题目内容
【题目】In our factory there are 2,000 workers, two thirds of ___________ are women.
A. them B. which C. whom D. who
【答案】C
【解析】two thirds of whom即two thirds of the 2,000 workers。
【题目】The father as well as his three children ________ skating on the frozen river every Sunday afternoon in winter.
A. is going B. go
C. goes D. are going
【题目】(2017·天津)—I want to see Mr. White. We have an appointment.
—I’m sorry, but he is not ___________ at the moment, for the meeting hasn’t ended.
A. busy B. active C. concerned D. available
【题目】
--- You should have thanked her before you left.
--- I meant , but when I was leaving I couldn’t find her anywhere.
A. to
B. to do
C. doing
D. to doing
【题目】(2014·浙江) There’s no reason to be disappointed. , this could be rather amusing.
A. Above all B. As a result
C. In addition D. As a matter of fact
【题目】阅读材料,完成下列要求。
图一是塞尚的一幅静物画。强烈的黑与白、冷与暖的色彩反差,似乎这一切都是那么“凝固”。塞尚的画强调立体感,被表现的物体虽然故意变形,但有一种独特的生命力。
图二是一幅20世纪30年代的作品,它是当时兴起的抽象表现主义代表作之一。
(1)根据材料和所学知识判断两幅画所属的派别并指出两者在表现形式上的不同特点。
(2)指出两幅图画反映的美术派别所产生的时代背景。
(3)指出两幅图画所属的艺术派别在表现方式方面的差异。
【题目】(12分)核酸是一切生物遗传信息的携带者,请结合所学知识回答下列问题:
(1)图中①②③④分别代表:________、________、________、________。
(2)若上图为脱氧核苷酸链,则还应有的碱基是________,而图中②是________,④是________。若上图为核糖核苷酸链,则还应有的碱基是________。
(3)从空间结构上看,DNA一般是由________条________链构成,RNA通常由________条________链构成。
【题目】(11分)下图表示处于不同生理状态的三个洋葱鳞片叶表皮细胞,请回答下列问题。
(1)图中A细胞所处的生理状态是_____________________。
(2)图中各细胞的细胞液浓度大小依次是_____________________。
(3)如图所示,A、B、C三个细胞处于不同浓度的溶液中,则A细胞与B细胞所处的外界溶液浓度大小关系是_____________________。
(4)图中①处充满的是_____________________,三个细胞中最有可能先死亡的是_____________________。
(5)假设将洋葱鳞片叶表皮细胞制成装片,并使之处于高渗溶液中而发生质壁分离,用显微镜观察一个细胞的质壁分离过程,发现该细胞形态的变化顺序将如图所示的从_____________________→_____________________→_____________________。
(6)在实验中,能使盖玻片下的细胞从A细胞所处状态变成B细胞所处状态的操作是_____________________。
【题目】 (2015·陕西)As the smallest child of his family, Alex is always longing for the time he should be able to be independent.
A. which B. where
C. whom D. when