Question

18．在場的人們都為這些地震災(zāi)民擔(dān)心，他們已被困三天，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．
根據(jù)句意"他們已被困三天"可用現(xiàn)在完成時．"對難民的擔(dān)憂及他們的生死未卜"用一般現(xiàn)在時．
本句可用because引導(dǎo)的原因狀語從句，形容詞present作后置定語修飾people；后面的從句中又包含whether引導(dǎo)的主語從句whether they are alive or dead，be trapped被困，alive or dead生或者死．

點評 根據(jù)句子的意思合理選擇句式，并適當(dāng)運(yùn)用主從復(fù)合句來讓句子的運(yùn)用更加靈活．其中主句的謂語還可以用worry about等短語．