Many college students today own personal computer that cost anywhere from $1,000 to perhaps %5,000 or more. (26)_____, it is not uncommon for them to purchase (27)_____costing another several hundred dollars. Twenty years ago, computers were (28) _____, but they were very large and extremely expensive. Few, if any,(29) _____ purchased computers for home use. Over the years, the price ofthe “guts” of a computer---its memory—has declined to less than a thousandth of the price per unit of memory that prevailed twenty years ago. This is the main reason why computers cost so much less today than they used to. Moreover, (30) ______improvements have made it possible to (31) _____memory circuitry that is small enough to fit into the portable personal computers that many of us own and use. (32)_____, as the price of computation has declined the average consumer and business have spent more on purchasing computers. (33)_____,improved agricultural technology,hybrid(杂交)seeds,(34)______animal breeding, and so on have vastly increased the amount of output a typical farmer can produce. The prices of goods such as meats and grains have fallen sharply relative to the prices of most other goods and services. As agricultural prices have fallen, many households have decreased their total expenses on food. Even though the (35)_______of a product purchased generally increases when its price falls, total expenses on it may decline.
28()延伸阅读
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Questions 12 to 15 are based on the conversation you have just heard.
What is the woman's wish for Mark?()
A.To quit smoking.
B.To find a girlfriend
C.To reduce his weight
D.To follow her advice.
To get a sense of how women have progressed in science take a quick tour of the physics department at the University of California, Berkeley.This is a storied place the 36 of some of the most important discoveries in modern science-starting with Ernest Lawrence’s invention of the cvclotron(回旋加速器)in 1931.A generation ago female faces were 37 and,even today,visitors walking through the first floor of LeConte Hall will See a full corridor of exhibits 38 the many distinguished physicists who made history here, 39 all of there white males But climb up to the third floor and you’ll see a 40 display.There,among the photos of current facnlty members and students are portraits of the 41 head of the department,Marjorie Shapiro and four other women whose reseaich 42 everything from the mecheanics of the universe to the smallest particles of matter.A sixth woman was hired just two weeks ago.Although they’re Still only about 10 percent of the physics faculty,women are clearly a presence here.And the real 43 may be in the smaller photos to the right graduate and undergraduate students about 20 percent of them female.Every years Berkeley sends its fresh female physics PhDs to the country’s top universities.That makes Shapiro optimistic but also 44 "I believe things are getting bette "she says "but they’re not getting better as 45 as i would like."
41()
A.circumstance
B.confidence
C.covers
D.current
E.deals
F.different
G.exposing
H.fast
I.honoring
J.hope
K.presently
L.rare
M.realistic
N.site
O.virtually
A.He is a person difficult to deal with
B.He dislikes any formal gathering
C.He is unwilling to speak in public
D.He often keeps a distance from others
Passage One Questions 16 to 19 are based on the passage you have just heard.
What do we learn from the news about the space shuttle mission?()
A.It failed because of a sudden rocket explosion.
B.It has been re-scheduled for a midday takeoff.
C.It has been canceled due to technical problems.
D.It was delayed for eleven hours and thirty minutes.
Passage Two Questions 20 to 22 are based on the passage you have just heard.
What does the speaker think might be a better way to resolve the problem?()
A.Asking the neighborhood committee for help.
B.Limiting the amount of laundry for each wash.
C.Informing the building manager of the matter.
D.Installing a few more washers and dryers.
Questions 12 to 15 are based on the conversation you have just heard.
What did Mark and Tim have in common?()
A.They are overweight for their age
B.They are respectful to their parents
C.They are still in their early twenties
D.They dislike doing physical exercise.
Passage Three Questions 23 to 25 are based on the passage you have just heard.
What does the speaker tell us about Sethe, the main character, in Morrison’s novel Beloved"!()
A.She is a relative of Morrison’s.
B.She is a skilled storyteller.
C.She is a slave from Africa.
D.She is a black woman
To get a sense of how women have progressed in science take a quick tour of the physics department at the University of California, Berkeley.This is a storied place the 36 of some of the most important discoveries in modern science-starting with Ernest Lawrence’s invention of the cvclotron(回旋加速器)in 1931.A generation ago female faces were 37 and,even today,visitors walking through the first floor of LeConte Hall will See a full corridor of exhibits 38 the many distinguished physicists who made history here, 39 all of there white males But climb up to the third floor and you’ll see a 40 display.There,among the photos of current facnlty members and students are portraits of the 41 head of the department,Marjorie Shapiro and four other women whose reseaich 42 everything from the mecheanics of the universe to the smallest particles of matter.A sixth woman was hired just two weeks ago.Although they’re Still only about 10 percent of the physics faculty,women are clearly a presence here.And the real 43 may be in the smaller photos to the right graduate and undergraduate students about 20 percent of them female.Every years Berkeley sends its fresh female physics PhDs to the country’s top universities.That makes Shapiro optimistic but also 44 "I believe things are getting bette "she says "but they’re not getting better as 45 as i would like."
40()
A.circumstance
B.confidence
C.covers
D.current
E.deals
F.different
G.exposing
H.fast
I.honoring
J.hope
K.presently
L.rare
M.realistic
N.site
O.virtually
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