主过从过,主将从现,主现从任精编版
主过从过,主将从现,主现从任
重温一道引起思绪混乱的题........After a wonderful meal, they told stories and sang songs by the campfire.表示“在……之后”的句式：after+从句/doing/n.after I arrived => After my arrival 在我到达之后完成同义句转换：when the plane arrived =After his arrival, we have a party. ==时态使用重大的规则：（12字原则)主过从过，主将从现，主现从任【主将从现】常见的有以下三种情况：一、When/if引导的主句是一般将来时，从句用一般现在时。
I'll tell her the good news when she comes back.当她回来的时候，我将把这个好消息告诉她。
If it doesn't rain, he will come here on time.如果不下雨，他会按时来这儿的。
二、如果主句是祈使句，那么从句要用一般现在时。
Don’t laugh at me when I make a mistake. 我犯错误的时候不要笑话我。
三、如果主句是含有情态动词的一般现在时，从句多用一般现在时。
You should be quiet when you are in the reading room. 在阅览室时应保持安静。
【主过从过】常见的有以下二种情况：1.直接引语变成间接引语2.宾语从句中，当主句的谓语动词为过去时态时，从句须用表示过去的某种时态。
例如：He asked when they would go to the party.他问他们什么时候将去参加聚会。
Miss Green said she had been to Beijing before.格林小姐说她以前曾经去过北京。
when的主句和从句时态
when的主句和从句时态“when”在英语中是一个引导时间状语从句的连词，表示某个动作发生的时间点或时间段。
关于“when”引导的从句与时态的关系，以下是一些常见的规则和情况：1. 主句与从句时态一致原则：当主句和从句的时态都是一般现在时或一般过去时，从句的时态不受主句影响。
例如：- I will call you when I finish work. (主句将来时，从句将来时)- We were eating when the phone rang. (主句过去进行时，从句过去时)2. 主将从现原则：当主句为将来时态（如will, shall, be going to等），从句通常用现在时代替将来时。
例如：- I will let you know when he comes back. (主句将来时，从句现在时)3. 主过从过原则：当主句为过去时态（如过去进行时、过去完成时等），从句也通常用过去时态。
例如：- They started to work when they had finished their homework. (主句过去完成时，从句过去时)4. 虚拟语气：在虚拟语气中，有时主句和从句的时态并不一致。
例如：- If I had known, I would have helped you. (主句过去完成时，从句过去将来完成时)5. 固定表达不受此限：有些固定表达不受上述规则限制，如“no sooner...than...”和“hardly...when...”。
例如：- No sooner had he arrived than he left again. (主句过去完成时，从句过去时)- I had hardly started when it began to rain. (主句过去完成时，从句过去时)6. 特殊的时态搭配：有时为了强调某个时间点或情况，主句和从句也可能使用不同寻常的时态搭配。
我的教学口诀我的顺口溜
我的教学口诀我的顺口溜关键词：口诀顺口溜词类变化易混词汇记忆利用口诀顺口溜教学英语的理论依据是教育学心理学的兴趣信心激励原则和需要原则。
教育学心理学认为：有兴趣才愿意学,有成就感才会有信心，有了信心才能取得最后的成功。
许多记忆口诀和语法句法的学习口诀是幽默有趣的。
如教盛宴feast（肥死了）,因为是吃盛宴，所以肥死了，这样就容易形成永久性记忆。
因此,在英语教与学的过程中，渗入口诀顺口溜是完全必要的。
口诀顺口溜教学法开辟了学生学习英语的新途径。
有人说过：学习的效果﹦50﹪策略﹢30﹪努力﹢20﹪的天赋，可见策略的重要性。
利用口诀顺口溜教学英语正是科学地归纳总结书本内容，应用较为行之有效的策略达到理想的学习效果。
前苏联教育家苏霍姆林斯基说：“即使是最好的、最精密的教学方法,只有在教师加入了自己的个性,对一般的东西加入自己的经过深思熟虑的东西以后,它才能是最有效的。
”为了培养中学生在更好掌握英语的能力，利用一些英语“口诀”来辅助教学，收到了较好的效果。
下面，我把从教21年来教学中常用到的教学顺口溜和口诀（有自己编的也有引用别人的）和大家共同分享。
一．英语的词类变化口诀1．名词变复数：名变复，o与f 。
即我们要特别注意词尾以o、f结尾的单词以o结尾的单词除了两人（negro，hero）两菜（tomato，potato）加es外，其余一般加s；我们还可以用这个句子帮助记忆。
Negroes and heroes eat tomatoes and potatoes,hate mosquitoes.（黑人和英雄吃土豆和西红柿讨厌蚊子）以f结尾的名词变复数，特殊情况有几个？一个农奴（serf）从海湾（gulf）来到房顶（roof）上，有了证据（proof），增加了信仰（belief），加上-s充满勇气。
或者记住了下面这句顺口溜，你就不会觉得难了。
贼的妻子用半片树叶和一把小刀杀死了架子后的一匹狼(thief, wife, half,leaf,knife,shelf,wolf)。
完整版虚拟语气必备句子
I Real conditional:句式为（if +从句，+主句）1.主现从现（ rule） If the moon goes near the earth, the tide goes high.2.主将从现 If it stops raining later this afternoon, we will eat out.3.主祈从现。
If you are not likely to be in town, please let me know.II Unreal conditional-----背完这些句子你就无敌了~1. Aif 条件句主句与此刻事实相反did（ be 动词用 were）主语+ should/ would /could/ might do与过去事实If +主语+ had done主语+ should/ would /could/ might have done与未来相反did/were to do/ should do主语+ should/ would /could/ might do(1). If you were a teardrop in my eye. For fear of losing you, I would never cry.(2)If I had not cut down my hair,I would have looked more beautiful.(3)If I should/were to have Taylor Swift’ s voice, I would sing from morning to night.省略的倒装：(1) 句 1=Were I a teardrop in my eye, For fear of losing you, I would never cry.(2) 句 3= Should I have Taylor Swift’ s voice, I would sing from morning to night.也许 Were I to have If I should/were to/had Taylor Swift’s voice, I would sing from morning to night.C.错综时间（看主句的时间状语）(1)If you had not played basketball in the rain,you wouldn ’get a heavy cold now.(2)--- The weather has been hot and dry.--- Yes.If it had rained even a drop ,things would be much better now!2 委宛条件句（ without,or, otherwise,but for ）（1） Without you? I ’d be a soul without a purpose.Without you? I would be an emotion without a heart.I ’ m f a ce without expression, a heart with no beat.Without you by my side, I’ m just a flame without the heat.没有你？我将是一个没有目的的灵魂；没有你？我的感情将没有了基础；我将是一张没有表情的脸，一颗停止跳动的心；没有你在我身旁，我但是一束没有热量的火焰。
主将从现 知识讲解 “主将从现”适用于什么样的从句中
主将从现知识讲解“主将从现”适用于什么样的从句中所谓的“主将从现”第一层次，即“主句用将来时（现在将来时和过去将来时），从句用一般时（一般现在时和一般过去时）”,这一层次也可以称作“初中层次”。
第二层次：“主将”中将来时有将来进行时，将来完成时，将来完成进行时，而“从现”中相应的时态也可能是现在进行时，现在完成时，现在完成进行时。
例如：If the snow has completely stopped, we will be playing with snow on the playground.如果雪能够完全停下来，我们将正在操场上玩雪呢！If it is snowing, we will have been walking in the snow for more than two hours.如果天一直在下雪，我们将在雪地里走了两个多小时了。
另外，引导条件状语从句的连接词（connector）还可以是unless, so long as, in case, on condition that, supposing that, provided that 等。
if引导条件状语从句的两种用法：第一种用法：当某事发生的可能性较大时，这种情况，有个十三字口诀：“主将从现，主过将从过，主现从现”。
即主句是一般将来时，从句用一般现在时；主句用过去将来时，从句用一般过去时；当主句中有can/can’t的话，则从句用一般现在时。
例如：If he has time, he will come tomorrow.If she finishes early, she can come back early.If you don’t do homework, the teacher will scold you.第二种用法：1.if从句还表示不可实现的条件或根本不可能存在的条件,也就是一种虚拟的条件或假设,从句多用一般过去时或过去完成时。
高三复习-时间状语从句用法
时间状语从句用法
用法可以用八个字来概况：主将从现或主过从过。
主将从现：主句用了将来时，从句就要用现在时。
主过从过：主句用了过去时，从句也要用过去时。
时间状语
在复合句中，担任状语成分的从句称为状语从句。
时间状语从句说明主句动作发生或进行的时间。
状语从句由连词引导，其位置通常可以放在句首或句末。
放在句首时，常用逗号与主句分开；放在句末时，从句前面往往不加逗号。
引导的时间状语从句的主从复合句中，动作发生在先的用过去完成时，在后的用过去时。
表示前面的叙述所没有提到过的信息。
它总是对所描述的事件予以引人注目的强调，意为“这时；突然”；当位于句末的分句具有引种用法时，大致有以下三种情况：
A.when分句前面的分句使用过去进行时。
B.when分句前面的分句使用was （were）about to，was（were）on the point 等。
C.when分句之前的分句用过去完成时，其中sb had hardly/scarcely/barely … when已成为固定词组。
表示对比，主要有以下两种情况：
A.相当于whereas，while，since，意为“既然；然而”。
B.when从句中使用虚拟语气，意为“本来……却……”。
原因状语
原因状语从句说明主句动作发生或进行的原因，一般由because,since,as等引导。
because语气较强，用来说明人所不知的原因，回答why提出的问题。
当原因是显而易见的或者已为人们所知，就用as 或since 。
主从复合句中时态的一致主要有以下几种情况
主从复合句中时态的一致主要有以下几种情况：一、在以when，after，as soon as等引导的时间状语从句以及以if，unless 等引导的条件状语从句中，如果主句是一般将来时，从句则用一般现在时。
例如：I'll tell her the good news when she comes back.当她回来的时候，我将把这个好消息告诉她。
If it doesn't rain, he will come here on time.如果不下雨，他会按时来这儿的。
二、在含有宾语从句的主从复合句中，当主句的谓语动词为过去时态时，从句须用表示过去的某种时态。
例如：He asked when they would go to the party.他问他们什么时候将去参加聚会。
Miss Green said she had been to Beijing before.格林小姐说她以前曾经去过北京。
三、在宾语从句中，当主句的时态为一般现在时、现在进行时、现在完成时等时态时，后面从句时态不受主句限制，可根据情况，选用各种适合的时态。
例如：Do you know when we'll have a football match?你知道我们什么时候举行足球赛吗？You know he has gone to Shanghai.你知道他已去上海了。
四、当宾语从句表述的是客观事实、科学真理、现在的习惯动作以及格言等时，其时态不受主句限制，而用一般现在时。
例如：The teacher told us that light travels faster than sound.老师告诉我们光速比音速要快。
When I was a student, my teacher often told us that time and tide wait for no man.当我还是学生的时候，老师常常告诉我们，岁月不等人。
2021年If 引导的条件状语从句
If 引导的条件状语从句欧阳光明（2021.03.07）If 引导的条件状语从句遵循主过从过、主将从现的原则。
主将从现（主情从现、主祈从现）If it rains tomorrow,I won’t climb the hills.If it doesn’t rain tomorrow,I will go to the countryside with my friends.If 引导的条件状语从句If 引导的条件状语从句遵循主过从过、主将从现的原则。
主将从现（主情从现、主祈从现）If you will help me,I'll finish it on time.We may go out if it's fine tomorrow.If you finish your homework,you can watch TV.Please call me if you go shopping next Sunday.If I go there，I'll take her some flowers.We'll stay at home if it rains tomorrow.Please call me if he’s at home.If you work harder,you’ll pass the exam.She will visit her grandpa if she has time tomorrow.We’ll take a taxi to the city if the train doesn’t arrive on time.The teacher will be angry if he is late.If引导的条件状语从句与unless引导的条件状语从句的转换If+否定形式=unless+肯定形式You won’t pass the exam if you don’t work hard.=You won’t pass the exam unless you work hard.If you don’t go to bed earlier,you will feel tired in the morning.=Unless you go to bed earlier,you will feel tired in the morning.If it doesn’t rain,he will play with me tomorrow.=Unless it rains,he will play with me tomorrow.If she doesn’t come,I’ll go shopping alone=Unless she comes,I’ll go shopping alone.if条件状语从句与祈使句,and/or＋一般将来时的句子转化If you get up early,you’ll get there on tim e.=Get up early,and you’ll get there on time.=Get up early,or you won’t get there on time.If you get up early，you won't be late for school.=Get up early，and you won't be late for school.=Get up early，or you will be late for school.If you don’t get up early,you won’t catch up with the early bus. =Get up early,and you will catch up with the early bus.=Get up early,or you won’t catch up with the early bus.if条件状语从句与without的句子转化If there is no water,we can't live.=We can't live without water.If there is no water,fish will die.=Fish will die without water.If you help me,I’ll finish the work soon.=With your help,I finish the work soon.if条件状语从句与祈使句,and/or＋一般将来时的句子转化If you get up early,you’ll get there on time.=Get up early,and you’ll get there on tim e.=Get up early,or you won’t get there on time.If you get up early，you won't be late for school.=Get up early，and you won't be late for school.=Get up early，or you will be late for school.If you don’t get up early,you won’t catch up with the early bus. =Get up early,and you will catch up with the early bus.=Get up early,or you won’t catch up with the early bus.1. your friend,I'll tell you.eB.will comeesD.are coming2. If you go to college，youa good education.A.will getB.getC.getsD.got3.I want to know if theytomorrow.eB.will come C comes D.came4.Take enough exercise,you'll be in good heath.A.orB.soC.butD.and5.If it(not rain),he(play)basketball with me tomorrow.6.If Uncle Lan ______(come),I______(call)you up.7.She must see a dentist if she______(have)a toothache.8.Please wake me up if he______(come)back.9.Hurry up！Or you ______(be)late again.10.If you don’t be quick,you(be)late.1.We won’t wait for youyou can’t arrive on time.A.untilB.whenC.afterD.if2.The children will go to the zoo if it(not rain)this Saturday.3.If shework hard,shebe able to go to colleage.A.not,notB.won’t,won’tC.won’t,doesn’tD.dpesn’t,won’t4.If I run every day,I(be)healthier.5.If it(not rain),he(play)with me tomorrow.6.She must see a dentist if she(have)a toothache.7.Study hard,or you(not pass)the test.8.If you(not go)to bed earlier,you will feel tired in the morning.9.If he(be)free tomorrow,he will come to your birthday party.10.We will go to the zoo if it(not snow)tomorrow.11.If it is fine tomorrow,I(go)for a filed trip.。
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重温一道引起思绪混乱的题........
After a wonderful meal, they told stories and sang songs by the campfire.
表示“在……之后”的句式：after+从句/doing/n.
after I arrived => After my arrival 在我到达之后
完成同义句转换：
when the plane arrived =
After his arrival, we have a party. =
=
时态使用重大的规则：（12字原则)
主过从过，主将从现，主现从任
【主将从现】
常见的有以下三种情况：
一、When/if引导的主句是一般将来时，从句用一般现在时。
I'll tell her the good news when she comes back.当她回来的时候，我将把这个好消息告诉她。
If it doesn't rain, he will come here on time.如果不下雨，他会按时来这儿的。
二、如果主句是祈使句，那么从句要用一般现在时。
Don’t laugh at me when I make a mistake. 我犯错误的时候不要笑话我。
三、如果主句是含有情态动词的一般现在时，从句多用一般现在时。
You should be quiet when you are in the reading room. 在阅览室时应保持安静。
【主过从过】
常见的有以下二种情况：
1.直接引语变成间接引语
2.宾语从句中，当主句的谓语动词为过去时态时，从句须用表示过去的某种时态。
例如：
He asked when they would go to the party.他问他们什么时候将去参加聚会。
Miss Green said she had been to Beijing before.格林小姐说她以前曾经去过北京。
【主现从任】
常见的有以下一种情况：
在宾语从句中，当主句的时态为现在的某种时态（一般现在时、现在进行时、现在完成时等）后面从句时态不受主句限制，可选用各种适合的时态。
例如：
Do you know when we'll have a football match?你知道我们什么时候举行足球赛吗？
You know he has gone to Shanghai.你知道他已去上海了。
【特别关注】
1.当宾语从句表述的是客观事实、科学真理、现在的习惯动作以及格言等时，只能用一般现在时。
例如：
The teacher told us that light travels faster than sound.老师告诉我们光速比音速要快。
2.如果主、从句表示的动作是一前一后发生的，则先前的用过去完成，在后的只能用一般过去时态。
When he got there, the train had left. 当他到那儿的时候，火车已经开了。
【小试身手】
1. If he ___ harder , he will catch up with us soon.
（04 北京）A. study B. studies C. will study D. studied 2. I will go swimming with you if I ___ free tomorrow.
（04哈尔滨）A. will be B. shall be C. am D. was
3.If you ___ a chance to study in a foreign country ,just take it .
（04 苏州）A. getting B. had got C. will get D. get
4. Don’t leave until he ___ back.（）
A. have come
B. comes
C. will come
D. came
5. “ Shall we have the volleyball match tomorrow?” “ Oh, it will be put off if it ____.（04 黄冈）
A. snows
B. is snowing
C. snowed
D. will snow
6.－Tell him about the news when he ____ ,John.
－Yes, I will.（04 宁波）
es
B.will come
C.would
D.is coming
7.Tomorrow we will go to the city park____ it is sunny.
（05 安徽） A.as soon as B. when C. if D. as
8.Please don’t leave until your teacher ___back.（05河南）A. will come B .came C. comes D. is coming
9 .I want to know if there ___a sports meeting next month . If they ___ it , I must get ready for it。
（05青岛）
A. is,will hold
B. will be, hold
C. will be, will hold
D. will have, hold
10. －Mary, what about going boating if it ___tomorrow.
－Good idea.
A. not rain
B. will rain
C. doesn’t rain
D. won’t rain
参考答案：1-5 BCDBA 6-10 ACCBC。