8下u5讲义(答)
2020人教新目标八年级英语下Unit5讲解及习题(答案)
2020人教新目标八年级英语下Unit5讲解及习题（答案）二、重点句型1. — What were you doing at eight last night?昨晚8 点你在干什么？— I was taking a shower.我在洗淋浴。
2. When it began to rain, Ben was helping his mommake dinner.当开始下雨的时候，本正在帮他妈妈做晚饭。
3. — What was Jenny doing while Linda was sleeping?琳达在睡觉的时候，珍妮正在干什么？— While Linda was sleeping, Jenny was helpingM a ry with her homework.琳达在睡觉的时候，珍妮正在帮玛丽做作业。
Section A1.What were people doing yesterday at the time o f the rainstorm?昨天当暴风雨来临的时候人们正在做些什么？【解析1】过去进行时过去进行时态⑴.用法：①过去某个时间正在发生的动作He was cooking at six last night. 昨天晚上六点，他正在做饭。
②过去某段时间正在发生的动作I was staying here from March to May last year.去年从3月到5月，我一直呆在这里。
⑵.与过去进行时连用的时间状语，常见的有at nine last night/ at that time= then/at this time yesterday /或有when the teacher came in/ while he was reading的提示⑶过去进行时的构成：was\were +现在分词⑷过去进行时的四个基本句型肯定句He was cooking at six last night.否定句He was not cooking at six last night.一般疑问句Was he cooking at six last night?两个回答Yes ,he was. No, he wasn’t.特殊疑问句What was he doing at six last night?⑸过去进行时的固定句型Jim was reading when the teacher came in. 当老师进来的时候，吉姆正在读书。
初中英语 人教版八年级下册Unit 5 What were you doing when the rainstorm came重点精讲(含答案)
Unit5What were you doing when the rainstorm came?【短语】at the time of go offwait for sb./sth at this time yesterday wake up run to…pick upbegin/start to do sth.begin/start doing sthrain heavily heavy rain（雨大、雪大用heavy—heavily）strong wind（风大用strong---strongly）make sure（that）从句/make sure to do sth.feel like/feel like doing sth=would like/want to do sthat first fall asleepdie down wake upin a mess clean uphear of/about. hear from sb.take downmake one’s way to…（当后接地点副词时，应省略介词to）in silence=silently keep silent/keep quiet at that time[翻译]1.下暴雨时我在街上。
2.下暴雨时那个女孩在做什么？3.当下大雨的时候Ben正帮他妈妈做晚餐。
风平息后我最终入睡了。
4.我的房间很乱，我不得不清理它。
5.当运动会开始的时候，John正前往学校。
6.我们沉默地吃完了剩下的晚餐。
【语法】1. What were people doing yesterday at the time of the rainstorm?【解析1】过去进行时过去进行时态⑴用法：过去某个时间/某段时间正在发生的动作He was cooking at six last night.I was staying here from March to May last year.⑵时间状语：at nine last night/ at that time= then/at this time yesterday/when the teacher came in/while he was reading的提示⑶构成：was\were +现在分词2.I wait for the bus when it began to rain heavily.【解析】heavily adv在很大程度上heavy adj.沉重的How heavy are you?heavily adv沉重地The army lost heavily形容风大的时候常用strong/hard,形容雨雪下得大的时候用heavily/hard【注】heavy改y为i+ly变为adv,类似的adj还有：Hungry-hungrily；happy-happily angry-angrily Lucky-luckily3.While用法：While Linda was sleeping, Jenny was helping her mom do housework.[翻译]1.昨晚我打电话给你你没接，你那时候在做什么?2.妈妈在做家务时爸爸在看电视。
人教版英语八下 Unit5 讲义
Unit5 What were you doing when the rainstorm came?一、重点词汇及拓展1. rainstorm n.暴风雨storm n.暴风雨a heavy/serious rainstorm 一场大的暴风雨e.g. What were you doing at the time of the rainstorm? 当暴风雨来临的时候你正在做什么？windstorm n.风暴brainstorm n.头脑风暴sandstorm n.沙尘暴2. alarmn. 闹钟alarm clock 闹钟n. 警报器a fire/smoke alarm 防火/ 烟火警报器false alarm 虚假警报；虚惊一场（口语中常用来表达乌龙事件）v.警告3. go off(闹钟)发出响声e.g. A car alarm went off at night. 在晚上一辆汽车的警报器响了起来。
(指电力) 中断；(指电灯) 熄灭e.g. Suddenly, the lights went off. 灯光突然熄灭了。
go短语总结：go up 上升；增长go over 复习；仔细检查go through 浏览；经历；度过；仔细检查go across= cross 穿过；go away 离开；走开go back 返回；追溯到...go out of 从......出来；go out of one’s way to do sth. 格外努力做某事；4. begin v.开始begin-began-begunbegin to do/doinge.g. I began reading this novel last month. 我上个月开始读这本书。
to begin with 一开始；首先begin with=start with 以......开始近义词：start v.开始；发动（汽车引擎）start to do/doingbeginning n. 开始at the beginning of 在……开始的时候近义词：start n.开始5. heavily adv.在很大程度上；大量地e.g. It is raining heavily. 雨下得很大。
仁爱英语八年级下册Unit5 Topic2 讲义
Unit 5 Topic2一.重点单词(所有程度学生都要掌握)feel (v.) ——feeling(n.) usual(adj.)——usually (adv.)lovely(adj.)——love(v.) helpful(adj.)——help(v.)useless(adj.)——useful (反义词)——use (v.) elder(adj.)——old (原级)sadness(n.)——sad(adj.) unfair(adj.)——fair(反义词)二·词组（△的程度较差可以不掌握，中、上学生需全部掌握）Section A1.look worried 看起来担心2.seem to do /seem +adj. / It seems that+ 从句似乎……3.do badly in 在……做得不好do well in 在……做4.be strict with sb. 对某人严格要求be strict in sth. 对某事严格要求5.feel lonely 觉得孤单6.live alone 独自居住7.have a talk with…= talk with sb. 与某人谈话8.be worried about = worry about 对…感到担心9.be lost 丢失10.fall down 倒塌11.take it easy 放轻松Section B12.fail the exam 考试不及格13.get these feelings 有了这些感受14.at your age 在你这个年龄15.make friends with sb. 和某人交朋友16.tell me jokes tell sb. sth.= tell sth to sb. 给我讲笑话17.make me laugh make sb. do 使我发笑18.by the way 顺便问一下19.have problems with sth. 在某方面有问题20.know little about Chinese 对中文了解很少21.ask sb. for help 向某人求助Section C22.How time flies! 时光飞逝23.wish to do sth 期待做某事24.what’s more 而且，更有甚者25.as usual 像平时一样26.be/get used to doing sth / sth 习惯于做某事used to do sth. 过去常常做某事27.with the help of sb. = with sb’s help 在某人的帮助下28.be afraid to do sth. 不敢做某事29.make faces 做鬼脸Section D30.deal with…处理31.for example 例如32.lose one of your friends 失去你的一个朋友33.learn sth. from sb. 向某人学习34.elder brother 哥哥35.in a car accident 在一场车祸中36.refuse to do sth. 拒绝做某事37.be angry with 对……生气38.even though / if 即使39.no longer= not …. any longer 不再做……40.stay in his room by himself= stay in his room alone 独自呆在房间里三．重点句子(所有程度学生都要掌握)Section A1.What seems to be the problem?到底是怎么回事？seem 意为：好像，似乎，是系动词，常用于以下结构：seem + adj.seem + to do sth.It seems that + 从句例： You seem very happy. 你看去去很开心。
人教版本英语初中八年级的下unit5讲解及练习.doc
Unit 5 What were you doing when the rainstorm came?Section A1. What were people doing yesterday at the time of the rainstorm.1) 本句为过去进行时态，表示在过去某时间某动作正在发生，由“助动词was/were+v.-ing”。
--- What were you doing at nine yesterday morning?---I was playing in the park.2) at the time of 在 ......的时候What were you doing at the time of the earthquake.2.My alarm didn ’ t go off so I _______ up late.Go off 意为”（闹钟）发出响声The alarm went off at 6:30.A car alarm went off in the middle of the night.3. I ______ to the bus stop but I still missed the bus.我 __________ 到公共汽车候车亭，但我还是没赶上公共汽车。
Hurry up, or you will miss your train.I got up late so I missed the early bus.拓展： 1） miss 作及物动词，意为“想念、思念”2） miss 作及物动词，意为“缺课”4. 。
When the rainstorm suddenly came, what were you doing?1)此处when 作从属连词，意为“当。
时候”，引导时间状语从句，其谓语动词既可以是非延续性动词，也可以是延续性动词，谓语动词动作发生的时间可以与主句的谓语动词的动作是同时、之前后之后。
仁爱英语八年级下册unit5知识点讲解
仁爱英语八年级下册unit5知识点讲解仁爱英语八年级下册 Unit 5 知识点讲解Unit 5 的主题是“My future life”。
本单元主要介绍未来的职业和人生规划，既包含了在学校的学习规划，也包含了在职场上的规划。
下面将逐一介绍本单元的各个知识点。
一、词汇1. 寻找工作的词汇：apply, interview, vacancy, resume, references, covering letter, job offer, training2. 工作所需的能力和技能：language skills, interpersonal skills, technical skills, problem-solving skills, communication skills3. 不同职业的名称：architect, journalist, musician, athlete, entrepreneur, politician, accountant二、语法1. 将来时的用法：用于表示将来某个时间或事件发生，由will 或be going to构成2. 陈述句的一般将来时：主语 + will + 动词原形3. 陈述句的be going to将来时：主语 + be(am / is / are) + going to + 动词原形4. 一般将来时的用法：表示意愿、意图、承诺、推断等意思5. be going to将来时的用法：表示计划、打算、预测等意思三、听力本单元的听力重点在于聆听访谈和问题回答。
1. 聆听访谈：在聆听访谈时，要注意听讲者介绍自己的职业、工作的内容和所需技能等信息，同时需要注意聆听讲者对未来的规划和计划。
2. 问题回答：在问题回答时，要注意理解问题的内容并准确回答问题，同时需要注意表达清晰、有条理。
四、口语本单元的口语训练主要围绕职场交流展开，需要掌握各种职场用语和表达技巧。
1. 自我介绍：需要准备一份简短的自我介绍，介绍自己的姓名、职业、技能和未来规划等信息。
2018仁爱英语8年级下册Unit5Topic1学科讲义(有答案)
Unit 5 Topic 1 I’m so happyU5T1SA1 How are you doing? =How are you?你们好吗？多用于熟人之间的问候。
【即时演练】---Long time no see ,Joyce.---Everything is OK.Thanks.A.How are you doing ?B.How do you do ?C.What are you doing ?D.What do you do ?2 invite sb. to do sth. 邀请某人做某事invite sb. (to sp.) 邀请某人（到某地）e.g. Li Ming invited me to his party yesterday evening.昨晚李明邀请我参加他的聚会。
【即时演练】---Would you like to invite Mr. Wang sports with you ?---Yes,I’d love to.A.to playB.to lookC.playingD.looking3 one of + 形容词最高级+可数名词复数……中最……之一e.g. Tom is one of the most lively boys in our class.汤姆是我们班最活跃的男生之一。
“one of +可数名词复数”作主语时，谓语动词用单数形式。
e.g. One of the bags is mine. 其中一个书包是我的。
【即时演练】Small Apple is (最受欢迎的···之一）songs on the Internet in 2014.4 say thanks to sb.向某人表示感谢。
类似的短语还有:say hello to sb.向某人问好；say good-bye to sb.向某人告别；say sorry to sb.向某人道歉。
初中英语优能学校讲义新目标八年级下册Unit 5
新目标八年级下册Unit 5 What were you doing when the rainstorm came? 讲义一、词性转换Section A1. begin →(pt.) began2. heavily →(adj.) heavy3.light →(adj.) light1. report →(pt.) reported2. beat →(pt.) beat3. rise →(pt.)rose4. suddenly →(adj.)sudden5. icy →(n.) iceSection B1. realize →(pt.) realized2. completely →(adj.) complete3. recently →(adj.) recent二、短语归纳1.make sure确信;确认2.beat against...拍打……3.fall asleep进人梦乡；睡着4.die down逐渐变弱/消退5.wake up醒来6.in a mess一团糟7.break...apart使……分离8.in times of difficulty在困难的时候9.at the time of当.......时候10.go off(闹钟)发出响声11.take a hot shower洗热水澡12.miss the bus错过公交车13.pick up接电话14.bring...together使……靠拢15.in the area在这个地区16.miss the event错过这个事件17.by the side of the road在路边18.the Animal Helpline动物保护热线19.walk by路过20.make one’s way to …在某人去……的路上21.hear the news听到这个消息22.important events in history历史上的重大事23. for example例如24. be killed被杀害25.over5050多(岁）26.a school pupil一个小学生27.on the radio通过广播28.in silence沉默;无声29. recently最近地;新近30.the World Trade Center世贸中心31.take down拆除;摧毁；记录32.have meaning to对……有意义33.remember doing sth.记得做过某事34.at first首先;最初35. have a look 看一看36. something strange奇怪的事情37. in American history在美国历史上38. strong wind 大风39. heavy rain 大雨三、句型集萃1.be busy doing sth.忙着做某事2.see sb./sth. doing sth.看见某人或某物正在做某事3.begin/start to do sth. 开始做某事4. try to do sth. 努力做某事5. It’s+adj.+to do sth.做某事是……的6. have trouble (in) doing sth.做某事有困难四、重点句子1. My alarm didn’t go off so I got up late. 我的闹钟没有响，因此我起床晚了。
仁爱八年级下册英语unit5知识点
仁爱八年级下册英语unit5知识点本篇文章主要介绍仁爱八年级下册英语unit5的知识点，内容包括语法、词汇、听力等方面，将从以下几个方面进行分析和讲解。
Part 1：语法知识点1. 现在进行时现在进行时表示现在正在进行或发生的动作，常由be动词和动词-ing构成。
例句：I am studying English now.（我现在正在学英语。
）2. 不定式不定式常由to+动词原形构成，可用作主语、表语、宾语等。
例句：To learn English well is my goal.（学好英语是我的目标。
）3. 宾语从句宾语从句是指在主句中作宾语的句子，常由连词that或whether引导。
例句：She said that she would come to the party.（她说她会来参加聚会。
）Part 2：词汇知识点1. 熟词生义“乘坐”可以指“搭乘飞机/火车/车辆”等交通工具，也可以指“登上舞台/上车辆/飞机”等镜头。
2. 词义猜测通过上下文的提示来猜测生词的意思，可以使用前缀、后缀、词根等方法进行推测。
例句：The prefix "un-" means "not".（前缀“un-”表示“不”。
）3. 词汇扩展使用词根、前缀、后缀等方法来扩展词汇量，例如添加前缀re-表示“再次/重新”。
例句：He had to reprint the paper.（他不得不重新印刷这篇文章。
）Part 3：听力知识点1. 听写练习通过听力练习来提高听力水平，可以根据单词、短语、句子等不同的难度进行练习。
2. 多听多说通过多听多说来提高语感和口语能力，可以在听歌、看电影或者跟朋友聊天时进行练习。
总结：本篇文章主要介绍了仁爱八年级下册英语unit5的重点知识点，包括语法、词汇、听力等方面。
在学习中，可以通过多种途径来提高自身的英语能力，以达到更好的学习效果。
Unit5课堂讲义河北省衡水人教版八年级英语下册
Unit5 What were you doing when the rainstorm came？【教学目录】1.掌握本单元重要词汇2.掌握本单元重要短语3.重要语法【教学详解】一、重要词汇详解1.begin（v）开始【拓展】begin to do sth 开始去做某事Begin doing sth 开始做同一件事2.heavily（adv）大量地【拓展】heavy（adj）重的4.suddenly（adv）突然【拓展】sudden（adj）突然的All of sudden 突然5.strange（adj）奇怪的【拓展】stranger（n）陌生人6.storm（n）暴风雨【拓展】stormy（adj）暴风雨的7.wind（n）风【拓展】windy（adj）多风的8.match（n）柴火；比赛【拓展】match（v）匹配match……with 9.asleep（adj）睡的【拓展】sleep（v）睡觉10.f allen（adj）落下的【拓展】fall（v）掉落Fall down 掉下Fall off从……掉下11.i cy（adj）冰冷的【拓展】ice（n）冰12.p letely（adv）彻底地【拓展】plete（adj）彻底的13.s ilence（n）安静【拓展】silent（adj）安静的14.d ate（n）日子【拓展】out of date 过时15.t ruth（n）事实【拓展】true（adj）真的二、重要短语1.go off2.pick up3.fall asleep4.die down5.have a look6.make one's way7.in silence8.take down9.at first10.all of sudden三、重要语法归纳一、过去进行时过去进行时表示在过去某一时刻或某一段时间正在进行的动作。
过去进行时的构成：肯定句：主语+was/were+现在分词……否定句：主语+was/were+not+现在分词……疑问句：Was/Were+主语+现在分词……?疑问代词/疑问副词+was/were+主语+现在分词……?过去进行时的肯定句：句型：主语+ was/were + 现在分词……过去进行时的否定句：句型：主语+ was/were+not +现在分词...过去进行时的否定句是在助动词was/were 后加not，后接现在分词。
Unit5 讲义2022-2023学年人教版英语八年级下册
八下U5讲义知识点一发出响声1.半夜里一辆汽车的警报器响了。
A car alarm ______ ________ in the middle of the night.2.最好闹钟一叫你就起床。
You’d better get up as soon as the alarm clock _______ ________.3.我们进屋时灯灭了。
The light ______ _______ as we entered the room.4.牛奶在热天很容易变坏。
Milk ______ ________ quickly in hot weather.知识点二1.虽然雨下得很大，他们还在努力地工作。
Though it was raining __________, they were still working hard.2.风猛烈地刮着，带起了许多沙子。
The wind is blowing ____________ with lots of sand.3.昨晚下了一场大雨。
There was ______ ________ rain last night.知识点三1.突然，我有了一个好主意。
___________, I have a good idea.2.他的突然离世使大家很悲伤。
His ________ ________ makes everybody sad.知识点四1.电话响了。
请你帮我接一下好吗？The phone is ringing. Could you please _______ _______ ________ for me?2.你的钢笔在地板上,请把它拾起来。
Your pen is lying on the floor; please _______ _______ ________ .3.明天早上六点钟我去接你。
I will_______ _______ ________ at six tomorrow morning.4.告诉你一个窍门，是我从妈妈那里学来的。
仁爱英语8年级下册Unit5Topic1学科讲义(有答案)
Ｕniｔ 5 Tｏpic1I'm so happyU5T1ＳＡ1 How are you doiｎg? =Ｈow are ｙｏu？您们好不？多用于熟人之间的问候。
【即时演练】－--Ｌoｎg tiｍｅｎo ｓee ,Joyｃｅ。
——-Eｖeｒyｔhing iｓOK。
Thaｎks、A.Ｈow are yｏu doing?B.How do ｙoｕｄｏ？C.What are you doｉng?D.What do you ｄｏ?２inviｔｅｓｂ、to do sth。
邀请某人做某事inviｔｅsb。
(tｏｓp、) 邀请某人(到某地)e。
g。
ＬiＭing iｎvited ｍｅto ｈiｓｐaｒｔy yｅsterday ｅvenｉng。
昨晚李明邀请我参加他的聚会。
【即时演练】-——Would you like ｔo invite Mr、Wang ｓportｓwith you ？－——Yeｓ,I'd ｌove ｔｏ。
Ａ。
ｔo ｐｌaｙB、ｔｏlooｋC、ｐｌay ｉng D、ｌoｏｋing3 one ｏf+形容词最高级+可数名词复数……中最……之一e。
g、Toｍiｓｏnｅof the mｏst liveｌy boys ｉn our cｌaｓｓ。
汤姆是我们班最活跃的男生之一。
“one of ＋可数名词复数”作主语时,谓语动词用单数形式。
e。
g、Oｎｅoｆthe bａgs is mｉne、其中一个书包是我的。
【即时演练】Small Apｐle ｉs(最受欢迎的···之一)ｓongs on the Iｎｔerｎet in 2019、４sａy ｔhａnks tｏsb。
向某人表示感谢。
类似的短语还有:say ｈｅllo to sｂ、向某人问好;say gooｄ－byｅｔo sb。
向某人告别;sａy sorry tｏｓb、向某人道歉。
e、g。
He cａme ｈeｒe to saｙgｏod－byｅｔo ｍe。
2021仁爱英语8年级下册Unit 5 Topic2学科讲义(有答案)
Unit 5 Feeling ExcitedTopic 2 I’m feeling better now.1 此句为省略句，完好的句子是：Is there anything wrong?e.g. Is there anything wrong with your head? 你的头有什么缺点吗？2 I’m sorry to hear that. 听到这我感到很难过。
be sorry to do sth. 很抱歉做某事e.g. I’m very sorry to keep you wa iting so long. 很抱歉让你等这么久。
3 badly为副词，修饰动词的副词通常放在被修饰的动词之后。
如：listen carefully, read quickly等。
do badly in 在……方面做得不好，与do well in意思相反。
e.g. Why do you think you did so badly in your text?你认为为什么你考得这么差？He did very well in English when he was young. 他小时候就很擅长英语。
【即时演练】Jack’s parents felt disappointed because he did badly his lessons.A.atB.inC.toD.on4 be strict with 对……要求严格，后面接人作宾语。
e.g. The teacher is strict with us. 老师对我们要求很严格。
be strict about/in sth. 在……方面要求严格e.g. His father is strict with him about/in study.他的父亲在学习方面对他要求很严格。
5 She feels very lonely because she has no friends to talk with.他感到很寂寞，因为没有朋友可以聊天。
2021仁爱英语8年级下册Unit5 Topic3学科讲义(有答案)
Unit 5 Feeling ExcitedTopic 3 Many things can affect our feelings. U5T3SA1 give (sb.) a speech 做报告，做演讲e.g. Our school will invite a scientist to give us a speech about feelings next week. 下周，我们学校将邀请一位科学家给我们做一个关于情感的报告。
2.I am sure you will do well .do well 干得好，成功E.g. He is doing very well at school.他在学校成绩很好。
3.Relax and just follow the dentist’s advice.放轻松，遵照牙医的建议就好。
follow\take one’s advice 遵照某人的建议，按某人的话去做。
We should follow\take our teachers’ advice.我们应该听从教师的建议。
U5T3SB1 ①be confident about...意为“对……有信心〞。
e.g. I’m confident about passing the exam.我有信心通过考试。
We should be confident about ourselves.我们应该对自己有信心。
2 in a bad mood 心情糟糕in a good mood心情愉快in good health 安康状况良好e.g. He is in good health all the time.他身体状况一直很好。
3 What about doing sth.意为“做某事怎么样〞，与How about doing sth.同义。
类似提建议的句型还有：Why don’t you/we do sth.?Why not do sth.？Let’s do sth. We’d better do sth.4 be proud of...以……为骄傲，同义词组为take (a) pride in...e.g. I am proud of our great country.=I take(a) pride in our great country.我为我们伟大的祖国而感到骄傲。
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Unit5 If you go to the party, you’ll have a great time☆重难点专项训练☆1. Mary cares about clothes too much, and she _____ too much money _____ clothes.A. spend; inB. cost; atC. pays; toD. spends; on2. The enemy troop suddenly took the small village by surprise _____ a rainy morning.A. onB. atC. inD. during3. He wanted to read more, so he asked his friend if there was _____ to read.A. something easy enoughB. something enough easyC. enough easy somethingD. easy enough something4. He _____ the club and _____ its activities.A. took part in; joinedB. joined; took part inC. joined; took a part inD. took part in; took part in5. After the accident, she was badly _____.A. woundB. harmC. hurtD. injured6. George spent _____ studying.A. the whole dayB. all during the dayC. altogether a dayD. entirely a day7. You may find _____ hard to get along well with them.A. theyB. themC. itD. /8. If her son _____supper at home this evening, Mrs. wang will be very happy.A. haveB. hasC. will haveD. is going to have9. If Lily doesn’t go to the park tomorrow, Lucy _____,either.A. doesn’t goB. won’t goC. goesD. will go10.--- Please tell me the reason _____ becoming a teacher.--- I think the teachers are very busy and tired.A. forB. toC. againstD. with☆条件状语从句☆1) if条件句:条件句用于陈述语气,表示假设的情况可能发生,其中if 是“如果”的意思。
构成:条件从句主句时态If＋一般现在时: 主语＋shall/will+动词原形2) 用法:①条件状语从句通常由连词if引导,意为―如果、假如‖,主句不能用be going to表示将来,而应该用shall，will。
If you leave now, you are never going to regret it. ( )②if ―如果‖，引导条件状语从句,主句用一般将来时,从句则用一般现在时,另外,主句是祈使句或含有情态动词,从句也用一般现在时。
如：Please call me if he comes next Sunday. Can you call the policeman if you are in the trouble. 注意:宾语从句中的if与条件状语从句if的区别。
宾语从句中的if―是否‖相当于whether，引导宾语从句，时态需根据语境确定。
如果主句用一般现在时，从句可以根据具体情况选用时态，如果主句用一般过去时，从句必须用过去式的某种形式。
I don't know if it will rain tomorrow.我不知道明天是否会下雨。
Our teacher said there was going to be a football match the next month.我们说下月将有场足球比赛。
如果你愿意等一会的话，我去告诉我妈妈你来了。
<试比较下列句子>:If you see him tomorrow,give him this book.If you will see him tomorrow,give him this book.注意:从句中的will不是将来时助动词，而是情态动词。
翻译为“愿意”。
If you will excuse me,I really must go to bed. 如果你能原谅我的话,我真的要睡觉了。
2）unless引导的条件句，表示强烈的否定。
翻译为“除非……”。
“非……不可。
”I shan’t go unless he asks me . 他不来请我我就不去。
You will fail unless you work harder . 你不努力就会失败的。
Don’t come unless I call you .我不叫你就别来.注意:unless 从句里的谓语只能是肯定式，因为本身unless表示否定。
误: Unless you do not work,you will fail.正：Unless you work hard,you will fail.=If you don’t work hard ,you will fail .练习：1．If she ______ (finish ) work early ,she ______(go) home.2．If the weather______（be）fine，we_______(go)for a walk .3. If I_____(have) time tonight ,I _______(finish) the book I’m reading.4. If I ______(rain) next weekend , we_______(not be able to ) plant the vegetable .5. If it_______(rain),we______(stay) at home .6.If she______(arrive) ,she _____(phone) me .7. If he_____(call),tell him I’ll ring back .8. Unless you_____(work) harder ,you_____(not)pass the the exams .9. He _____(not speak ) to you unless you_____(speak) to him first .10.I don’t know if it ______(rain) tomorro w .If it _____(rain) , we _____(not go )to school .☆查漏补缺☆一．单项选择(宾语从句)1 The girls asked if they ____ some food and drink with them.A. tookB. takeC. takesD. will take2 Catherine said that she ___ to Guangzhou.A. has never goneB. had never goneC. has never beenD. had never been3 The students want to know whether they___ dictation(命令) today.A. had B：has . C. will have D. are4 She asked Linda if___ go and get some.A. could sheB. she couldC. she canD. she may5 Linda said the moon___ round the earth.A. travelledB. has travelledC. travellsD. had travelled6. Can you tell me___ you were born, Betty?A. whoB. whatC. whenD. that7 I don't know ___ they have passed the exam.A. whatB. ifC. whenD. where8 I hardly understand___ he has told me.A. thatB. whatC. whichD. who9. She didn't know___ back soon.A. whether he would beB. if would he beC. he will beD. if he will come10.I don't know _____ he still lives here after so many years.A. whether B where C. what D.when11. Do you know _____ they listened to yesterday evening?A. what B when C why D how12.He asked me _____told me the accident.A whomB whichC whoD whose13.Please tell me ______ last year.A.where does your sister workB. where did your sister workC where your sister works D. where your sister worked14.She asked me if I knew ______A. whose pen is itB. whose pen it wasC. whose pen it isD. whose pen was it15. You must remember ________.A.what your mother saidB. what did your mother sayC. your mother said whatD. what has your mother said16. Could you tell me ___?A. when will they leave BeijingB. when would they leave BeijingC. when they will leave BeijingD. when did they leave Beijing17. Could you tell me________?A .where do you live B. who you are waiting for C. who were you waiting for D. where you live in18.I want to know how longA.has he been back B．has he come back C.he has been back D．he has come back19.Do you know ?A．what the news are B．what is the news C．what the news is D．what are the news20.I don't know ________ up so early last Sunday.A. why did he getB.why he getsC.why does he getD. why he got21..He said _________ there was going to be a meeting that evening.A.whatB. ifC.thatD. how二．在正确的答案下划一条线。