标题: [求助]一些语法题 [打印本页] 作者: xiaobaitu0529 时间: 2003-9-23 10:00 标题: [求助]一些语法题 （It seems） probable that prehistoric people （who discovered）, by trial and error, which plants （were poisonous） and which had （some） medicinal value. 我不知道 B 如何改。 The （migration route） of the first humans to occupy North America took （them across） a land bridge that once （was connected） Asia with （what） is now Alaska. C 怎么错了？ （Although） absolute zero cannot （actually） be reached, approximations of （less than） 0.001 degrees Celsius above absolute zero have been （created） the laboratory. 不太明白怎么改 D It is (highly) recommended that any person (exploring) a cave (carries) a source of (artificial) light. 答案说 C 错了，要把 carries 改为 carry， 不太明白， 为什么？ 明明是单数呀。 Education in the United States is overseen by (local) school districts, (which) follow (regulations) mandated by their respective state (government)。 D 怎么错了？ 难道不能说 state government 吗？ precipitation in (mountanious) regions that (collects) in a number of (small) valleys that (are called) rills and gullies. collects 没错呀？
作者: chipmunk 时间: 2003-9-23 10:29
1) B--> Remove 'which'; 2) C--> 'connected'; 3) D--> should add 'in' the laboratory; 4) C--> this claus omit 'should', so 'carry' is right; 5) D--> 'governments'?, just to match 'districts' 6) B--> 'collected'