1.At no time in histroy__such a mass migration of people from countryside to city as is happening now.
這個(gè)用倒裝
B has there been D has there
這兩個(gè)中該用哪個(gè)?兩個(gè)區(qū)別是什么啊?
1.___were the restrictions that prevented blacks voting.
A.Gone B Going C Go D Having gone
___were the restrictions
A,D的區(qū)別是什么?
1.At no time in history has there been such a mass migration of people from countryside to city as is happening now.（當(dāng)下,如此大規(guī)模的人口由農(nóng)村向城市遷移,在歷史上絕無僅有）.
可以將倒裝句進(jìn)行還原,There has been a mass migration mass migration of people from countryside to city as is happening now at no time.has there 沒有任何意思的,has there been 中的 has been 是表示現(xiàn)在完成時(shí),與 there be 放在一起使用.
2.Gone were the restrictions that prevented blacks voting.（阻礙黑人進(jìn)行選舉的限制因素已經(jīng)消除了.）
調(diào)整為 The restrictions that prevented blacks voting were gone.
Gone 是消失、失去的意思.Gone with the wind.（隨風(fēng)而逝）.
Were gone 表示的是被動(dòng)語態(tài)；Having gone 不表示任何意思,語法上錯(cuò)誤