SAT备考文法知识:动词时态一致

动词时态一致

1. 含义:

前后句的时态要保持一致。

例如:People are queuing for the test right now so the organizer is asking everyone to wear masks.

2. 用法:

  • (1) 现在时

(1) 现在时

a) 一般现在时

i. 定义:经常性或习惯性的动作;普遍真理或一般规律。

ii. 动词形式:do/ does/ am/ is/ are

iii. 例句:

1. We often play football there.

2. I am a slow walker, but I never walk backwards.

3. The sun rises and the sun sets.

b) 现在进行时

i. 定义:此时此刻或目前一个阶段正在进行的动作;计划想要进行的动作。

ii. 动词形式:am/is/are doing

iii. 例句:

1. I am doing all I can to add value to the life of everyone I touch.

2. We are leaving on Friday?

3. He is always thinking of helping others.

c) 现在完成时

i. 定义:过去发生或已经完成的动作对现在造成的影响或结果,或从过去持续到现在的动作或状态.

ii. 标志词:already,by far,till now,since…,in/over/during/for the past/last...days/weeks/years…

iii. 动词形式:have/has done

iv. 例句:

  1.  Qingdao has changed a lot in the last several years.

d) 一般将来时

i. 定义:将来发生的动作或状态;打算、计划或准备做某事。

ii. 例句:

1. It will rain tomorrow.

2. I am going to challenge myself.

真题检测

真题检测 1

(2022-03AS-Q5) In other words, the scientists wondered whether dogs have expectations of what they search for or whether they simply have followed a trail of positive stimuli.

A. NO CHANGE

B. follow

C. will have followed

D. followed

解析:通过前半句whether dogs have expectations看出have是一般现在时,根据前后句的时态要保持一致的原则,后面的句子也要是一般现在时,所以排除A/C/D三个选项,所以选B。

注:2022-03AS-Q5为2022年3月亚太真题第5题。

真题检测 2

(2022-03AS-Q22) The results of the study certainly support Suveyke’s assertions that the career of a merchandise buyer is one that mixed creativity with business acumen all in a day’s work.

A. NO CHANGE

B. was mixing

C. mixes

D. had mixed

解析:通过the career of a merchandise buyer is one看出is是一般现在时,根据前后句的时态要保持一致的原则,后面的句子也要是一般现在时,所以排除A/B/D三个选项,所以选C。

注:2022-03AS-Q22为2022年3月亚太真题第22题。

真题检测 3

(2022-03AS-Q25) Proponents of the double-degenerate mode hypothesizes that in some cases the companion white dwarf survives and is propelled away with a velocity equal to its orbital velocity prior to the explosion.

A. NO CHANGE

B. has hypothesized

C. hypothesize

D. is hypothesizing

解析:通过and is propelled away with a velocity看出is是一般现在时,根据前后句的时态要保持一致的原则,前面的句子也要是一般现在时,所以排除A/B/D三个选项,所以选C。

注:2022-03AS-Q25为2022年3月亚太真题第25题。

真题检测 4

(2022-03AS-Q40) For each of those years, from 2014 to 2114, a noted author is to be asked to contribute an original piece of writing: each work is to be held securely.

A. NO CHANGE

B. are being

C. were

D. have been

解析:通过each work is to be held securely看出is to be是表示计划,根据前后句的时态要保持一致的原则,前面的句子也要是表示计划,所以排除B/C/D三个选项,所以选A。

注:2022-03AS-Q40为2022年3月亚太真题第40题。

作者:刘龙

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