几道高中英语选择题~帮忙详细解答~谢谢~

Question

几道高中英语选择题 希望可以解答 谢谢~需要答案 翻译~解析 以及 指出重点词组和固定用法~~非常感谢~~1.But fot the help of my English teather, I __ the first prize in the English Writing Competition.A.would not win B.would not have won C.would win D.would have win2.But fou there help , we __ the program in time.A.can not finish B.will not finish C.had not finished D.could not have finished3.This print is ofgood quality. If it __ break down within the first year ,we would repair it at ourexpense.A.would B.should C.could D.might4. With the help of high technology, more and more new substances __ in the past year.A.discovered B.have discovered C.had been discovered D.have been discovered5.--Did Alan enjoy seeing his old friends yesterday? --Yes, he did. He __ his old friends for a long time.A.didn't see B.wouldn't see C.hasn't seen D.hadn't seen6.The country lift he was used to __ greatly since 1992.A.change B.has changed C.changing D.have changed

Answer 1

1.A.would not win 要是没有我英语老师的帮助，我也获得不了英语写作比赛一等奖。句子为含蓄条件句。
2.D.could not have finished 要是没有他们的帮助，我们也不能及时完成这个项目。句子为含蓄条件句。
3.B.should 这种印刷机质量很好，要是一年内坏了，我们将免费修理。句子为与将来事实相反假设的虚拟语气。
4.C.had been discovered 在高科技的帮助下，越来越多的物质在去年被发现。句子为与过去事实相反假设的虚拟语气。
5.D.hadn't seen 昨天Alan见到他朋友高兴吗？是的，很高兴。他好长时间没见他朋友了。句子为过去完成时。
6. B.has changed 他已经习惯的农村生活方式自从1992年以来已经发生了很大变化。句子为现在完成时。

Answer 2

1虚拟语气，前句为假设，要不是英语老师的帮助，后一句对现在的虚拟，用过去时。A
2虚拟语气，同上，D
3句子为与将来事实相反假设的虚拟语气。B
4句子为与过去事实相反假设的虚拟语气。C
5 for a long time说明用完成时，然后，整个句子都是过去时，所以最终选择过去完成时。
6he was used to去掉这个定语，The country lift has changed __ greatly since 1999，因为时间状语是since，所以选择完成时。

Answer 3

1.B
2.D
3.B
4.D
5.D
6.B
看看答案对不，对了我再解释，第一题明显的选B，虚拟语气的含蓄句式

Answer 4

1.D【已经获奖了，现在完成时--由于英语老师的帮助，我获得了英语写作竞赛一等奖]】
2.A【和 要和IN TIME连用的、此题考察but for 的用法，因为没有那些帮助，所以我们没能及时完成那个项目]】
3.D【此题考察虚拟语气的用法，主句用WOULD DO 形势，所以从句用过去时]】
4.A【看状语，in the past year,过去时]】
5.C【看状语，for a long time ,这段时间一直都没去看，现在完成时]】
6.B【be used to be done ,看状语since1992，故选B，】

Answer 5

D A D A C B