问题补充：
Which of the following sentences doesn’t contain(包含) an object clause?
A. Many people believe robots will do most of our work.
B. Scientists should be able to develop plants that grow on Mars.
C. People think that humans on Mars have to wear special boots to make themselves heavier.
D. We all know the29th Olympic Games was held in Beijing.
答案：
A. Many people believe robots will do most of our work.
(答案→)B. Scientists should be able to develop plants that grow on Mars.
C. People think that humans on Mars have to wear special boots to make themselves heavier.
D. We all know the29th Olympic Games was held in Beijing.
解析：句意：下列句子哪个不包含宾语从句：A.很多人认为机器人将做我们的大部分工作。robots will do most of our work是宾语从句；B.科学家应能够培养出在火星生长的植物。that grow on Mars是定语从句修饰the plants；C.人们认为火星上的人必须穿上特制的靴子以使自己更重。that humans on Mars have to wear special boots to make themselves heavier是宾语从句； D.我们都知道 the29th 奥林匹克运动会在北京举行。 the29th Olympic Games was held in Beijing是宾语从句。故选B。
考点: 考查宾语从句的用法。
