ensure的過去式和用法例句

　　ensure有擔(dān)保;保證;使安全;確保等意思，那么你知道ensure的過去式是什么嗎?下面學(xué)習(xí)啦小編為大家?guī)韊nsure的過去式和用法例句，歡迎大家學(xué)習(xí)!

　　ensure的過去式和其他時(shí)態(tài)：

　　過去式: ensured

　　過去分詞: ensured

　　現(xiàn)在分詞: ensuring

　　ensure的用法：

　　ensure的用法1：ensure的基本意思是指某人向其他人作出口頭或書面上的承諾,強(qiáng)調(diào)使人確信某個(gè)行為或力量的后果會(huì)肯定地、不可避免地、有把握地出現(xiàn)。

　　ensure的用法2：ensure既可用作及物動(dòng)詞,也可用作不及物動(dòng)詞。用作及物動(dòng)詞時(shí),可接名詞和that從句作賓語, that從句可用陳述語氣,也可用虛擬語氣。

　　ensure的用法3：ensure也可接雙賓語,其間接賓語可以轉(zhuǎn)換為介詞for的賓語。用作不及物動(dòng)詞時(shí),后可接介詞from〔against〕,表示“保護(hù)某人不受危害”。

　　ensure的過去式例句：

　　1. An automatic voltage regulator ensured a constant output from the generator.

　　一個(gè)自動(dòng)電壓調(diào)節(jié)器保證了發(fā)電機(jī)電流輸出的穩(wěn)定。

　　2. They had ensured the plumbing was overhauled a year ago.

　　他們曾保證水管一年前徹底檢修過。

　　3. Her father always ensured she was well provided for.

　　她的父親總是確保她衣食無憂。

　　4. The programme's awfulness has ensured it is talked about.

　　節(jié)目如此糟糕，肯定會(huì)被人議論。

　　5. The book ensured his success.

　　這本書保證了他的成功。

　　6. Proper clothing ensured us against suffering from the cold.

　　衣服穿得合適,我們就不會(huì)挨凍.

　　7. The craftsmen have ensured faithful reproduction of the original painting.

　　工匠保證要復(fù)制一幅最接近原作的畫.

　　8. We ensured it to be pure.

　　我們擔(dān)保它是純的.

　　9. Britain's negotiators had ensured that the treaty which resulted was a significant change in direction.

　　英國談判代表已經(jīng)擔(dān)保由此而簽訂的條約將是方向上的重大改變。

　　10. His outspokenness has ensured that he has at least one senior enemy within the BBC hierarchy.

　　他的坦率直言已經(jīng)使得他和英國廣播公司內(nèi)部的至少一位高層樹了敵。

　　11. A major order ensured that our business got off to a good start.

　　一份大額定貨單確保了我們的生意有了良好的開端.

　　12. What troubles me is that the supply of raw materials is not ensured.

　　使我擔(dān)憂的是原料供應(yīng)沒有保證.

　　13. The livelihood of retired personnel is ensured by the state and society.

　　退休人員的生活受到國家和社會(huì)的保障.

　　14. Something approximating to a fair outcome will be ensured.

　　保證會(huì)有大致公正的結(jié)果。

　　15. He carefully joined the cables and ensured the connections were solid.

　　他小心地接上導(dǎo)線,確保連接牢固.