Unit 4 A glimpse of the future Using Language 课件

高二英语外研版高中英语新教材选择性必修第三册Unit 4 A glimpse of the futureUsing language Unit 4A glimpse of the futureP3 Using languageSubject-verb agreement1.表示时间、距离、重量、体积、价格等的复数名词作主语,谓语动词用单数。I think $500 is a large sum of money for him.Ten kilometres is a long distance for him to get there on foot.2.分数或百分数作主语,谓语动词根据分数或百分数所指代的名词而定。Two thirds of his income has been spent on books.Forty percent of the population in that country are still in poverty.主谓一致(二)3.“a number of+复数名词”作主语,谓语动词用复数;“the number of+复数名词”作主语,谓语动词用单数。A number of new products have been successfully produced.The number of people doing fitness training is on the increase.4.a large quantity of与large quantities of修饰名词作主语时,谓语动词根据quantity的单复数形式而定。A large quantity of trees has been planted on either side of the road.Large quantities of trees have been planted on either side of the road.5.从句、不定式或动名词作主语时,谓语动词通常用单数。When the meeting will be held has not been decided yet.Reading in the sun does harm to our eyes.6.主语是what引导的从句,谓语动词的形式根据主语从句表示的意义而定。What we want is medical equipment.What we want are experienced doctors.7.定语从句中,关系代词作主语时,谓语动词的形式与先行词保持一致。Mr Smith, who is now downstairs , is asking to see you.The Smiths , who are now downstairs , are asking to see you.8.谓语动词的人称和数常常与最近作主语的词语保持一致.常出现在这类句子中的连词有：or , either...or...,neither...nor...,not only...but also...,not...but...等连接。 Neither the students nor the teacher knows the reason why she behaved strangely.He or we are going to be sent to study abroad .Not only Jim but also his parents are fond of watching football games.9.当主语后跟with, together with , along with, as well as, but , rather than；except, besides, including等连结的词组时,其谓语动词的单复数跟主语保持一致。 My father as well as his workmates has been to Beijing.  Nobody but two students is in the classroom.1. A library with five thousand books _____ offered to the nation as a gift.2. The teacher, along with her students, ___ going to attend the lecture.3. All but one ______ (has) arrived here.4. No one except two students _____ late for class yesterday.isishavewas10. "one of+复数名词+ 定语从句"结构中，定语从句的谓语动词要用复数；"the only one of +复数名词+定语从句"的结构中，定语从句的谓语动词要用单数.He is one of the students who get there on time.He is the only one of the students who gets there on time.11. many a/more than one+单数可数名词作主语,谓语动词用单数。 Many a student has been sent to plant trees.  More than one student has ever been to Beijing.Complete the passage by choosing the singular or plural form. Nowadays, some companies offer genetic testing for children’s talents. A large number of clients / has been attracted to it. They are parents, eager to know what talents their children may have in the future. The process is simple. Every child provide / a small sample of blood or body tissue. / These are analysed. Each of the children / are given a report showing their possible talents. A recent example cited on the website is that one of the testing companies compare / the talents of twins Bobby and Benny. Bobby was assessed and his talents was / revealed to be mostly scientific: a 66% chance of success in chemistry and 54% in physics was / shown. Meanwhile, Benny’s highest score / shown to be in an arts subject: the test gave him 68% for literary studies. Is genetic testing reliable? Some scientists say that more evidence / are needed. have providesThis is iscompareswerewerewasis were1.What they provided him 　　　　　(be)a car. 2.Many a student 　　　　　(be) selected to take part in the English competition , and more than one teacher 　　　　　(have) coached them on speaking and writing. 3.Nobody but three students 　　　　　(be) in the laboratory at that time. waswashaswas4.The teacher, with 6 girls and 8 boys of her class,　　　　　(visit) a museum when the earthquake struck. 5.Two fifths of the land in that district 　　　　　(be) covered with trees and grass. 6.With more forests being destroyed , huge quantities of good earth 　　　　　________________(wash) away each year. 7.He is the only one of the students who　　　　　 (be) a winner of scholarship for three years.  was visiting is are being washed has beenComplete the description according to the charts, paying attention to subject-verb agreement. Three quarters of the surface is made up of land, while the rest is sea, covering 25% of the surface. Three quarters of the surface is made up of land, … Half of the land is covered with trees. Residential area and arable land both account for the same proportion, 20% of the total land. The rest is desert, covering 10% of the total land. There are three kinds of people. Fifty per cent of the people are original residents, 30% are from Earth and 20% are from other planets.be made up of 由…组成 be covered with 被…覆盖cover 占 account for 占而其余的是海，占了25%的表面一半的土地被树覆盖。居住区域和耕地占了相同的比例，总量的20%。其他的地是沙漠，占了总量的10%有三种人。一半是原住民，30%是地球人，20%是从其他星球来的The world of tomorrow Time travel could result in a paradox – an event that contradicts itself. For example, if a person travelled back in time and prevented an event, that event would never have happened; there would therefore be no reason for the person to travel back in time to prevent it.Did You Know?Listen to the conversation and choose its main idea.1 Time travel is dangerous.2 Talking to people in the past can change the future.4 Time travel within your own lifetime should be avoided.3 Anything you say or do in the past can affect the future.RULE 1 1______________________________ • A tourist wants to 2_____________________________________________ because3____________________________________. • The guide told her4________________.RULE 2 5____________________________________• The guide said that 6_____________________________________________ ________________________.RULE7___________________________________________________• A tourist want to8____________________________________________.• The guide told him not to because 9 _________________________________ ______________________________________________.Listen again and complete the table.Don’t talk to anybody. tell her 8-year-old self to buy shares in companies that are profitable todayshe wants to become richnot to do thatBe careful not to break anything. breaking something could also cause a paradox and change your path through lifeNever give anything from our time to someone in the past.give a present to his father anything that doesn’t belong to that time might have an impact on someone and cause a paradoxThank you!