[单项选择]Never has a scientific explanation emerged ______ someone somewhere has objected to it.
A. that
B. which
C. whom
D. but

[单项选择]Never has a scientific explanation emerged, ______ someone somewhere has objected to it.
A. that
B. which
C. whom
D. but

[单项选择]According to the explanation of the scientific rule of experiment in the passage, "hard-and-fast" means experiment procedures ______.
A. are difficult and quick to follow
B. must be carried out in a strict and quick way
C. must be followed strictly to avoid false and loose results
D. hard and unreasonable for scientists to observe

[单项选择]Man's attitude toward scientific discoveries has always been ______.
A. suspicious
B. undoubting
C. cynical
D. critical

[单项选择]

Sign has become a scientific hot button. Only in the past 20 years have specialists in language study realized that signed languages are unique -- a speech of the hand. They offer a new way to probe how the brain generates and understands language, and throw new light on an old scientific controversy: whether language, complete with grammar, is something that we are born with, or whether it is a learned behavior. The current interest in sign language has roots in the pioneering work of one rebel teacher at Gallaudet University in Washington, D. C. , the world’s only liberal arts university for deaf people.
When Bill Stokoe went to Gallaudet to teach English, the school enrolled him in a course in signing. But Stokoe noticed something odd: among themselves, students signed differently from his classroom teacher.
Stokoe had been taught a sort of gestural code, each movement of the hands representing a word in English. At the time, American Sign Language (ASL)
A. a new way to look at the learning of language
B. a challenge to traditional views on the nature of language
C. an approach to simplifying the grammatical structure of a language
D. an attempt to clarify misunderstanding about the origin of language

[单项选择]As the world has moved into a scientific age, the origin of herbal medicine in many countries remains shrouded in mystery and often sounds fantastic to those modern science.
A. (A) trained in
B. (B) averse to
C. (C) unprepared for
D. (D) beholden to
E. (E) neutral toward

[单项选择]The author has offered _______ explanation(s) for CEOs' failure in government career.
A. one
B. two
C. three
D. four

[单项选择]You are a new project manager who has never managed a project before．You have been asked to plan a new project．It would be BEST in this situation to rely on （） during planning in order to improve your chance of success．
A. your intuition and training
B. stakeholder analysis
C. historical information
D. configuration management

[单项选择]But college has never been able to work its magic for everyone.
A. 但是大学不是对每一个人产生它的魔术。
B. 但是大学没有对每一个人工作出它的魔术。
C. 但是大学从来就没有在每一个人身上显示出它的魔力。
D. 但是大学并没有在每一个人身上显示出它的魔力。

[单项选择]My little brother has never been to Beijing, but it's the place ______ .

[单项选择]My daughter has walked eight miles today. We never guessed that she could walk ______ far.
A. /
B. such
C. that
D. as

[单项选择]Mark has a very expensive watch and he never misses an opportunity to show it off.
A. 马克有一块价格昂贵的手表，他从不找机会去炫耀它。
B. 马克的手表非常昂贵，他一有机会就把它藏起来。
C. 马克有一块价格昂贵的手表，他总是一有机会就拿出来炫耀。
D. 马克有一块昂贵的手表，他从不错过机会给别人看它。

[单项选择]Henry has never been to the Summer Palace, and it’s the place _____.
A. in which he wants to visit
B. that he wants to visit it most
C. where he wants to visit
D. he wants to visit most

[单项选择]The disappearance of her paper has never been ______.
A. counted for
B. looked up
C. accounted for
D. checked up

[单项选择]She has never been to Tibet ______ .