if非真实条件句
if引导的条件状语从句的题目
if引导的条件状语从句的题目
if引导的条件句有两种:真实条件句和非真实条件句。
真实条件句是叙述真实可能发生的事情，非真实条件句：虚拟语气的一种，表示与实际已发生事实相反。
如果从句表示将来要发生的事情，从句通常用一般现在时，主句用一般将来时态，即主将从现原则。
如果主句中含有will、may、can、might等情态动词时，从句通常用一般现在时。
如果主句是祈使句，从句通常用一般现在时。
如果表示的是客观事实或普遍真理，从句和主句通常都用一般现在时。
if引导的条件状语从句的考试题目：
1．If+主+谓+其它，主+will+动词原形+其它，例句如下：If it rains tomorrows,i will stay at home.
2．If+主+谓+其它，祈使句（注意：此时主句是个祈使句），例句如下：If you go to work tomorrow, don’t be late.
3．If+主+谓+其它，主+情态动词+动词原形+其它，例句如下：If you come here tomorrow, he can help you.。
英语—虚拟语气
if 引导的非真实条件句的三种形式：If I were a bird, I would fly to you. 我要是鸟，就飞过去看你。
If I had much money, I would buy that big dictionary. 要是我有很多钱，我就买那本字典。
If I did this, he might be very angry. 要是我做了这件事，他可能会生气的。
If he were free tomorrow, he would go camping with us. 要是他明天有时间，他就和我们一起去野营了。
If you tried harder next time, you would make it to the top of the hill. 要是你下次再努把力的花，就能到达山顶了。
注意：对将来情况的虚拟，从句有时还可以用if +should+动词原形和if +were to + 动词原形两种形式，前者有 “可能性很小”、“万一”的含义，后者有“不可能”的含义。
如：If you should fail , what would you do ? 假如你失败的话，你会怎样？If he should be sick, he would send for a doctor. 如果他生了病，他会让人请医生的。
If he were to resign, we should bevery happy! 要是他辞了职，我们该多高兴啊！If you had constantly done physical training, you wouldn ’t have been so weak. 如果你一直锻炼身体的话，你的身体就不会这么虚弱了。
If the night had not been pitch-dark, we shouldn ’t have lost our way. 要不是天漆黑，我们是不会迷路的。
if条件句
If I had a lot of money now, I would travel the world.
a wish
If条件句:真实条件句 和非真 实条件句 两种。
a. 真实条件句：条件是真的或有可能实 现的, 采用陈述语气。
b. 非真实条件句：条件是无法实现或几 乎无法实现的, 采用虚拟语气。
主句与从句的动作发生在不同的时间, 这时主从句位于动词的虚拟语气形式因 时间不同而不同, 这叫做混合条件句。
例句中从句与过去事实相反, 主句与 现在事实相反
If you had asked him yesterday, you would know what to do now.
If the staff had been more careful, the mall would not be on fire now.
b. If you _h_a_d__g_o_t (get) up earlier, you w__o_u_ld__h_a_v_e__ca_u__g_h_t (catch) the first train.
c. If I _h_a_d_m__e_t (meet) you yesterday, we w__o_u_l_d_h_a_v_e__g_o_n_e (go) to the concert together.
3. 与将来事实相反
从句的谓语用If I (we, you, he, they) ＋ 动词过去式或 were to do 或should do 形式, 主句谓语用should(第一人称) /would (第二、三人称) /could/ might ＋ 动词原形。
If he got up early, he would be on time.
if引导的条件句是什么从句
if引导的条件句是什么从句if 引导的条件句有真实条件句和非真实条件句两种；1、真实条件句：叙述真实可能发生的事情；例句：If you fail in the exam,you will let him down.如果你考试不及格，你会让他失望的。
扩展资料2、非真实条件句：虚拟语气的一种，表示与实际已发生事实相反：例句：If I were you, I would invite him.如果我是你，我会邀请他。
3、另一个常用连词为unless,大多数时候意思与 if not 相近：例句：Let's go out for a walk unless you are too tired.我们出去散步吧，除非你太累了。
例句：If you are not too tired, let's go out for a walk.如果你不太累，我们出去散步吧。
条件状语从句的基本用法1、用if引导：if意为“如果”。
例句：If you cheat in the exam you’ll never get away with it.考试作弊必予追究。
2、用unless引导：unless的意思是“如果不”“除非”。
例句：Unless you go at once you will be late.如果你不马上走，就会迟到的'。
3、用as [so] long as引导：as [so] long as的意思是“如果”“只要”。
例句：I’ll remember that day as long as I live.只要我活着，我就不会忘记那个日子。
4、用in case引导：in case用连词引导条件状语从句时，其意为“如果”“万一”。
例句：In case I forget, please remind me about it.万一我忘记，请提醒我一下。
5、条件状语从句的时态：当主句为将来时态或含有将来意义时，条件状语从句习惯上要用一般现在时表示将来意义，而不能直接使用将来时态。
虚拟语气讲解
If I had a million dollars now, I would…
如果我有一百万美元，我会为我的家人买一座别墅。 If I had a million dollars now, I would buy a villa(别墅) for my family. 如果我有一百万美元，我会环游世界。 If I had a million dollars now, I would travel around the world. 如果我有一百万美元，我会去购物。 If I had a million dollars now, I would go shopping. 如果我有一百万美元，我会把它捐给慈善机构。 If I had a million dollars now, I would donate it to a charity organizaall match We would have won the match 如果杰克踢进那个球(score that goal), 如果我们还有多几分钟,
如果我们更加刻苦地训练,
如果本(Ben)把球传给了乔(Joe), 如果有成千的球迷为我们尖叫(scream for us), 如果我死死的盯住球(take one’s eyes off sth)， 如果我前个晚上不熬夜(stay up late)， 如果我们没有掉以轻心(take it easy)， 如果我们没有精疲力竭(run out of), 我们本来是会得冠
虚拟(非真实)条件句 主句
与现在 事实相 反的假 设 与过去 相反的 假设
If+主语+动词的过去式 （动词be用were)
主语+should/
If+主语+had +过去分词
虚拟语气总结
虚拟语气1、if非真实条件句的虚拟语气其动词的主要形式例句：1）If I were the major of Beijing, I would try to solve the problem of transportation. （对现在的假设）如果我是北京市市长的话，我会努力解决交通问题。
2）If you had attended yesterday’s meeting, you would have known the result of election. （对过去的假设）如果昨天你参加了那个会议，你就会知道选举的结果。
3）If he should have much money tomorrow, what might he do? （对将来的假设）要是他明天有了大笔钱财，他将干什么？2. 省掉if的倒装语序如果非真实条件句中的谓语动词中含有were，had或should，则通过主谓倒装方式可以省略连词if,将were, had, should提到主语前。
例如:1) If he should refuse to appear in court, he might be held guilty.Should he refuse to appear in court, he might be held guilty.他如果拒不出庭，也许会被认为有罪。
2) If they were to miss the 10 o’clock train, they wouldn’t get there on time.Were they t o miss the 10 o’cloc k train, they wouldn’t get there on time.要是他们赶不上10点的火车，他们就不会按时赶到那了。
3) If she had gone there alone, she would have been in trouble.Had she gone there alone, she would have been in trouble.要是她独自去哪的话，她就会遇到麻烦了。
虚拟语气用法小结
例如：
It is necessary that he be sent to prison at once. It is best that workers have a pleasant place to relax.
3、用于表语从句或同位语从句中。 请注意下列名词：
suggestion, idea, plan, proposal, recommendation, advice, decision, instruction, insistence, preference, necessity, requirement, resolution, motion, desire… 以上名词后出现的表语从句或同位语从句 中，谓语动词采用(should)+ 中，谓语动词采用(should)+ 动词原形构成 虚拟语气。
1、例如：
I suggest that he (should) go at once. In the past man generally preferred that their wives work at home.
2、用于主语从句中
It is desired (suggested, requested, ordered, decided, arranged, recommended…) that… It is strange (necessary, incredible, urgent, possible, essential, advisable, natural, important, preferable, ridiculous, vital, insistent, best, better…) that… It is a pity (shame, must…) that… 上述结构引起的主语从句中谓语动词采用 (should)+ 动词原形构成虚拟语气。
if引导的非真实性条件状语从句即虚拟语气（最新整理）
if引导的非真实性条件状语从句即虚拟语气（最新整理）if 引导的非真实性条件状语从句即虚拟语气通过动词形式的变化来表示说话人对发生的动作或存在的状态所持的态度或看法的动词形式称为语气。
.英语中的语气分三种：陈述语气、祈使语气、虚拟语气。
虚拟语气表示说话人所说的话不是事实，而是一种祝愿，建议，与事实相反的假设或实际可能性不大的情况等（即非真实的假设）。
If 引导的条件状语从句分为真实和非真实条件句（虚拟条件句）。
真实条件句表示在假设的条件下，有可能实现的情况。
非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。
If he doesn’t hurry up, he will miss the bus.( 真实条件状语)If he was free, he asked me to tell stories.（真实条件状语）If I were you, I would go at once.（非真实条件状语从句）If there was no air, people would die.（非真实条件状语从句）1）非真实条件句中虚拟语气的基本形式。
假设类型条件从句的动词结果主句的动词与现在事实相反动词过去式（be只用were）would/should/could/might + 动词原形与过去事实相反had+过去分词would/should/could/might + have + 过去分词与将来事实相反动词过去式/(should/were to)+动词原形would/should/could/might + 动词原形①与现在事实相反If I had time, I would go for a walk.如果我有时间，我就会去散步。
(实际情况：我现在没有时间，也不会去散步。
)If I were you, I would take an umbrella.假如我是你的话，我会带上雨伞。
(事实上我不可能是你。
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1.I am sure that Huston Rockets ___ the game, if Yao Ming’s knee had not been hurt.
A. would win
B. might have won
C. will win D, could win
2.____ the truth, he wouldn’t have lent her any money.
A. Jack has known
B. If Jack known
C. Should Jack know
D. Had Jack known
4. Given more time and money, he ___ better than what it is.
A. did
B. had done
C. could have done
D. would do
5. Without your encouragement and support, we ___ .
A. should not succeeded
B. would not succeeded
C. would have succeeded
D. would not have succeeded
6. The same thing, happening in war time, ____ great disaster.
A. will amount to
B. amounted to
C. would have amounted to
D. would amount to
7. If I ___ the job, I would do it in a different way.
A. would do
B. do
C. shall do
D. were to do
8. He ___ ten lectures on American history, but he.only gave two because of his illness.
A. had given
B. gave
C. should have given
D. must have given
9. Any man in his position ___ like that.
A. have done
B. would have done
C. would be done
D. would be doing
10. Five minutes earlier, I ___ the flight.
A. have caught
B. had caught
C. could have caught
D. were to catch
11. Our director was absent. Otherwise, I ___ the chair.
A. would not take
B. didn’t take
C. hadn’t taken
D. wouldn’t have taken
12. If you explained the situation to your lawyer, he ___ able to advise you much better than I
can.
A. would be
B. will have been
C. was
D. were
13. __ you __ further problems with your printer, contact your dealer (经销商) for advice.
A. If, had
B. Have, had
C. Should, have
D. In case, had
14. Had Judy been more careful on the maths exam, she ___ much better results now.
A. would be getting
B. could have got
C. must get
D. would get
15. If there were no subjunctive mood, English ____ much easier to learn.
A. could have been
B. would be
C. will be
D. would have been。