在错综时间条件句中，虚拟条件句和主句的动作所发生的时间不一致，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用适当的虚拟语气形式。
If I were you, I wouldn't have missed the concert last night. 如果我是你，我就不会错过昨天晚上那场音乐会。
If you had taken my advice then, you wouldn't be in trouble now. 如果当时你采纳我的意见，你现在就不会有麻烦了。
翻译句子
①如果昨晚下雪的话，今天可能会很冷。
If_it_had_snowed_last_night,_it_might_be_very_cold_today. ②If she were leaving, I would have heard about it. 如果她当时要走，我早就会听说了。
4．含蓄条件句
有时为了表达的需要，在虚拟语气中，不出现条件句，而是以介词短语、并列句、副词或非谓语动词的形式出现。这种句子我们称其为“含蓄条件句”。
常见介词短语有without ...“没有??”；but for ...“要不是??”；常用连词有but “但是”；常用副词有otherwise“否则的话”等。
The ship would have sunk with all on board but for the efforts of the captain. 要不是因为船长的努力，我们就会连船带人都沉没了。
He would have given you more help, but he was so busy at that time. 他本可以给你更多的帮助，但那时他太忙了。 5－1.介、连词填空
①Without electricity, the world would be dark.
②I might have given you more help, but I was too busy. 5－2.句型转换
①If it hadn't been for your advice, I wouldn't have made such great progress. →Butfor your advice, I wouldn't have made such great progress.
②Spend time with happy people.If you don't spend time with happy people, your health could suffer.
→Spend time with happy people, otherwise your health could suffer.
[应用实战]
一、链接高考 单句语法填空 1．(2015·江苏高考) It might have saved me some trouble had I known (know) the schedule. 2．(2015·重庆高考)Without his wartime experiences, Hemingway wouldn't_have_written (not write) his famous novel AFarewelltoArms.
3．(2015·安徽高考)It is lucky we booked a room, or we would_have (have) nowhere to stay now.
4．(2015·天津高考)I wish I had_been (be) at my sister's wedding last Tuesday, but I was on a business trip in New York then.
5．(2014·北京高考) We would_be (be) back in the hotel now if you didn't lose the map. 6．(北京高考)If we had_booked (book) a table earlier, we wouldn't be standing here in a queue.
7．(天津高考)If he had spent more time practising speaking English before, he would_be (be) able to speak it much better now.
8．(重庆高考)—It rained cats and dogs this morning.I'm glad we took an umbrella. —Yeah, we would have got wet all over if we hadn't (not)．
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9．(安徽高考)I would_have_gone (go) to my cousin's birthday party last night, but I was not available.
10．(福建高考)We lost our way in that small village, otherwise we would_have_visited (visit) more places of interest yesterday.
11．(湖南高考)Sorry, I am too busy now, if I had (have) time, I would certainly go for an outing with you.
12．(浙江高考)Had they known what was coming next, they might_have_had (have) second thoughts.
二、针对演练 单句语法填空
1．This printer is of good quality.If it should_break (break) down within the first year, we would repair it at our expense.
2．Were (be) he you, he couldn't_make (make) so serious a mistake.
3．If he hadn't_hurt (hurt) his legs in the last training, he would_join (join) in the coming World Cup, which he has been longing to compete in.
4．had I persuaded (persuade) him not to do so, he wouldn't have made such a serious mistake.
5．But for the help of my English teacher, I would_not_have_won (win) the first prize in the English Writing Competition.
6．Sir, if I had_followed (follow) your advice to practice more, I wouldn't_feel (feel) so sorry now.
7．They must have enjoyed themselves there, otherwise they wouldn't_have_stayed (not stay) so long.
8．If you should_fly (fly) to the moon next Friday, we would follow you there. 9．— How I wish I had studied harder when I was in senior school! — If you had, you would_be (be) a university student now.
10．Thank you for giving me a hand. I would_have_failed (fail) in the experiment without your valuable help.
[对应学生课下能力提升(二)]
Ⅰ.单词拼写
1．We eventually arrived at our destination (目的地)．
2．We had an arrangement (安排) to meet each other this morning, but she didn't turn up at all.
3．We should do something for the Project (工程) Hope.
4．The scientific (科学的) method will help you remember more words within less time. 5．You'll have the opportunity (机会) to ask any questions at the end.
6．The teachers put forward some good suggestions on the development of the school. 7．Do you fancy playing basketball with us this weekend? 8．For a millionaire,_the cost of a luxury car is a drop in the bucket. 9．This historical document records the lives of some officials in the Han Dynasty. 10．They have packed their bags and are ready to start out immediately. Ⅱ.选词填空 错误!
1．It has been five years since I got_in_touch_with him. 2．What should I do_with this old computer?
3．It's said that the mayor will come to our city in_the_flesh. 4．It is_up_to you to decide where we will go for a holiday. 5．You must pay_attention_to your handwriting in order to let others see it clearly. 6．It depends_on whether you've got enough time.
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7．It is reported that the soccer player will take_part_in the 2018 World Cup. 8．Hang_on,_please, I'll just see if he is here. Ⅲ.单句语法填空
1．If Bill had_told (tell) me yesterday, I should know what to do now.
2．But for their help, we could_not_have_finished (not finish) the program on time. 3．Jane could_be (be) prettier, but she doesn't care much about her clothes. 4．If you agree, we will_carry (carry) out the plan next week. 5．If my brother were (be) here, everything would be better.
6．He would_have_given (give) you more help, but he was so busy at that time. 7．Please tell her the news when she comes (come)．
8．If he had been free last week, he would__have_taken (take) part in the activity. Ⅳ.句型转换
1．What about the opening ceremony of the 2016 RioOlympic Games? →Howabout the opening ceremony of the 2016 Rio Olympic Games?
→Howdoyoufind/like the opening ceremony of the 2016 Rio Olympic Games? →Whatdoyouthinkof the opening ceremony of the 2016 Rio Olympic Games? 2．Books can not only enrich my knowledge, but also make me calm.(改为倒装句) →Notonlycanbooksenrich my knowledge, but also make me calm. Ⅴ.课文缩写语法填空
Tom and Cathy are talking about their plans for this weekend.Cathy will be busy this weekend 1.because she must finish her project on 2.the history of the Internet for next Monday's lesson.And Tom will probably go camping, but it 3.depends (depend) on the weather.If it rains, he will stay at home and help Cathy 4.with her project.Cathy is very thankful to his offer. And she hopes he can give her some 5.suggestions (suggest) about books on the project, and then she will look for them in the library.Tom suggests she 6.use (use) the library computer to look for the information.He will send her the website address when he 7.gets (get) home.Cathy imagines that they would not only be able to travel around the world, but also go to study in any world famous universities 8.where they wanted to go if they had virtual reality holidays.Although Tom doesn't understand 9.completely (complete), he thinks it could be really 10.exciting (excite)．
Ⅵ.阅读理解
David Braben is a very well-known game developer who runs the UK development studio,
Frontier Developments, but is just as well-known for being the developer of “Elite”．
Over his career his studio has brought us the “Rollercoaster Tycoon” series and most recently “Kinectimals”. In the background, however, Braben has been trying to solve another problem: getting programming and general learning of how computers work back into schools.
Braben says that education since we entered the 2 000s has turned towards teaching useful skills such as writing on computer, how to get information, and learning basic computer use skills. And those have supplanted more computer science-like skills such as basic programming
and understanding the hardware (硬件) contained in a computer.
His solution is not to create his own course, but instead to make a low-cost PC that can be
given to kids for free and his courses are built up around their use.A personal computer is important for each student to have in class.When we say “low cost”， we mean the cost is so low that even “One Laptop per Child” would be realized.Braben has developed a tiny PC.How much is the cost？$25.This is the answer to anyone that says he/she can't afford a computer.The hardware being offered is good, too.The new tiny PC will let the user look through the Internet and give the user a fully functional (功能) computer to play with.And it can be carried in your pocket or on a key chain.
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This tiny cheap PC is going to be given to schools through a new charitable foundation (慈善机构) called the Raspberry Pi Foundation.It will help computer science studies in schools.Braben says he hopes that they will be given within the next 12 months.
1．What David Braben has been trying to do is ________. A．running the UK development studio B．letting children learn science-like skills
C．creating more advanced computers D．creating more computer games 解析：细节理解题。根据第二段的“Braben has been trying to solve another problem: getting programming and general learning of how computers work back into schools.”可以推断出答案。
答案：B
2．What does the underlined word “supplanted” in Paragraph 3 probably mean? A．Used. B．Changed. C．Designed. D．Replaced.
解析：词义猜测题。根据语境可知此处指电脑应用技术已取代了computer science-like
skills。
答案：D
3．What do we know about the PC David Braben is developing? A．It is small and very cheap. B．Its hardware isn't very good. C．It isn't a fully functional one. D．It is cheap and not special.
解析：细节理解题。根据最后一段的“This tiny, cheap PC”可知David Braben研制的计算机又小又便宜。
答案：A
4．What kind of person do you think David Braben is? A．He is mean, rich and famous. B．He is able, wise and mean.
C．He is rich, selfish and successful. D．He is able, famous and warm-hearted.
解析：推理判断题。通读全文后知道Braben是有名的电子游戏的开发者，开发了许多产品。他研制了小的计算机，而且免费地送给孩子们，可知他是有才华的、著名并且充满爱心的。
答案：D
Ⅶ.任务型阅读
Laptop computers give us easy access to our emails, the Internet, or anything else you would use a computer for. 1.________ Here are some suggestions on how to select a laptop or a notebook computer：
2．________
You are looking for a laptop that suits your needs well, so if you are frequently traveling or are going to be transporting your laptop to different locations frequently, you must want to get a laptop that is light and not one that is big and bulky.
Consider what kind of computer software programs you will be using on your laptop or notebook computer.
This will help you determine what kind of operating system would be best for you. Options include getting the Windows operating system on your laptop or getting a Mac notebook.
3．________
If you are performing more simple applications such as surfing the Internet and creating Word documents, you don't need a computer with the most processing power. These lower processing power computers are often referred to as netbooks.
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