正确答案: A
ignorant
题目:Science is still ______ of the causes of many kinds of cancer.
解析:解析:ignorant可以指“无学识的,愚昧的”,还指“不知道的”;unconscious意为“失去知觉的,不省人事的;无意识的”;conscious意为“有知觉的,意识到的”;informed意为“获悉,告知”。
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学习资料的答案和解析:
[单选题]Tom: You are playing guitar well. Can you read music? Charles: No, I don't. I just listen to songs on the radio and then play them until they sound right. Tom: ______ Charles: No, really.
You're kidding
解析:解析:Tom对Charles不识乐谱也能弹得一手好吉他感到难以置信,这种情况下一般说 You're kidding或You're joking,意思是:“你在开玩笑吧!”或“这不是真的!”。其他几个选项分别表示“撒谎”、“吹嘘”、“欺骗”,都不恰当。
[单选题]He was in a hurry and left things in a real ______.
mess
解析:解析:in a mess意为“处于混乱之中”;mixture意为“混合,混合物”;mass意为“一块”;confusion意为“混乱,混淆”。
[单选题]
B. as
C. and
D. but
正确答案:D解析:本句话是一个转折关系,应该由but一词体现前后的对比关系。全句意思为:也许他们是胜利者,但他们肯定不是最文明的。
but
解析:解析:本句话是一个转折关系,应该由but一词体现前后的对比关系。全句意思为:也许他们是胜利者,但他们肯定不是最文明的。
[单选题]What should you do ff your child is under six years old?
You should ask the doctor for advice.
解析:解析:本题的依据句为“For children under six years old consult your doctor.” consult your doctor=ask your doctor for advice,与D选项意思一致。其他选项内容属于错误信息。