First_Conditional第一或者真实条件句
英语语法知识点详解 零条件句
英语语法知识点详解零条件句In English, there are four types of conditional sentences:英语中有四大类型条件句：0 – The Zero Conditional 零条件句1 – The First Conditional 第一类条件句2 – The Second Conditional 第二类条件句3 – The Third Conditional 第三类条件句Each conditional sentence has an IF clause, and a main clause. And all the four types of conditionals use the conjunction IF.条件句由两个组成部分：IF从句+ 主句。
四大类型条件句均使用连词IF。
The IF clause gives us the condition or situation, and the main clause gives us the result. The Zero and the First Conditional express real or possible conditions and results. The Second and the Third Conditional express impossible, hypothetical, unreal conditions and results.IF从句提供条件或情况，主句描述产生的结果。
零条件句和第一类条件句描述真实或可能发生的条件和结果。
第二类条件句和第三类条件句描述不可能发生的、假设的、不真实的条件和结果。
With all conditional sentences, the order of these clauses is not fixed. So, you can swap them around. And even when you change the order of the clauses, the meaning is the same. In writing, if your IF clause comes first, add that comma. If your main clause comes first, you don’t need a comma.在所有类型的条件句中，IF从句和主句的顺序可以互换。
Grammar Conditional
2. Will you go out with me on Saturday night if you finish the project?
3. If you go to that website, you’ll find some interesting information.
2) If you had got up earlier, you could have caught the train.
如果你早一点起床，就会赶上火车的。
与过去相反的句型
条件从句
条件从句的谓语形式 主句的谓语形式
与过去相反
If I (you, he/she, they, should/would/could/ we )+had +过去分词 might+have+过去分
3. Second Conditional第二条件句，又称“虚拟 条件句，非真实条件句”。②表示现在不可 能存在的状态。（亦称为对现在的虚拟。）
1）If I were you, I would try it again. 如果我是你，我会再试一次。
2）If I had one million dollars, I ，我会买下这架飞机。
2) If he were to come here tomorrow, I would tell him.
3) If he should fail in the experiment this time, he would try again.
与将来相反的句型
条件从句 条件从句的谓语形式
主语的谓语形式
If you made a noise, the library worker would ask you to go out.
英语第一节：第一条件句(1)
二 结构
主句
从句
口诀巧记
例句
一般将来时
一般现在时 主将从现 If I go to Australia, I will see the kangaroos.
含有情态动词
一般现在时
If we go to Spain, we can learn to dance 主情从现 flamenco.
A. Went to the park
C. Let’s go to the park
B. Will go the park
D. Goes to the park
3
知识加油站
第一条件句 First Conditional
一 定义
谈论可能发生的事情，并考虑这件事情的结果。
If I find her address, I’ll send her an invitation.
A. tell
B. told
C. will tell
D. tells
4. I_________ at home if it rains tomorrow.
A. stayed
B. stays C. may stay
D. may stays
5. _________ if it is sunny tomorrow.
Lesson 1 First Conditional 第一条件句
课程目标: 1. 掌握第一条件句的定义，结构，时态重点 2. 了解含有情态动词，祈使句的第一条件句的结构
3. 应用 if 与 unless 的相互转换
1
课前大冒险
混合条件句
3. he wouldn’t have got a part in a soap opera. 4. his photo wouldn’t have appeared on the cover of a popular magazine.
Mixed Conditionals
3+2 If sb. had done, sb. would do
*表示与过去事实相反的某一条件 给现在带来的结果或影响
2+3 If sb. did, sb. would have done *表示与现在事实相反的某一条件 给过去所带来的影响
Page80 The key of Ex.1
1.如果他多得6票,他现在就是我们的主席了. If he had received six more votes, he would be our chairman now. 2. 如果医生昨天晚上早点来, Amy今天还活着. Amy would be alive today if the doctor had come sooner last night. 3. 如果今天有洪水,明天就会停课. If there were a flood today, there would be no classes tomorrow.
5. he wouldn’t have married a pop star.
Page80 The key of Ex.1
5. If Paul hadn’t failed his exam, he wouldn’t have to take it again. 6. If Lucy hadn’t been very proud, she wouldn’t reject their help. 7. If I had been fit, I would go mountain climbing.
02 level 7 unit1 lesson1 02 语法 真实条件句First conditional
01A01B第一条件句First conditionalUse a first conditional statement to communicate what will result if some event happens. First conditional sentences have two clauses. One clause has the word if + a condition. The second clause is the result clause. It has a verb in the future with the modal will.使用第一条件陈述句来表示如果某一事情发生而将引起的结果。
第一条件句由两个分句组成。
一个使用if + 一种条件，另一个是结果从句，句中动词为将来时态，使用情态动词will。
If we buy an electric car, it will help the environment.如果我们购买电动汽车，这样将会对环境有益。
If the city changes to natural gas, air quality will improve.如果城市转用天然气，空气质量将会改善。
你也可以在结果从句中使用诸如can 之类的情态动词。
You can also use modals like can in the result clause.If I save my money, I can buy an electric car next year.如果我现在省钱，明年就能买一辆电动汽车。
02请听一男一女谈论购买电动汽车。
请选择正确的答案。
Listen to a man and a woman talking about buying an electric car. Select the correct answer.The man says, 'If you buy an electric car, _____.'you will save money on gasyou are intelligentyou get money backThe woman says, 'If I buy an electric car, _____.'she won't save money on gasI won't have money for foodit won't cost a lotIf the woman starts saving money now, _____.she'll have one hundred dollars soonshe can buy an electric car much later她很久以后就能买一辆电动汽车了she should be able to buy more gasoline文本自行整理：I can't believe it. I just spent $100 on gasoline.Wow, that is awful. You should buy an electric car. If you buy an electric car, you will save a lot of money on gas.I know, I know. That would be smart. But if I do buy an electric car, I won't have money for food.It still cost a lot. If you do get one, you'll be the coolest person in the neighborhood.Right, and if you be cooler riding with me.Exactly. Well, maybe if I start saving money now I can buy an electric car in 10 years我简直不敢相信。
conditionals and prefix(1)
4.My best friend didn’t study hard, and therefore, he failed to get into university through the college exam.
If my best friend had studied hard, he wouldn’t have failed to get into university through the college exam. 5. Jay Chow isn’t here now, so I don’t ask him to sing songs. If Jay Chow was here, I would ask him to sing songs.
Mixed Conditionals(混合条件 错综时间条件句 混合条件/错综时间条件句 混合条件 错综时间条件句) 第二、三条件句中，主从句谓语动词所发生的时间不同， 第二、三条件句中，主从句谓语动词所发生的时间不同， 则谓语动词要分别用相应的第二或第三条件句的动词形式。 则谓语动词要分别用相应的第二或第三条件句的动词形式。
3.表示建议或命令的条件句 主句用祈使句。 表示建议或命令的条件句, 主句用祈使句。
If the seat belt light is on, don’t leave your seat.
If +present simple, will +do modal verb+do imperative( 祈使句)
发生在过去，用第三条件句动词形式 发生在过去，
指现在的状态， 指现在的状态，用第二条件句动词形式
He didn’t break the record, so he isn’t famous now.
第一、二条件句
We use the above mentioned sentence pattern to express First Conditional. （我们用上面提到的句型来表达第一 条件句） We use First Conditional to talk about possible situations in the future.（我们 用第一条件句来表达将来的可能发生 的情形）
Besides „would‟, we can also use „could‟ and „might‟ in main clause.
Attention: 1)Unreal Conditional(真实条件句）
2) In the Second Conditional, “be” should be written as “ were” regardless of the subject .（be 动 词通常在第二条件句中用were 的形式）
You are asked to complete the conditional sentences by talking about yourselves.
Let’s do more exercises on p13 E6.
Write these sentences as First Conditionals.
Will Julia go with Dan for dinner at McDonald’ ?
To answer the question correctly, we need to learn the Second Conditional.
We use the Second Conditional:
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高考英语语法词汇专项突破：04条件状语从句考点扫描+巩固练习+答案
高考英语语法词汇专项突破：04条件状语从句考点扫描+巩固练习+答案(Adverbial clause of condition)【考点导航】【考例1】（2019·天津卷）Tom is so independent that he never asks his parents' opinion _________ he wants their support.A. sinceB. onceC. unlessD. after答案与解析：C。
考查连词辨析。
句意：汤姆是如此独立，以至于他从来不征求父母的意见，除非他想得到他们的支持。
since由于；once一旦；unless除非；after在……之后，依据题意，故选C。
【考例2】（2018年北京）_________ we don’t stop climate change, many animals and plants in the world will be gone.A.AlthoughB.WhileC. IfD.Until答案与解析：C。
考查状语从句。
句意：假如我们不阻挡气候变化，那么世界上的很多动植物都将会消逝。
动植物不灭亡的前提条件是阻挡气候变化。
although尽管；while当……时候，尽管，然而；if假如；until直到。
故C选项正确。
【考例3】（2018年江苏）_______ you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two nights.A. OnceB. UnlessC. IfD. When答案与解析：B。
考查连词词义辨析及语境理解。
句意：除非你睡得好，否则一两个晚上之后，你会失去专注、方案和保持动力的力量。
A. Once一旦；B. Unless除非；C. If假如；D. When当……时候。
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6. You ________ heart disease if you eat too much meat. A. get B. will get 7. If you don't put so much sugar in your coffee, you ________ so much weight! A. don't put on B. won't put on 8. You won't pass the course if you ___. A. don't study B. won't study
Unless in first conditional sentences
Model :
The problems of climate chang won`t go away, unless we do something about the cause.
Unless we do something to stop gobal warming now, there may be many
3. She _______ completely different if she cuts her hair. A. looks B. will look 4. You'll pay higher insurance if you ________ a sports car. A. buy B. will buy 5. You ________ better if you turn on the lamp. A. are able to see B. will be able to see
Make sentences about the pictures. Use if +will/won`t ,might (not) or may(not)
eg.If the boy doesn`t get up now, he will be late for school.
eg.If the man keeps watching TV now, he won`t finish the documentary work.
2.Speak with your partner using first conditional sentences after school.
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First Conditional
（第一条件句/真实条件句）
--Apple
Objective
To practice using First Conditional sentences.
Model :
If the temperatures continue to rise, the ice at the poles will melt. If the ice melts, sea levels will rise.
other dramatic changes in the future. Unless means if not unless we do something =if we don`t do something
Answers for reference (P27)
plete the exercise on exercise book.
We’ll have lessons in the classroom, if it rains tomorrow. We’ll visit the museum if it rains tomorrow.
If there are (be) more cars on the road in the future, there will be(be) more pollution. If pollution increases (increase), more plants and animals will die (die).
Exercises
1. If you ________ an apple every day, you'll be very healthy. A. eat B. will eat 2. If we don't protect the elephant, it ________ extinct. A. becomes B. will become
• Sometimes, we use shall, can, or may instead of will, eg. If you are good today, you can watch TV tonight.
What will you do if it rains tomorrow?
I will stay at home if it rains tomorrow.
Answers for reference (P27)
b
2 are will be 3 see will give 4 increases will die 5 won`t tell don`t come 6 will be see
c
2 will go go 3 will buy go 4 don`t go will do 5 doesn`t give will do 6 phone will talk about
Read the sentences.
1. If I don’t finish my project on the history of the Internet for next Monday’s lesson, the science teacher will be angry. 2. If I stay home, I’ll help you with your project if you like. 3. If it’s good, Dad, Mum and I will probably go camping. 4. If you go to the Science Museum website, you’ll find lots of good information.
9. If a deer ________ into your garden, it ________ all your plants. A. gets ... will eat B. will get ... eats
10. If I ________ some eggs, how many ________? A. cook ... will you eat B. will cook ... do you eat
Rule:
If If Conditional present simple Result will+base verb
First Conditional: real possibility
The first conditional is a structure used for talking about possibilities at present or in the future. There is a real possibility that this condition will happen.