The author's attitude towards knowledge is -考呗网

单选题 The author's attitude towards knowledge is

A．slightly skeptical
B．optimistic but with certain cautiousness
C．overly enthusiastic
D．generallyneutral

B。本题考查作者的态度，应着眼于全文。文章主要谈论了科学知识的传播给人类社会的发展带来的好处，但是最后两段也提到了一些可能引发的问题，可见作者的态度总的来说是积极的，但是也有谨慎之处，故选B。

1 A suitable title for the passage would be __

A．Knowledge and World Economy
B．Diffusion of Science
C．The Earth's Learning Curve
D．Knowledge and Wisdom

A．Scafell
B．Ben Nevis
C．The Cotswolds
D．The Forth

3 The nation's capital city Washington D．C．and New York are located in

A．the American West
B．the Great Plains
C．the Midwest
D．the Middle Atlantic States