内容正文:
核心句式 Unit4 (解析版)
2021-2022学年高二英语下册链接教材精准变式练(人教版2019)
(
教材
核心词汇
知识链接
及典例解读
)
1. 含蓄条件句
教材 P39 》Without Frank and Ernest,we'd all be dead by now.要不是有弗兰克和欧内斯特,我们到现在早就没命了。
句式剖析 本句的结构分析如下∶
Without Frank and Ernest, we'd all be dead by now.
介词短语,表示条件 表示与现在事实相反的假设
考点提炼 含蓄条件句
虚拟条件句的条件有时不通过条件从句来表示,而是通过介词短语、上下文或其他方式表现出来,这种虚拟条件句叫作含蓄条件句。
含蓄条件句的具体用法如下;
(1)通常省略虚拟条件句的条件从句
(2)含蓄条件的常见表现方式
a.将条件隐含在介词短语中。常见的(短语)介词有 without,but for等。
b.将条件隐含在某些连词中。常见的此类连词有 or,but,but,that 等。
c.将条件隐含在某些副词中。常见的副词是otherwise。d.将条件隐含在特定的上下文中。
(3)谓语的形式
would/might/could/should++动词原形(与现在或将来事实相反的假设)
would/might/could/should+have+过去分词(与过去事实相反的假设)
Without water,there would be no life on the earth.如果没有水,地球上就不会有生命。
But for your help,we couldn’t have succeeded.要不是你帮忙,我们不可能成功。
I got up very early yesterday morning,or I could not have caught the first bus.
昨天早上我起床很早,否则就赶不上首班公共汽车了。
I was too busy at that time.Otherwise,I would have called you.
我当时太忙了,否则我就给你打电话了。
1.语法填空
①(北京高考单项填空改编)Without his support, we wouldn't__________(be) where we are now.
②(天津高考单项填空改编)--Do you have Betty's phone number?
—Yes. Otherwise,I wouldn't ________(be)able to reach her yesterday.
2.完成句子
飞机晚点一个多小时才起飞,否则我就不会让你等这么久了。
There was a delay of over an hour before the plane took off;otherwise,I_____________(keep)you waiting for such a long time.
【答案解析】1.①be。根据"Without his support"和后面的语境可知,此处是含蓄条件句且表示与现在事实相反的假设,故句子谓语应用"would+动词原形"的形式。
②have been。"Otherwise,I….yesterday"是含蓄条件句,此处表示与过去事实相反的假设,故空处应填 have been。
2.would/might/could/should not have kept
2. 虚拟语气在非真实条件句中的用法
教材P44》If it weren't for sea animals,we would all starve.要不是有海洋动物,我们都得挨饿。
句式剖析
本句是虚拟条件句,表示与现在事实相反的假设。if 从句的谓语是were,其对应的主句的谓语形式是"would+动词原形"。
考点提炼
虚拟语气在非真实条件句中的用法
从句谓语的形式
主句谓语的形式
与现在事实相反
过去式(be动词一般用were)
would/could/should/might + 动词原形
与过去事实相反
had +过去分词
would/could/should/might have +过去分词
与将来事实相反
A. 过去式(be 动词一般用 were)
B.were to+动词原形
C.should+动词原形
would/could/should/might + 动词原形
If i lived near my office,I would walk to work.如果我住在办公室附近,我就会步行去上班。(与现在事实相反)
If I we