【名词&注释】
科学发展(scientific development)、新方法(new method)、社会转型时期(the period of social transformation)、必要条件(necessary condition)、新领域(new field)、植物种子(plant seed)、慈善机构(charitable institution)、向日葵属(helianthus)、被子植物分类(classification of angiosperm)、异花传粉(cross pollination)
[单选题]三人在各自建立的被子植物分类(classification of angiosperm)系统中均坚持真花学说和单元起源的观点。①哈钦松(森) ②恩格勒 ③威兰 ④胡先骗 ⑤塔赫他间 ⑥克朗奎斯特
A. ①、②、③
B. ①、②、④
C. ①、④、⑤
D. ①、⑤、⑥
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举一反三：
[单选题]She brought with her three friends, none of ______I had ever met before.
A. them B． who
B. whom D． these
[单选题]某条多肽的相结分子质量为2778，若氨基酸的平均相对分子质量为110，如考虑终止密码子，则编码该多肽的基因长度至少是
A. 75对碱基
78对碱基
90对碱基
93对碱基
[单选题]近代早期（16—18世纪）是欧洲重要的社会转型时期。回答19-21题。19.哥白尼学生虽被后来的科学发展所扬弃，但人们仍然视其为一场“革命”。这是因为它
A. 撼动了中世纪神学基础，显示了挑战权威的态度
B. 开创了近代实验科学，提出了研究自然地新方法
C. 概括了宇宙运动规律，指引了人类认识自然的方向
D. 开辟了天文学新领域，标志着近代自然科学的形成
[单选题]虽然不同植物种子的形状各不相同，但它们的基本结构是一致的。( )
A. 正确
B. 错误
[单选题]The experiment is carried cut to prove ______.
A. water pushes on your body when you swim underwater.
B. the earth is surrounded by a layer of air called the atmosphere.
C. the pressure of air around us has a powerful force.
D. the air pressure is not equalized around us.
[单选题]的缘花为管状花，且为雌性。
A. 菊属
B. 蒿属
C. 向日葵属(helianthus)
D. 苍耳属
[单选题]AChristopher Thomas, 27, was a writer by night and a teacher by day when he noticed he was always tired and was losing weight fast. Diagnosed with diabetes(糖尿病), Thomas would need to inject himself with insulin(胰岛素) three times a day for the rest of his life or risk nerve damage, blindness, and even death. And if that weren't bad enough, he had no health insurance.
A. After a month of feeling upset, Thomas decided he'd better find a way to fight back. He left Canton, Michigan for New York, got a job waiting tables, nicknamed himself the Diabetic Rockstar, and created diabeticrockstar.com, a free online community for diabetics and their loved ones—a place where over 1,100 people share personal stories, information, and resources.
B. Jason Swencki’s son, Kody, was diagnosed with type diabetes at six. Father and son visit the online children's forums(论坛) together most evenings. "Kody gets so excited, writing to kids from all over," says Swencki, one of the site's volunteers. "They know what he's going through, so he doesn't feel alone."
C. Kody is anything but alone: Diabetes is now the seventh leading cause of death in the United States, with 24 million diagnosed cases. And more people are being diagnosed at younger ages.
D. These days, Thomas's main focus is his charity（慈善机构(charitable institution)）, Fight It, which provides medicines and supplies to people—225 to date—who can't afford a diabetic's huge expenses. Fight-it.org has raised about $23,000—in products and in cash. In May, Thomas will hold the first annual Diabetic Rockstar Festival in the Caribbean.
E. Even with a staff of 22 volunteers, Thomas often devotes up to 50 hours a week to his cause, while still doing his full-time job waiting tables. "Of the diabetes charities out there, most are putting money into finding a cure," says Bentley Gubar, one of Rockstar's original members. "But Christopher is the only person I know saying people need help now."
F. 56. Which of the following is true of Christopher Thomas?
G. He needs to go to the doctor every day.
H. He studies the leading cause of diabetes
I. He has a positive attitude to this disease.
J. He encourages diabetics by writing articles.
[单选题]女贞花中仅有2枚雄蕊，称二强雄蕊。( )
A. 正确
B. 错误
[单选题]花单性是进行异花传粉(cross pollination)的必要条件。( )
A. 正确
B. 错误
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