_no gravity,there would be no air around the earth. A;If there was B;Were there

显示全部楼层 · 2013-4-29 12:02:34

你好，很高兴为你解答。保证正确率~！正确答案是：B【解析】：这个句子考察了虚拟语气及其省略。其实原句是这样的：If there were no gravity , there would be no air around the earth.将If省略了，再将 were 提前。虚拟语气里面只有 were ，没有 was，所以A 的was 改为were就对了。不懂请追问，(*^__^*) 嘻嘻~~望采纳，祝开心~！！！...

千问 · 2013-4-29 12:02:34

不可以这句是虚拟语气，if引导的非真实条件句（与现在相反）非真实条件句的要求就是be动词用were表示，而A是真实条件句的过去形式B才是正确的，非真实条件句的倒装...