问题 选择题

自然选择学说是由下列哪位科学家创立的(  )

A.袁隆平

B.达尔文

C.米勒

D.巴斯德

答案

A、袁隆平,北京人,汉族,运用生物科学技术,在育种中利用野生稻与栽培稻杂交,培育的杂交水稻是利用了野生水稻和栽培水稻的基因组合培育出的新品种,从而利用其杂交优势,提高水稻的产量.是著名的世界杂交水稻之父. 不符合题意.
B、达尔文,英国生物学家,进化论的奠基人,在探究生物进化奥秘的过程中,具有重要贡献,提出了自然选择学说,被恩格斯赞誉为“19世纪自然科学三大发现”之一.符合题意.

C、美国科学家米勒曾制作了一个模拟原始地球的实验装置,不符合题意.

D、巴斯德是法国微生物学家、化学家,巴斯德通过实验证明微生物只能来自微生物,而不能凭空产生.他做的一个最令人信服、然而却是十分简单的实验就是“鹅颈瓶实验”,还发现了酵母菌以及保存酒和牛奶的巴氏消毒法,被称为“微生物学之父”.不符合题意.

故选:B

阅读理解

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。(共5题,每小题2分,满分10分)

Active listening is an essential skill in learning. It is when you listen carefully to make sure you understand and learn the information that is being conveyed.   1   Here are some things which can help you to listen actively.

Listen for the main point and major subpoints(次要点). Don’t just write everything down. Listen carefully and make sure you understand what the purpose of this lecture is. As you take down notes, keep the main point in mind and make sure you understand how these notes are related.

Listen for an organizational structure. Listen carefully to figure out how the ideas are organized and they will make more sense.

Pay attention to organizational cues(暗示).   2  Pay close attention to the introduction, as it will probably indicate how you should organize your notes. If the lecture begins with, “ Today, I’m going to talk about three conflicts in the Middle East,” then you have a good idea of what’ s going to follow. Listen for “signpost” words to indicate a transition for one point to the next, such as “next” and “finally” and numerical signposts like “first” or “third”.

Listen with your eyes.    3  Watch the teacher and be aware of how he or she uses hand gestures, eye contact and other body language to convey points.

___4____ Put away the campus newspaper, your cell phone and anything else that might be more interesting than the lecture. Learning to concentrate and listen actively is an endurance(持久) skill.   5   

A. Speakers communicate information through nonverbal(不使用语言的) communication.

B. Unfortunately, many students don’t know how to listen actively when they attend classes.

C. If your teacher indicates that something is important ,mark it.

D. Make yourself do it, and it will get easier over time.E.  Listen carefully for words and phrases that reflect the organizational structure of the lecture.

F.  Your teachers’ notes are probably organized into some kind of outline.

G.  Remove distractions.

问答题 简答题