Question

A communicative satellite ________ as much as 3.5 tons was sent up into space last week.

1. A.
   weighing
2. B.
   weighed
3. C.
   to be weighed
4. D.
   being weighed

Answer 1

A
考查非谓语动词。句意：上周向太空发射了一颗重达3.5吨的通讯卫星。此处weigh是不及物动词，意为“重”。weighing as much as 3.5 tons是定语，修饰satellite, satellite与weigh之间是主动关系。后三项中weigh都是及物动词，表示“称重量”，语义不符。