prevent的第三人称单数

prevent做动词有预防;防止，阻止;挡住等意思，那么你知道prevent的第三人称单数是什么吗?下面小编为大家带来prevent的第三人称单数和用法例句，欢迎大家参考学习!

prevent的第三人称单数：

prevents

prevent的用法：

prevent的用法1：prevent的基本意思是“止”,可表示“阻止”(某计划或意图)、“防止”(已有兆头的险事、恶事)、“制止”(某人做某事)等,强调做好预先的防备或准备,含有“阻止成功”的意味。

prevent的用法2：prevent主要用作及物动词,可接名词、代词或动名词作宾语,不接不定式作宾语。用作prevent宾语的动名词前常有物主代词或者名词,人称代词宾格表示其逻辑主体。prevent可用于被动结构。prevent偶尔也可用作不及物动词。

prevent的用法3：表示“阻止做某事”,可用prevent sb/sb's v -ing,也可用prevent sb from v -ing,这几种用法在意义上没有明显的区别。

prevent第三人称单数例句：

1. The condition prevents the blood from circulating freely.

这种病阻碍了血液的循环畅通。

2. She has a theory that drinking milk prevents colds.

她有一种说法,认为喝牛奶能防止感冒.

3. His disability prevents him from holding a job.

他的伤残妨碍他就业.

4. We shall come tomorrow if nothing prevents.

如果没有什么阻碍的话,我们明天会来.

5. Rheumatism prevents him form bending his back.

风湿病使他不能弯腰.

6. The Supreme Court today struck down a law that prevents criminals from profiting from books or movies about their crimes.

最高法院今天废止了一项关于禁止罪犯把其罪行写成书或拍成电影而从中牟利的法律。

7. The camera has a built-in failsafe device which prevents it from working if the right signals aren't received.

照相机有内置自动防故障装置，该装置确保相机在未接到正确信号时不会启动。

8. Scientists are still studying how the compound prevents pathogens from infecting cells.

科学家仍在研究这种化合物如何阻止病原菌侵染细胞.

9. The very fact of poverty prevents that activity from flourishing.

正是因为贫困的事实使这些活动无法兴旺起来.

10. My inferior understanding prevents my grasping the unquestionable soundness of the mission.

我理解力差,无法理解这次任务的绝对正确性.

11. Prevents egress of the latter through the unsealed portion.

阻止后者通过未接合部分出来.

12. Charcoal prevents browning of tissues and stimulates embryogenesis and rooting.

炭可防止组织变棕色并刺激胚胎发生与生根.

13. Signal which prevents accidental operation by spurious signals or avoids possible ambiguity.

防止假信号的意外作用或者避免二义性而设置的信号.

14. The crust seals the soil and prevents the evaporation of water.

这层表皮把土壤封闭,防止水份蒸发.

15. The scintillation of the earth's atmosphere prevents this limit from being attained.

地球大气的扰动使这一分辨率无法达到.