Question

18．在场的人们都为这些地震灾民担心，他们已被困三天，至今生死未卜．（trap）The people present are all worried about the earthquake victims，because they have been trapped for three days and it's unknown whether they are alive or dead．．

Answer 1

分析 The people present are all worried about the earthquake victims，because they have been trapped for three days and it's unknown whether they are alive or dead．

解答 The people present are all worried about the earthquake victims，because they have been trapped for three days and it's unknown whether they are alive or dead．
根据句意"他们已被困三天"可用现在完成时．"对难民的担忧及他们的生死未卜"用一般现在时．
本句可用because引导的原因状语从句，形容词present作后置定语修饰people；后面的从句中又包含whether引导的主语从句whether they are alive or dead，be trapped被困，alive or dead生或者死．

点评 根据句子的意思合理选择句式，并适当运用主从复合句来让句子的运用更加灵活．其中主句的谓语还可以用worry about等短语．