1.【答案】reacts three times as fast as the other one

本題考查倍數(shù)的表達方式。倍數(shù)表達法有三種：A倍數(shù)+原級B 倍數(shù)+比較級C倍數(shù)+名詞短語。例如：和……的三倍一樣長可以譯為：

A.three times as long as B.twice longer than C.three times the length of

2.【答案】or the wedding will have finished by the time we get to the church

將來完成時。

3.【答案】killing thousands upon thousands of people

分詞作結(jié)果狀語。

4.【答案】Whatever be the reasons for it

whatever“無論是什么”引導的狀語從句。

5.【答案】especially in developed countries

“發(fā)達國家”和“發(fā)展中國家”的表達方式分別為developed country, developing country。