高考总复习英语知识点大全71：IF 与 UNLESS 的异同.doc

1、高考资源网（） 您身边的高考专家高中英语知识点大全（71）: if 与 unless 的异同1、if 与 unless 的异同1)通常unless 等于if not 如：I wont go unless he comes.= I wont go if the doesnt come.2)在下面的句子中不可做此替换。如：Ill be surprised if he doesnt have an accident. 他要是不出事故，我倒会感到奇怪了。unless 不能用于“由于未发生B而产生A”的句子，再如：Ill be quite glad if she doesnt come this eve

2、ning. 要是他今晚不来，我才高兴呢。2、imagine1）接名词、代词：You cant imagine the life on the island.你无法想象岛上的生活。2）接动名词：She never imagined her going abroad for further education.她从没设想过会出国深造。3）接从句：You cant imagine how worried I was those days.你想象不到那几天我是多么焦虑啊。4）接复合宾语：The boy imagined himself to be a hero. 这男孩把自己想象成了英雄。应用 选择正

3、确答案I can hardly imagine Peter _across the Atlantic Ocean in five days.(MET91)A.sail B.to sail C.sailing D.to have sailedKey:C3、improve1)用作及物动词，意为“改善，使更好，增进，提高”。如：improve ones English/ the living conditions/ ones method of study/ oneself in maths提高英语水平/改善居住条件/改进学习方法/提高教学水平2)用作不及物动词，意为“变得更好，增加”。如：Afte

4、r two days rest his health is improving.经过两天的休息，他的健康状况在好转。3)用作名词：improvement of soil土壤改良；make improvement in 在某方面作出改进应用一句多译他的中文水平在不断提高。这篇文章你最好有所改进。Key:His Chinese is improving./ He is improving his Chinese.Youd better improve your article./ Youd better make improvement in your article. - 2 - 版权所有高考资源网