额的计算方法：应纳税额=总收入×税率收入额=应纳税额÷税率 2、利率（1）存款分为活期、整存整取和零存整取等方法。 （2）储蓄的意义：人们常常把暂时不用的钱存入银行或信用社.储蓄起来.这样不仅可以支援国家建设.也使得个人用钱更加安全和有计划.还可以增加一些收入。（3）本金：存入银行的钱叫做本金。（4）利息：取款时银行多支付的钱叫做利息。（5）利率：利息与本金的比值叫做利率。（6）利息的计算公式： 利息＝本金×利率×时间利率＝利息÷时间÷本金×100％ （7）注意：如要上利息税（国债和教育储藏的利息不纳税）.则： 税后利息=利息-利息的应纳税额=利息-利息×利息税率=利息×(1-利息税率) 税后利息=本金×利率×时间×(1-利息税率) 购物策略： 估计费用：根据实际的问题.选择合理的估算策略.进行估算。 购物策略：根据实际需要.对常见的几种优惠策略加以分析和比较.并能够最终选择最为优惠的方案 学后反思：做事情运用策略的好处 第三单元圆柱和圆锥
高中英语人教版选修六知识点总结教学内容
选修六知识点 -----高二英语备课组 Unit 1 Art 1.achieve one’s aim 实现某人的目标without one’s aim 漫无目标的 with the aim of 意在…，以…为目标aim at doing sth /aim to do sth 意欲，力求做某事 be aimed at (doing) sth.目的在于…，旨在… 2.be typical of……是特有的，是典型的… E.g. It’s typical of him to forget. 3.be possessed of sth. 具有（某种品质或特征）be possessed with/by 被…控制 take the possession of sth 占有某物，拿到某物 in possession of /in the possession of 归…所有（用法与in charge of & in the charge of相同） 4.a great deal 大量（a great deal of 修饰不可数名词） 5.make an attempt to do/at doing sth 尝试做…at one’s first attempt 第一次尝试 in an attempt to do sth 试图做某事attempt to do/ at doing sth 尝试做某事 6. on the one hand…on the other hand （般指两个相反或相对的方面）一方面…另一方面 for one thing ..for another thing…常陈述情况一致的两个方面，用于解释原因，表列举 7.be worth doing = be worthy of being done = be worthy to be done 值得做… be well worth doing sth.（主动表被动）It’s worthwhile to do/doing sth. 值得做… 8.have/lose faith in 对某人信任/失去对某人的信任 9.keep one’s figure 保持身材have a good figure 身材苗条figure out 算出，解决，理解 10. would rather do ..than…= would do …rather than… I would rather go on foot than take a bus.= I would go on foot rather than take a bus. 11. in preference to 优先于have a preference for 更喜欢… 12.appeal to (对某人)有吸引力；（使某人）感兴趣appeal for 恳求/呼吁… 13 win/earn reputation 赢得名声have a reputation for 以…而闻名. establish reputation 建立名誉 a good /bad reputation 好/坏名声 live up to one’s reputation 名不虚传…不负盛名… 14.动词不定式作后置定语： 1.用在序数词、形容词最高级后. E.g. He is the first to come here. 2.用在被序数词、形容词最高级、next、last、only等修饰的名词后. Eg. The best way to solve the problem is to make a plan. 15.more than + 数词表示“多于，超过”I have taught English more than 15 years. more than + 名词表示“不仅仅”The museum displays more than the visual delights of art. more than + 动词/形容词/副词表示“非常”I’m more than pleased to help you . more than + 句子表示“超过…的能力范围”The beauty is more than I can describe. 16. 句型what is known to us all is that…= it is known to us all that …= As is known to us all, … 17. 短语：It was evident that…很显然…It is predicted that …据预测…concentrate..on 集中，全神贯注于in perspective 用透视画法by coincidence 巧合地break away from 挣脱，脱离scores of 许多.in the flesh 活着的，亲自，本人 every two years= every second year = every other year 每2年be allergic to 对…过敏 be well worth a visit 很值得参观to be specific 具体地说be specific to 特有的；独特的attitude to/towards 对…的态度convince sb of sth /that…使某人相信… Unit 2 Poems 1．convey sth to sb 向某人表达/传递某物convey sb/sth from A to B把…从A地运送到B地2.take one’s time 不急，慢慢来take sth seriously 认真对待某事 take sth for granted 认为…理所应当 3.run out of 用完了…表示主动意义，run out …用完了，主语通常为时间、食物、金钱等We are running out of the money. = The money is running out. (钱快要用完了) 4.be made up of=be composed of =consist of由……组成
人教版高中英语【选修六】[知识点整理及重点题型梳理] 动词-ing形式复习
人教版高中英语选修六 知识点梳理 ）巩固练习 重点题型（ 常考知识点 动词-ing形式复习 概念引入 在初中和高一，我们已经学过动词-ing形式的用法，而在学习过去分词的过程中，也穿插着与动词-ing形式的用法的区别，那么在本单元我们就把学过的有关动词-ing形式的内容复习并小结一下。 看下面句子： 1.Having collected and evaluated the information,I help other scientists to predict where lava from the volcano will flow next and how fast. 2.I was appoin te d as a volcanologist working for the Hawaiian V olcano Observatory twenty years ago. 3.My job is collecting information for a database about Mount Kilauea,which is one of the most active volcanoes in Hawaii. 4.Are you interested in studying rocks and other things that make up the surface of the earth? 5.Can you imagine doing such dangerous work as part of your job? 这些句子中斜体词部分都是动词-ing形式及其宾语或状语等构成的短语，句1中短语作状语；句2中短语作定语，而且动词-ing形式带有状语“for...”；句3中短语作表语，表语中Moun t Kilauea又带有which引导的定语从句；句4中短语作介词的宾语，而studying的宾语rocks and other things也带有that引导的定语从句；句5中短语作动词的宾语。那么动词-ing形式的用法是什么？使用时我们要注意什么呢？ 用法讲解 动词-ing形式概述 1.特点： 1.动词-ing形式（v-ing形式）是英语三大非谓语动词之一，另两个是不定式和过去分词； 2.有动词特征：有时态和语态，可以有自己的宾语和状语； 3.有名词、形容词和副词的特征：可以在句中作主语、表语、定语、宾语、状语、宾语补足语、主语补足语等。 4.可分为现在分词和动名词：现在分词相当于形容词或副词，一般作定语、状语、补足语和表示特点的表语；动名词相当于名词，一般作主语、宾语和表示主语内容的表语。 2.构成： 基本形式：do＋ing 否定形式:“not doing” 注意：无论在完成式还是被动式里,not必须置于v-ing形式之前。