if引导的条件状语从句 引导的条件状语从句
观察下列句子,总结if引导的条件状语从句的用 法。 【例句】
  1. If you stand in the rain, you get wet.
  2. You get wet if you stand in the rain.
  3. If it doesn’t rain tomorrow, I will plant some flowers in my garden.
  4. I will plant some flowers in my garden if it doesn’t rain tomorrow.
【总结】 条件
  1. If表示 “”的意思, 引导状语从 如果 句。当表示条件成立就(必然/可能)有 必然 某种结果(常用于客观真理)时,主句和从句 都用时(例
  1、
  2);当表示条件成立 一般现在 就(必然/可能)有某种结果时,主句用 可能 一般现在 时,从句用时,简称“主 一般将来 将从现”(例
  3、
  4)。

  2. 当if引导的从句放在主句前时, 用 (用/不用)逗号隔开两个句子(例
  1、
  3); 当主句在前时,则 (用/不用)逗号(例 不用
  2、
  4)。
  3. 记记这个顺口溜吧! “if条件句不一般,几个要点记心间;条件句,放 在前,逗号要放句中间;条件句表可能,主句 多用将来时;条件句表事实,主句常用现在 时。”
一、请判断下面句子的正误,如果有误, 请判断下面句子的正误,如果有误, 请更正在后面的横线上。 请更正在后面的横线上。

  1. If you will do more exercise this summer, you will be very fit. will do → do
  2. The candle burns, if you light it. 把逗号去掉

  3. I will build many schools for the poor children if I win a billion dollars. 正确
  4. If you freeze water, it will turn into ice. will turn →turns
  5. My uncle visits the museum if he will have time. visits →will visit, will have →has
二、根据中文意思完成句子。 根据中文意思完成句子。
  1. 如果你不运动,你会变胖。 will . don’t do If you exercise, you get fat
  2. 如果我早完成作业,我会早点睡。 will I go to bed early if I finish my homework early.
  3. 如果你把水煮开,它会变成水蒸气。 boil If you water, it steam. turns into
Possible action d
  2. If you cool water, g
  3. If you boil water, a
  4. If you heat metal, h
  5. If you put wood into water, c
  6. If you plant seeds in soil, f
  7. If you drop a glass,
Result b.it dies. c.they grow. d.it turns into ice. e.they die. f.it breaks. g.it becomes steam.
b
  1. If you take a fish out of water, a.it melts
e
  8. If you do not give plants water, h.it floats.
A2

  1. If you water. (ice / heat ice, it turns into turns / heat / it / into) bursts if you stick a pin into
  2. A balloon it. (pin/a/if/stick/you/bursts/into)
  3. If you cool steam, it turns into water. (steam / into / cool / turns / it)
melts if you heat
  4. Metal it. (you/heat/melts/if) floats if you put it into
  5. Wood water. (you/put/if/floats/it) breaks if you drop
  6. A glass it. (drop/you/breaks/if)
B. If sentences: actions with possible results A If you write a shopping list, If you telephone your classmates, If you look it up in the dictionary, If you go to bed earlier, If you check your timetable every night, B they’ll tell you what homework to do. you’ll remember to get all the things. you’ll find out its meaning. you won’t feel tired in the morning. you’ll know which books to take.
( D)
  1. I’d like to play basketball with my good friends tomorrow if the weather nice. A. was B. has been A. will turn C. turns C. will be B. turn D. turned D. is ( C)
  2. If you heat ice, it into water.
(A )
  3. I was watching TV someone knocked at the door. A. when B. while C. if D. though
(A )
  4. Jenny heard the doorbell, she didn’t answer it. A. Although; / C. Though; but B. But; / D. Although;but
( B)
  5. My father told me that he back home the next week. A. will come C. came B. would come D. comes
将下列句子连接起来, 用if将下列句子连接起来 将下列句子连接起来 并注意动词的适当形式。 并注意动词的适当形式。
  1. You heat the ice. It melts. If you heat the ice, it melts.
  2. You pour water onto the fire. It is put out. If you pour water onto the fire, it is put out.
  3. You go to bed late tonight. You will feel tired tomorrow. If you go to bed late tonight, you will feel tired tomorrow.

  4. You are not tired. Let’s go for a walk. If you are not tired, let’s go for a walk.
  5. We will go climbing tomorrow. It won’t rain. If it doesn’t rain tomorrow, we will go climbing.
 

相关内容

七年级英语下册:Module 6 Unit 3 Language in use复习导学案(外研版)

   Module 6 The Olympic Adventure Unit 3 Language in use 复习导学案 课前诵读: 课前诵读: 1、 大声朗读本单元的单词。 、 大声朗读本单元的单词。 2、读 P36Language practice 、 预习检测 一、 词汇乐园 1、危险的 、 2、滑雪 、 3、令人厌烦的 、 4、relaxing 、 5、more6、safe 、 、 9、slow10、年轻的 、 、 语法闯关。 二、语法闯关。 Fill in the blanks wi ...

英语:Unit_1_Language_pointsPPT学案(新人教版选修7)

   Unit 1 Language points make it + adj. + (for sb )to do ( find , think, consider ….) 1. Too many new words make it difficult for us to comprehend the passage. They find it impossible to get everything reader in time. She thought it unnecessary to ar ...

仁爱版八年级英语下册Unit7教案3

   3eud 教育网 http://www.3edu.net 百万教学资源,完全免费,无须注册,天天更新! Topic 3 SectionA The main activities are 1 and 2a.本课活动重点是 1 和 2a。 Ⅰ.Teaching aims and demands 教学目标 1.Learn some names of food and drinks: beer,wine,curry 2.Learn to order and offer food and drinks ...

九年级英语Body Language课件

   Chapter 1 Body language Answer the following questions. 1 What’s the name of the man beside Hi and Lo? 2 What does he look like? 3 Would you like to say hello so such a man like him? 4 What is his problem? 5 There is another person in the picture. ...

高一英语Using Language课件3

   Elizabeth Fry (1780 - 1845) 更多资源xiti123.taobao.com 更多资源 In 1780 Elizabeth Gurney was born in Norwich into a rich Quaker family. Elizabeth was well educated, which was unusual for a girl in those days. Later, although Elizabeth had 11 children, she ...

英语:19.1《Language》课件(北师大版选修7)

   Unit19 lesson1 English Learning ks5u精品课件 1. How long have you been studying English? 2. Is it easy to learn English well? By what ways do you think can improve your English? 3. Why do we learn English? Is it important for us to learn English? ks5u精 ...

初一下学期英语学案Unit4 Language

   初一下学期英语学案 Unit 4 Electricity Language: Modal verbs (情态动词) 情态动词) 学习目标: 学习目标:1. 学习情态动词 can 及其否定式表示“能力”的用法。 2. .学习情态动词 may 及其否定式表示“允许、许可”的用法。 3. 学习情态动词 must 及其否定式表示“命令、义务”的用法。 要点解析: 要点解析: I. can & can not can 的意思是. 表示能力, 相当于. 当 can 解释为“可 以”, 表示许可时 ...

高二英语(选修七)unit 1 Language points

   Period 2 Language points Useful words and expressions: 1. in other words ( that is to say) 换句话说, 换句话说, 也就是说(用于解释前句得意思 用于解释前句得意思) 也就是说 用于解释前句得意思) 油价升了,换句话说,我们得多付钱了。 油价升了,换句话说,我们得多付钱了。 The price of gasoline has gone up. In other words, we have to pay ...

高一英语教学课件 Unit2 Language study

   Unit 2 Language points for reading 重点单词 [词条1]base [课文原句] It was based more on German than the English we speak at present. (Page 10) [点拨] base在这里作动词,意为“以……为依据”,常 用于短语be based on或者base on 又如: The film is based on a novel written by Ernest Hemingway. ...

高一英语必修二Unit1 Language points课件

   Language points 1. survive vi. 幸存,生还 幸存, n. 幸存者 survivor eg. The custom has survived for thousands of years. vt. 从…中逃生 经历…后继续存在 中逃生, 经历 后继续存在 中逃生 eg. Only two people survived the fire. Ex. 经过这次地震 三分之二的人活了下来 经过这次地震, 三分之二的人活了下来. Two-thirds of the peo ...

热门内容

电气自动化专业英语翻译9下

   电气自动化专业英语(翻译 9 下) 9.4 例子网络 许多网络目前正在全世界操作. 在公用草地旁边的一些这些上午公用网纳米送, 或者 PTTs, 其它人是 4 个研究网络,然而其它人是被他们的用户控制的合作的网络,并且 还有其它人是商业或者共同的网络. 在以后的章节内, 我们将花费一锁对使人们对他们是 (是)有所了解的一些当今和历史网络 类似人或物和他们怎样不同于一只花粉囊. 网络在他们的历史,管理方面不同,设备提供,技术设计和用户社区. 历史和管理 能从仔细通过一个单个的组织用一个明确的目 ...

如何上好中学英语口语课

   如何上好中学英语口语课 中学英语教学大纲规定,中学英语教学的目的,是对学生进行听、说、读、写的基本训练,培养学生在口头上和书面上初步运用英语的能力。因此, 听、说、读、写是学习语言的四个必要环节。而学英语,就其本质来讲,是一门实践课,要学好英语,就必须在口语会话等方面有所熟练,能够流利地用 英语进行交谈,听懂英语,所以,作为中学英语教师,我们有必要探讨和研究口语教学法,上好口语课。 口语教学的目的是培养学生的口头表达能力, 使学生能就日常生活中的一般情景进行恰当的交谈, 能就所听的材料或熟悉 ...

浅谈农衬初中英语口语教学

   浅谈农衬初中英语口语教学 当今进入了文化多元化,经济一体化,社会信息化的时代。为了适应社会发展的需要, 我们应该好好培养学生成才, 使他们学会在一个多元化的世界里生存和发展。 在他们成才的 过程中,掌握一门外语是必备条件。如果掌握了一门外语,就等于打开了一扇通往新的社会 与文化的大门。 英语在世界上得到最广泛的运用, 我们应该指导学生有逐渐掌握英语的方法 和能力。用它去交流思想,传播知识和信息。学习它的目的重在交际。 为此,现代的英语教学要老师用英语组织教学,为真实交际打下基础。但一直以来, ...

小学英语单词分类表

   小学英语单词分类表 小学英语单词分类表 分类 一、学习用品(school things) pen 钢笔 pencil 铅笔 pencil-case 铅笔盒 ruler 尺子 book 书 bag 包 post card 明信片 newspaper 报纸 schoolbag 书包 eraser 橡皮 crayon 蜡笔 sharpener 卷 笔刀 story-book 故事书 notebook 笔记本 Chinese book 语文书 English book 英语书 maths book ...

英语句子之国贸篇

   学习英语到能飞英语学习平台(www.langfly.com ) 贸易 3 hertz 赫兹 hesitate 犹豫 Hook Damage 钩损险 I.C.C.(Institute Cargo Clauses) 协会货物条款 I.S.O.(International Standard Organization) 国际标准化组织 I/L(import licence) 进口许可证 IBRD loan 世界银行的贷款 IBRD(international bank of reconstructi ...