
【名词&注释】
有效成分(effective components)、能源消耗(energy consumption)、禾本科植物(grass)、防腐剂、科学家(scientist)、阿托品(atropine)、诺贝尔化学奖(nobel prize in chemistry)、水解反应(hydrolysis)、城市人口(urban population)、密切相关(closely related)
[单选题]含阿托品等成分,叶为镇痛、镇痉药。
A. 洋金花
B. 曼陀罗
C. 烟草
D. 颠茄
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举一反三:
[单选题]化学与人类生活密切相关(closely related)。下列说法正确的是:
A. 苯酚有一定毒性,不能作消毒剂和防腐剂
B. 白磷着火点高且无毒,可用于制造安全火柴
C. 油脂皂化生成的高级脂肪酸钠是肥皂的有效成分
D. 用食醋去处水壶中的水垢时所发生的是水解反应(hydrolysis)
[单选题]2008年诺贝尔化学奖(nobel prize in chemistry)授予了“发现和发展了水母绿色荧光蛋白“的三位科学家。将绿色荧光蛋白基因的片段与目的基因连接起来组成一个融合基因,再将该融合基因转入真核生物细胞内,表达出的蛋白质就会带有绿色荧光。绿色荧光蛋白在该研究中的主要作用是
A. 追踪目的基因在细胞内的复制过程
B. 追踪目的基因插入到染色体上的位置
C. 追踪目的基因编码的蛋白质在细胞内的分布
D. 追踪目的基因编码的蛋白质的空间结构。
[单选题]辣椒(Capsicum annuum)的果实为浆果。( )
A. 正确
B. 错误
[单选题]禾本科植物的一个小穗就是一朵花。( )
A. 正确
B. 错误
[多选题]下列种子属于有胚乳种子的是( )。
A. 小麦
B. 蓖麻
C. 洋葱
D. 油桐
[单选题]叉状脉是叶脉中最原始的类型。( )
A. 正确
B. 错误
[单选题]根据下面内容,回答 64~67题: CWe have met the enemy,and he is ours.We bought him at a pet shop.When monkey-pox,a disease usually found in the African rain forest,suddenly turns up in children in the American Midwest,it's hard not to wonder if the disease that comes from foreign animals is homing in on human beings.“Most of the infections(感染) we think of as human infections staned in other animals,” says Stephen Morse,director of the Center for Public Health Preparedness at Columbia University.
It’s not just that we’re going to where the animals are;we’re also bringing them closer to us.Popular foreign pets have brought a whole new disease to this country.A strange illness killed Isaksen’s pets,and she now thinks that keeping foreign pets is a bad idea.“I don’t think it’s fair to have them as pets when we have such a limited knowledge of them,” says Isaksen.
‘‘Laws allowing these animals to be brought in from deep forest areas without stricter control need changing,” says Peter Schantz.Monkey-pox may be the wake-up call.Researchers believe infected animals may infect their owners.We know very little about these new diseases. A new bug(病毒) may be kind at first.But it may develop into something harmful,(有害的). Monkey-pox doesn’t look a major infectious disease.But it is not.impossible to pass the disease from person to person.
第9题:We learn from Paragraph l that the pet sold at the shop may_____.
A. Popular foreign pets have brought a whole new disease to this country.A strange illness killed Isaksen’s pets,and she now thinks that keeping foreign pets is a bad idea.“I don’t think it’s fair to have them as pets when we have such a limited knowledge of them,” says Isaksen.
B. Monkey-pox may be the wake-up call.Researchers believe infected animals may infect their owners.We know very little about these new diseases. A new bug(病毒) may be kind at first.But it may develop into something harmful,(有害的). Monkey-pox doesn’t look a major infectious disease.But it is not.impossible to pass the disease from person to person.
D. come from Columbia
E. prevent us from being infected
F. enjoy being with children
G. suffer from monkey-pox
[单选题]每一节上着生一片叶,各叶开度为180°,称此叶序为( )。
A. 互生
B. 对生
C. 轮生
D. 交互对生
[单选题](十)近年来,长江三角洲在经济发展的同时,出现了热岛效应、咸潮侵袭、滩涂冲刷等一系列环境问题。21. 长江三角洲区域性热岛效应比较明显的主要原因是
A. ①能源消耗加大 ②城市人口(urban population)剧增 ③水域面积扩大 ④市郊农业发展
B. ①② B. ③④ C. ②④ D. ①③
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