[单项选择]______ mainly for the invention of the telephone, Alexander Graham Bell devoted his life to helping the deaf.
A. He is remembered
B. To remember
C. While remembering
D. Though remembered

[单项选择]While (remembering) mainly (for) the invention of the telephone, Alexander Graham Bell devoted his life (to) (helping the deaf).


A. remembering
B. for
C. to
D. helping the deaf

[填空题]Technological invention has directly or indirectly produced social change in every period of history. The invention of the horse collar in the Middle Ages was a (S1) ______ technological advance for agriculture; the (S2) ______ for use at sea so (S3) ______ navigation in the fifteenth century that it led in the age of (S4) ______ ; and the steam engine was an (S5) ______ factor in the industrialization of Europe in the nineteenth century. A discovery is another kind of technological (S6) ______. While inventions add something new to a culture, discoveries increase our knowledge of something that already exists. Gravity had always been there, but Newton "discovered" it: he (S7) ______ how this natural force worked and how its laws applied to falling bodies. This knowledge made possible many new inventions. (S8) ___________________________________________________. Since each invention makes more inventions possible, the speed of technological development tends to accelerate. Ben

[单项选择]What invention incorporated the principles of light and radio radiation


A. satellite communication
B. X-ray
C. the laser beam
D. continuous wave

[单项选择]The invention of electricity made great contribution to civilization ______ which subsequently there are few findings comparable until now.


A. to
B. in
C. for
D. from

[单项选择]Before the invention of photoengraving, steel and copperplate engraving served as the principal means of reproducing illustrations.


A. visions
B. pictures
C. advertisements
D. pages

[单项选择]The successful completion of the invention is the result of the cooperation and confidence of all the staff.（）
A. 全体人员的合作和信任导致了此项发明的成功。
B. 成功地完成此项发明是全体人员互相合作、互相信任的结果。
C. 这项发明成功了，结果使全体人员更加合作、更加信任。
D. 此项发明很成功，是因为全体人员互相合作、互相信任。

[单项选择]The passage is mainly about


A. computer crimes
B. banking via computer
C. computer errors
D. computer businesses

[单项选择]The invention of paper meant more people could be educated because more books could be printed and ___________.


A. distributed
B. broadcasted
C. scattered
D. spread

[单项选择]How popular did Goldman's invention finally become


A. Men and women models used shopping carts in his stores.
B. Store greeters instructed customers in how to use the shopping carts.
C. Some stores had to wait several years to get his shopping carts.
D. His shopping carts had become so stylish that both men and women liked to use them.

[填空题]The grant of a patent on an important invention is a great social event.