unit21L1语法 if(p3)
高一英语教案：下学期unit21知识点
高一上知识归纳（U21）1. interested adj. 感兴趣的[举例] (1) He looked interested. 他看起来很感兴趣.(2) He is very interested in the study of English. 他对学英语很感兴趣。
(3) He is interested to know her personal history.他对她的经历感兴趣(想知道她的经历)。
[拓展]interesting也是形容词，表示“某人或事令人感兴趣，能引起兴趣，有趣的”. [举例] (1) an interesting game /boy有趣的比赛／男孩(2) This plan is interesting to us. 这个计划令我们感到有趣o(3) I have something interesting to tell you.我有一件有趣的事要告诉你.(4) It is interesting to watch birds.赏鸟非常有趣.2. lean vi. 倾斜；屈身；依靠、倚靠[举例] (1) The tower is leaning slightly. 那座塔轻微倾斜。
(2)He leaned forward (down) to hear what she said.他俯身向前<弯下身子)想听她说什么。
(3) He leaned against the tree. 他倚靠着那棵树。
3. communicate v. 传达、表达(信息)；取得联系[举例] (1) He communicated his intention to me. 他把他的意向告诉了我。
(2)We communicate with each other by letter. 我们用书信彼此联络.[拓展]communicate的名词形式为communication.[举例]Language is a major means of communication. 语言是主要的交际工具。
下学期重庆高一英语21-单元--语言点
10. A smile can help us get through difficult situations and find friends in a world of strangers. 设法做或完成/ 电话接通 get through______________________ 今天我处理了一大批文件. I’ve got through a lot of papers today. ___________________________________ Let’s start, there ________________________________. is a lot of work to get through (有大批工作要做呢) but couldn’t get through I tried several times _________________________. (可就是打不通电话)
她将头靠在他肩上哭泣着. She was weeping, resting her head on his shoulder __________________________________________.
n, 休息 ，剩余部分,其余 rest _______________
咱们在这休息。
Let’s have/ take a rest ___________________________.
mean doing : 意味着 我打算在这儿呆很久. I mean to stay here for a long time _______________________________.
我本打算周日走. I had meant to leave on Sunday. ____________________________. 赶不上火车预示着要再等一个小时. Missing the train means waiting for another hour ___________________________________________.
if-的用法PPT课件
1. Should it (=if it should)be necessary，I will go. 倘若有必要，我会去的。 2. Were I(=if I were) in your place，I would do the same. 如果我处于你的位置，我也会这样干的5
C 虽引导宾语从句，但为了强调宾语部分，也
可把从句放在句首，此时只用whether不用if。 Whether he will come I am not sure. 他是不是来我拿不准。
D 从句作介词宾语时只用whether不用if。
It depends on whether it will be fine.那 得看是不是晴天。
四、if引导时间状语从句，当if做“当”或 “无论何时”解而不含有条件之义时，if从句 中的时态与主句中的时态相同。
1. If you mix yellow and blue，you get green． 你将黄色与蓝色混合，便会得到绿色。 2. If she wants the servant，she rings the bell. 每当她需要仆人时，她便按铃。
A. too many B. many too C. too much D. much too
10. I’ll give the book to him if he _B__ here next Sunday.
E 作discuss等动词的宾语时，用whether不
用if。
开放英语I(2)Unit21
Unit 21 句型3
3、将来时的不同用法：
1）be + doing
This is English 2
Unit 21
Unit 21 句型1
1、短语动词：动词+介词/副词 短语动词常见的宾语位置有：
动词+介词/副词+宾语， 如：bring back the cat 动词+宾语+介词/副词， 如：bring the cat back 如果用代词作宾语，则一般都采用第二种方式： 如：动词+宾语+介词/副词, bring it back 建议： 牢记教材中出现的短语动词，最好用特殊符号划出，以便 更好地复习；
look after sb., P36:
break down,
P39:
check in, check out, get to
UNIT 20 的短文
我们在这三个单元中学习了许多词组以及 一些有关Mary的短文，请大家运用这些知 识与信息来完成教材第35页的Activity 6。
练习：
下面这些练习是综合了前几单元的词组知识来编 写的。
例句： I borrowed a book from her and returned it yesterday. 我向她借了本书，昨天还给她了。 I borrowed a book from her and gave it back yesterday. 我向她借了本书，昨天还给她了。
【公开课课件】北师版英语选修七Unit 21 Grammar
Practice: third Conditional
1.If you had gone to a doctor, you _____ all right now.
A.are B. were C. would have been D. would be
2. It is hard to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melida Lox Library, in my hometown.
• 2.如果我当时在学校用功读书，我现在就有一 个更好的工作了。
• If I had studied harder at school, I would have a better job now.
3.如果我不害怕蜘蛛的话，我就会把它抓起来的。 If I wasn’t afraid of spiders, I would have
picked it up. 4.要是他们一大早就出发的话，再过半个小时就
该到了。 If they had started in the early morning,
they would arrive in half an hour．
5.如果昨晚下雨的话，今天就要凉快些了。 If it had rained last night, it would be cooler
４．If I were you，I wouldn’t have missed ( not miss) the film last night．
５．If you had asked ( ask) him when you saw him last time，you would know (know) what to do now．
高一英语Unit 21 Body language人教版知识精讲
高一英语Unit 21 Body language人教版知识精讲【本讲教育信息】一. 教学内容：Unit 21 Body language二. 教学目标：掌握Unit 21词汇及词性变化三. 教学重难点：掌握课文中的重点句型的结构、用法Unit 21 Body languageunfair a. 不公平的fair a. 公平的，美好的avoid v. 避免avoidance n. 避免contact v. 联系be in contact withbe out of contact withbring sb. into contact withcome into contact withlose contact withmake contact withahead adj./ adv. 提前manage v. 做成，经营，管理manage to dofold v. 折叠unfold v. 打开disrespectful a. 失礼的crazy a. 疯狂的be crazy about/over 为…而狂热，着迷be crazy with 为…而（痛苦）发疯be crazy for 渴望得到like crazy 发疯般地，疯狂地firm a. 稳定有力的，牢固的bow v. 鞠躬bow to sb.get throughHave you got through your homework?I tried my best to get you through the exam.I called you, but I just couldn’t get through.tear downtear down the old buildingtear down the enginetear atincredible a. 难以置信的bend v. 弯曲bend one’s mind to sth.be bent onbend to sth.hold uphold outhold onhold toanger n. 愤怒narrator n. 口述者narrate v. 讲述，陈述detail v./n. 细节go into detail（s）in detaildetail sth.detailed a. 精细的，细致的occur v. 发生An idea occurred to me.It occurred to me that …occurrence n. 发生opposite a./n./prep. 相反的，相对的the opinion opposite to mineBlack and white are opposites.The house opposite ours is Jane’s.focus v. 聚焦，关心focus on sth.focus sth. on sth.specific a. 具体的，专门的Do you have a specific aim?This kind of substitute has specific use.四. 课文重难点：P59 READING…about what a person is thinking by watching his or her body language.about后面是一个宾语从句。
unit21lBody language完美版
• She made sure that she had turned off the gas.确定
• He made sure to warn the driver that the roads were flooded.没有忘记警告司机
高考在线
• 1. –Shall I help you with that suitcase?
•
C. stuck to
D. kept on
风，没有衣裳；时间，没有居所；它们是拥有全世界的两个穷人生活不只眼前的苟且，还有诗和远方的田野。你赤手空拳来到人世间，为了心中的那片海不顾一切。 运动太多和太少，同样的损伤体力；饮食过多与过少，同样的损伤健康；唯有适度可以产生、增进、保持体力和健康。 秋水无痕聆听落叶的情愫红尘往事呢喃起涟
• D. No, thanks. I can’t manage it myself
• 8. I would love_D_ to the party last night
• but I have to work extra hours to
• finish a report.
• A. to go B. having gone
into practice.
3.Would you like me to help with it?
Would like to do sth 想要做某事
• Would you like some tea? • Would you like to have some tea? • I’d like you to come and meet my
B. to stay
• C. is for staying D. is to stay at
U21-L1- Grammar
If you had listened to the teacher, you could work out the maths problem now.
• ３．He hurt his legs in the last training, so he will not take part in the coming running race.
Discovery
１.If Peter was a more skillful player, he would have scored more points.
Form: If+Past Simple, would+have done
As in 2nd conditional
说明
As in 3nd conditional
Байду номын сангаас
According to the Chinese, complete the following sentences .
• 1.如果他遵照医生的劝告，现在病就好了。 • If he had followed the doctor's advice， he would recover already．
过去完成时 第三 条件句
would/could/might+have +过去分词
Target Grammar
Thinking
１.If Peter was a more skillful player, he would have scored more points. 2. Ben Johnson would still be the 100 meters world record holder, if he had not been caught. 3.If he had broken that record, he would be a world-famous runner now.
Unit 21 Human Biology Warm-up, L1, L2 单词拼写
Unit 21 Human Biology Warm-up, L1, L2 单词拼写1. Speak louder — her h isn’t very good.2. It’s raining, so we will p the game until tomorrow.3. I’ll do it s away (= immediately). 这件事我马上就做。
4. The condition prevents the blood from c freely. 这种病阻碍了血液的循环畅通。
5. Those who know to t others can naturally lead a happy life.那些懂得容忍他人的人自然可以生活得幸福。
6. He is unlikely to be a t to the Spanish player in the final. 相信他不会在决赛中对这位西班牙运动员形成威胁。
7. His efforts to raise money for his program were because no one showed any intention to take a cent out of their pockets.A. in placeB. in sightC. in effectD. in vain*8. Hard work is f to success.勤奋工作是成功的基础。
*9. Don't worry about the cost — I'll t you.别担心费用，我来替你付。
*10. Drivers are advised to s alternative routes.驾车者被告知需另寻其他路线*11. There will be an i of 20 minutes after the second act.第二幕结束后将休息20分钟。
大学英语教案 Unit21
Unit One Section ATime-Conscious AmericansI.Background information1.Time OrientationAmericans place considerable value on punctuality. Because they tend to organize their activities by means of schedules, they may seem harried, always running from one thing to the next and unable to relax and enjoy themselves. Since Americans are so time conscious, the pace of life may seem very hectic(紧张的). Being on time is regarded as very important, and in the U.S. most people make an effort to arrive on time. Not all Americans are punctual, but almost everyone is conscious of time. Different types of activities have different conventions. One should arrive at the exact time specified for meals, and for appointments with professors, doctors, and other professionals. You can arrive any time between the hours specified for parties, receptions, and cocktail parties. Plan to arrive a few minutes before the specified time for public meetings, plays, concerts, movies, sports events, classes, church services, and weddings. If you are unable to keep an appointment, it is expected that you inform the other party that you will be late or unable to arrive.2. HourglassA glass container holding fine sand for measuring time, which is narrow in the middle like a figure 8 so that the sand inside can run slowly from the top half to the bottom taking exactly one hour.沙漏：一种装上细沙以用来测量时间的玻璃容器，其颈部细小，形状象一个8字，使得上半部的沙子能缓慢地流到下半部中，其时间正好是一个小时。
高一英语Unit21Ving动词的用法课件.ppt
Having been told many times, he still didn't understand.
逻辑主语 one’s doing
Do you mind my smoking here? Excuse me for my being late.
I leave the machine running all day. 我让机器整天运转着。
6. 状语，表时间、原因、结果、方式、 伴随 、让步、条件。
Being ill, she went home. (原因） = Because she was ill, she went home.
4. 作定语 a. the laughing audience / an amusing story
Dustin Hoffman is famous for his role acting as a woman. ( 短语后置） The girl singing on the stage is my sister.
being caught
speaking
taken
11 ) Though_______ (lack) money, his parents managed______ (send) him to university. 12) -- How do you deal with the disagreement between the company and the customers? -- The key________ (solve) the problem is _______(meet) the demand ________(make) by the customers. 13) With a lot of difficult problems__________ (settle), the newly-elected president is having a hard time. 14) _____ (suffer) such heavy pollution already, it may now be too late___ (clear) up the river. 15) Do let your mother____(know) all the truth. She appears__________ (tell) everything.
unit21知识点梳理2(less0n3+cw+la)
Senior 2 M7 Unit21 Human Biology (L3+CW+LA)P.381.完全毁坏 3.试试去做某事2.有记录的 4.对做试验5.阻挡此后迸发6.现代交通技术和医疗研究技术使得世界范围内的健康专家团联合作、分享知识、不间歇地工作来击败SARS。
7.多达五千万人8.偏向于侵袭青壮年而不是老年人9.被以为是历史上最为严重的传得病12.在14世纪 30年月10.死于流感13.缺少基本点健康习惯11.成为关注的焦点14.在世界范围内流传P.3915.把和相提并论16.纵观历史19.死于黑死病17.发现传得病的因果关系20.使很多家庭蒙受丧亲之痛18.在都市地域21.把病毒传给其余人22.多半人不具备这类病的自然抗体。
23.对医生有害24.重申事实25.完全系统的医学研究26.需要赶快地找到治疗方法27.我们应当相信人们会实时找到解决方案来完全消灭禽流感。
P.39 Ex.728.系统地学习29.遗遗漏P.4030.博得合法的战斗31.法庭支持摘除生命呼吸机。
32.堕入昏倒状态34.在不严重的事例里33.夺走35.在全部的状况下P.4336.在 1996 年夏季37.进行化疗 _________ chemotherapy ____________38.Armstrong 信心不让疾病战胜他。
39.在世界列第七位40.就要在他身上发生41.被诊疗患有癌症42.无望地把头放在医生的桌子上43. 我们开始吧。
.44. 减肥45.金钱和成功仿佛其实不可以使他感兴趣。
46.给某人提建议Senior 2 M7 Unit21 Human Biology (L3+CW+LA)P.381. 完全毁坏 wipe out2. 有记录的 on record3. 试试去做某事attempt to do4. 对做试验 do trials on5. 阻挡此后迸发prohibit any future outbreaks6.现代交通技术和医疗研究技术使得世界范围内的健康专家团联合作、分享知识、不间歇地工作来击败 SARS. 。
2025届高考英语语法 if条件句课件(共21张PPT)
If I met a Martian, I wouldn’t understand him.
?
IfI aved
If I didn’t understand him, I would come back to the Earth.
If clause
If + Past Perfect tense
Main clause
ZERO FIRST SECOND THIRD
If clause If + Present simple
Main clause Present simple
If I am late for school, my teacher gets angry.
If I oversleep …
I miss the bus.
If I were an astronaut, I would travel in a spaceship.
If I travelled in a spaceship, I would go to Mars.
If I went to Mars, I would meet a Martian.
Nice to meet you!
IIf you had passed your exam, you could have gone to the beach.
IIf I had gone to the beach, I would have made sand castles.
would/could/might + have + past participle
If I had studied hard, I would have passed my exams.
高一英语Unit 21 Body language人教版知识精讲
高一英语Unit 21 Body language人教版【同步教育信息】一. 本周教学内容：Unit 21 Body language二. 教材语句补充：1. I can’t keep my eyes open .我睁不开眼。
▲ keep此处为使役动词。
用作使役动词的keep，构成keep+宾语+宾补的结构，在此结构中，能作宾补的词有形容词、副词、名词、分词等。
如：（1）This coat will keep you warm . 这件外套可以让你暖和。
（2）His illness kept him in bed for a week . 他因生病而在床上躺了一星期。
（3）The window was kept locked . 那窗户一直锁着。
（4）They kept their marriage a secret . 他们已经结婚了，却秘而不宣。
（5）She kept me waiting for half an hour . 她让我等了半个钟头。
2. Match each picture with the correct emotion and the correct sentence .把每一幅画和正确的表情及句子搭配起来。
▲ match此处为及物动词，意为“使……（和……）调和，相配”，构成match + n. + to / with + n.“把……和……搭配起来/调和起来”。
还意为：（1）vt.（在……）与……匹敌，成为……的好对手，势均力敌。
结构为：match + n. + in / for + n.。
如：① No one can match her in knowledge of classical music .在古典音乐知识方面没人能和她匹敌。
（2）vt. 使……（和……）交手；使……比赛。
结构为：match + n. + against / with + n.。
如：② The two ex-champions were matched in the final . 那两位前冠军保持者在决赛中交手。
高二英语 Module21 Lesson 1 虚拟语气用法复习学案 北师大版模块七
Unit 21 Human Biology Lesson 1 Super AthletesGrammar---- “虚拟语气”Tips：When you＇re good to others, you are best to yourself.善待他人，即是最善待自己。
Learning objective: How to use “虚拟语气Key &Difficult Learning Point: How to use “虚拟语气”correctlyLearning ProceduresStep 1虚拟语气的基本用法虚拟语气是谓语动词的一种形式，用来表示非真实的假设，或者用来表示命令、建议或说话人的主观愿望。
一、非真实条件中的虚拟语气非真实条件就是违背事实情况的假设，包括违背现在事实的假设，违背过去事实的假设，以及违背将来的假设。
在这三种情况下，条件从句和主句中的谓语动词采取下列虚拟形式。
1．违背现在事实的假设：从句谓语动词用一般过去时（were/did），主句谓语动词用would/could /should /might+动词原形If the earth had no gravity，the moon would fly to the sun．假如地球没有引力，月球就要向太阳飞去。
If were a fish, I could swim in the river freely.假如我是鱼的话，我就可以在河中自由地游泳了。
If I were you ，I would reconsider their proposal．我要是你，就重新考虑他们的建议。
2．违背过去事实的假设：从句谓语动词用过去完成时（had+ been/done），主句谓语动词用would/could /should /might + have+动词过去分词If I had left a little earlier, I would have caught the train．我要是早点动身，就赶上火车了。
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According to the Chinese, complete the following sentences .
• 1.如果他遵照医生的劝告，现在病就好了。 • If he had followed the doctor's advice， he would recover already．
• 4. If he had seen you yesterday, he would have asked you about it.
the Third Conditional Unreal situations in the past
the Conditionals
Zero
First
Second
As in 3nd conditional
As in 2nd conditional
注意：在这种条件句中，虚拟条件主句和从句的动作发 生的时间不一致，因此，主句和从句的谓语动词要根据 各自所指的不同时间选择适当的动词形式。
Practice
hadn’t worked all night , If I_______________ wouldn’t feel I _____________tired now. 过去
• Rewrite the sentences, using the mixed Conditionals. • １．You didn’t have any breakfast, so you are hungry now.
If you had had breakfast, you wouldn’t be hungry now. • ２．You didn’t listen to the teacher, so you can’t work out the maths problem now.
• 2.如果我当时在学校用功读书，我现在就有一 个更好的工作了。 • If I had studied harder at school, I would have a better job now.
3.如果我不害怕蜘蛛的话，我就会把它抓起来的。 If I wasn’t afraid of spiders, I would have picked it up. 4.要是他们一大早就出发的话，再过半个小时就 该到了。 If they had started in the early morning, they would arrive in half an hour． 5.如果昨晚下雨的话，今天就要凉快些了。 If it had rained last night, it would be cooler today.
the • First Conditional
• 3. If my brother were here, everything would be all right.
the Second Conditional
Impossible in the present
Or unlikely in the future
Translate the following into Chinese and read it. Today we buried our 20-year-old son. He was killed instantly in a motorcycle accident on Friday night. How I wish I had known when I talked to him last that it would be the last time. If I had only known I would have said, "Jim, I love you and I'm so very proud of you." I would have taken the time to count the many blessings he brought to the lives of the many who loved him. I would have taken time to appreciate his beautiful smile, the sound of his laughter, his genuine love of people.
Thinking
１.If Peter was a more skillful player, he would have scored more points. 2. Ben Johnson would still be the 100 meters world record holder, if he had not been caught. 3.If he had broken that record, he would be a world-famous runner now.
If he hadn’t hurt his legs, he would take part in the coming running race. • ４．I wasn’t confident then, so I don’t become a teacher now. If I had been more confident then, I would become a teacher now. • ５．He likes driving, so he became a taxi driver. If he didn’t like driving, he wouldn’t have became a taxi driver.
一般现在时 第一 条件句 一般过去时 第二 条件句 过去完成时 第三 条件句
Target Gra 动词过去式 should + 动词原形 could （be用were） might 与过去事实相 would had + should 反 过去分词 could + have + 过去分词 might 动词过去式 would 与将来事实相 或 should + should 动词原形 反 + 动词原形 could 或 were to +动词原形 might 与现在事实相 反
intended 5) If Tom __________(intend) to start out this should /would have got morning( 现在 ), he _____________________(get) everything ready last night( 过去).
Revision
• 1.If I don’t eat breakfast, I always get hungry during class.
the Zero Conditional
Something always true • 2.If the rain stops，the match will begin. Possible in the future
Module 7
Unit21HumanBiology
Lesson One Grammar
新蔡二高高二英语备课组
Objectives
In this class, we will be able to
1. revise Conditionals 2. learn and experience Mixed Conditionals 3. use Mixed Conditionals to express the Ss’ regret correctly.
Third
真实条件句
the Zero Conditional
the First Conditional
非真实条件句
the Second Conditional
the Third Conditional
Zero
First
Second
Third
描述一件 事总是紧 跟另一件 事发生的 规律和情 景
用来谈论 将来发生 的事情； 或用来提 出建议、 要求，或 命令
had been 3) If the weather __________(be) more favorable ( 过去 ), the crops would be growing still better( 现在 ).
had set 4) If he __________(set) off last night ( 过去 ), he would arrive ___________(arrive) there in an hour ( 将来 ).
混合条件句
主句与从句的动作发生在不同的时间，这 时主、从 句谓语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。
had rained 1) If it ___________(rain) last night (过去 ), it would be very cold today ( 现在 ). listened 2) If you had ___________(listen) to me ( 过去 ), you wouldn't be in such trouble now ( 现在 ). 如果你听了我的话，你现在也不会有这样的麻烦了。
As in 3nd conditional
说明
As in 2nd conditional
想象的，有可能导致现在结果的过去情景
Discovery
3.If he had broken that record, he would be a world-famous runner now. Form: If+Past Perfect, would+infinitive
Discovery
１.If Peter was a more skillful player, he would have scored more points.