大大语法小班0506上课verb

1、Verb Tense Verb MoodVerb Voice 时态、语气、语态 时态：动作发生的时间 语气：动作发生的概率 / 该动作是否已经发生 虚拟语气 / 陈述语气 语态：动作的发出者 主动语态 / 被动语态作者的态度Verb Tense时态 有明确时间标志词 需通过句意分析（无明确时间标志词）明确时间标志词now 现在时last year / in the past / previously / .ago / in + 时间 一般过去时 for + 时间 / since / within the past serval years 现在完成时by + 时间 过去完成时E.g. By 1

2、994, I had lived in Guangzhou for almost three years. 2018一般现在1994一般过去By 1994过去的过去1. According to a recent study of consumer spending on prescription medications, increases in the sales of the 50 drugs that were advertised most heavily accounts for almost half of the $20.8 billion increase in drug s

3、pending last year, the remainder of which came from sales of the 9,850 prescription medicines that companies did not advertise or advertised very little.(A) heavily accounts for almost half of the $20.8 billion increase in drug spending last year, the remainder of which came(B) heavily were what acc

4、ounted for almost half of the $20.8 billion increase in drug spending last year; the remainder of the increase coming(C) heavily accounted for almost half of the $20.8 billion increase in drug spending last year, the remainder of the increase coming(D) heavily, accounting for almost half of the $20.

5、8 billion increase in drug spending last year, while the remainder of the increase came(E) heavily, which accounted for almost half of the $20.8 billion increase in drug spending last year, with the remainder of it comingOG18#7212. Over the past few years, banks have systematically raised their old

6、fees and invented new ones that are harder and harder for consumers to avoid.(A) banks have systematically raised their old fees and invented new ones that are harder and harder for consumers to avoid(B) banks are systematically raising their old fees and inventing new ones that e harder and harder

7、for consumers to avoid(C) banks systematically raising old fees and inventing new ones make them harder and harder for consumers to avoid(D) as banks systematically raised their old fees and invented new ones, avoiding them es harder and harder for consumers(E) as banks have systematically raised th

8、eir old fees and invented new ones, it is ing harder and harder for consumers to avoid themPREP2012#313. A March 2000 Census Bureau survey showed that Mexico accounted for more than a quarter of all foreign-born residents of the United States, the largest share for any country to contribute since 18

9、90, when about 30 percent of the countrys foreign-born population was from Germany.(A) the largest share for any country to contribute(B) the largest share that any country has contributed(C) which makes it the largest share for any country to contribute(D) having the largest share to be contributed

10、 by any country(E) having the largest share to have been contributed by any countryOG18 VERBAL分册#2014. By 1999, astronomers had discovered 17 nearby stars that are orbited by planets about the size of Jupiter.(A) had discovered 17 nearby stars that are orbited by planets(B) had discovered 17 nearby

11、stars with planets orbiting them that were(C) had discovered that there were 17 nearby stars that were orbited by planets(D) have discovered 17 nearby stars with planets orbiting them that are(E) have discovered that 17 nearby stars are orbited by planetsOG18#8045. Because an oversupply of computer

12、chips has sent prices plunging,the manufacturer has announced that it will cut production by closing its factories for two days a month.(A) Because an oversupply of computer chips has sent prices plunging,(B) Because of plunging prices for computer chips, which is due to an oversupply,(C) Because co

13、mputer chip prices have been sent plunging, which resulted from an oversupply,(D) Due to plunging computer chip prices from an oversupply,(E) Due to an oversupply, with the result that computer chip prices have been sent plunging,OG17#727时态一致如何突出动作发生的先后顺序？无明确时间标志词通过句意分析事件发生所处时间段 选取相对应的时态 使用一般时描述gene

14、ral truth / fact. Cherenkov radiation is light that particles are emitting when they are travelling faster than the effective speed of light in any medium. （） Cherenkov radiation is light that particles emit when they travel faster than the effective speed of light in any medium.（） 现在完成时（continued e

15、ffect / continued action） 和一般过去时的区别？ 过去完成时“一般过去时”作为参照系I studied the characteristics of Cretaceous Period in which dinosaurs had already been extinct. （）I studied the characteristics of Cretaceous Period in which dinosaurs was extinct. （）过去的过去一般过去现在一般过去6. Carnivorous mammals can endure what would oth

16、erwise be lethal levels of body heat because they have a heat-exchange network which keptthe brain from getting too hot.(A) which kept(B) that keeps(C) which has kept(D) that has been keeping(E) having keptOG16#157. Although a surge in retail sales have raised hopes that there is a recovery finally

17、under way, many economists say that without a large amount of spending the recovery might not last.(A) have raised hopes that there is a recovery finally(B) raised hopes for there being a recovery finally(C) had raised hopes for a recovery finally being(D) has raised hopes that a recovery is finally

18、(E) raised hopes for a recovery finallyOG16#15和一般过去时的区别如何辨析下列三个句子？Right: The child drew a square in the sand, but the ocean erased it.Right: The child drew a square in the sand, but the ocean has erased it.Wrong: The child has drawn a square in the sand, but the ocean has erased it.沙滩上现在还有square么？No

19、 idea.沙滩上现在还有square么？没有。8. His studies of ice-polished rocks in his Alpine homeland, far outside the range of present-day glaciers, led Louis Agassiz in 1837 to propose the concept of an agein which great ice sheets had existed in now currently temperate areas.(A) in which great ice sheets had exist

20、ed in now currently temperate areas(B) in which great ice sheets existed in what are now temperate areas(C) when great ice sheets existed where there were areas now temperate(D) when great ice sheets had existed in current temperate areas(E) when great ice sheets existed in areas now that are temper

21、ateOG16#89 本题使用一般过去时（而不是过去完成时）的原因？9. A 1972 agreement between Canada and the United Statesreduced the amount of phosphates that municipalities had been allowed to dumpinto the Great Lakes.(A) reduced the amount of phosphates that municipalities had been allowed to dump(B) reduced the phosphate amount that municipalities had been dumping(C) reduces the phosphate amount municipalities have been allowed to dump(D) reduced the amount of p