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[主观题]

Actually, over 60 percents of the world s 580 million older people live in developing coun

tries. An increasing number of people in these lands are reaching old age【C1】______better health care and improvements in sanitation, housing, and【C2】______. Older people make【C3】______contributions by doing work for which they are not paid.【C4】______, an estimated 2 million children in the United States are being【C5】______by their grandparents, with 1.2 million of them living in their grandparents home . Thus older people provide shelter, food, and education and carry cultural【C6】______to their grandchildren while enabling mothers and fathers to continue as members of the work force.【C7】______, in the industrialized world, many volunteer organizations would not【C8】______without the contribution made by older people. They are also much - needed【C9】______. In some developing countries, where【C10】______30 percent of the adult population have contracted AIDS, older people care for their infected adult children after whose death they will have to raise their grandchildren.

【C1】

A．as usual as

B．as a result of

C．as a rule for

D．as a matter of

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发布时间：2022-12-02

更多“Actually, over 60 percents of the world s 580 million older people live in developing coun”相关的问题

第1题

The suit _____ over 60 dollars.

A、had costed

B、costed

C、is costed

D、cost

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第2题

Every weekend from September through January, football seems to be the most important even

t in the lives of millions of Americans. Thousands of people【C1】______to stadiums all over the country to【C2】______football games; even【C3】______fans watch the games on the television or listen to broadcasts on the radio. American football is different from the game that is【C4】______as football in most of the rest of the world. International football is called soccer in the United States,【C5】______it is a comparatively new game. It is beginning to become popular,【C6】______it doesnt attract crowds nearly as big as【C7】______that attend games of American football. Soccer games are shown on Television only【C8】______in a while, usually【C9】______a famous player in taking part. American football games are played by both amateurs, who dont get paid, and by【C10】______, who do. Almost【C11】______high school and university in the country has an amateur football team. In addition, there are professional teams in most of the larger cities. Besides football, the most【C12】______games in the United States are baseball and basketball. All of these【C13】______are spectator sports that is only a few people actually take part in them【C14】______many more(into the millions, in fact)only watch【C15】______. Participant sports are not usually as organized as spectator sports ; they include【C16】______activities【C17】______swimming, tennis and golf. Spectator sports give average people the【C18】______to identify with athletes who seem a little larger than life. Football players in the United States and soccer players in other【C19】______have become popular heroes. Football also gives people the opportunity to become a【C20】______of a community to cheer for New York over Chicago, or for San Paulo over Rio de Janeiro.

【C1】

A．travel

B．visit

C．go

D．walk

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第3题

Britain probably has the largest density of road traffic in the world — over 60 cars

for every mile of road.()

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第4题

There shall be two principal ______ through the harbor for the passage of vessels of over

60 tons burden．

A.straits

B.channels

C.canals

D.roadsteads

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第5题

We have tested a plant's emissions of particulates and found the following data: Sampl

We have tested a plant's emissions of particulates and found the following data:

Sample number

Stack velocity, ft/s

Particle concentration, g/m³

1

2

3

50

60

40

0.50

0.30

0.70

Each sample represents the average over a 20-min period. What was the average particle concentration in this stack over the whole 60 min of this test？

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第6题

一星形联结三相同步电动机，电枢加额定电压UN=380 V，I1=60 A，R1=0．2 Ω，n=3 000 r／min，λ=0．85，η=90

％。求P1、Pe、P2、T、T2和T0。

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第7题

【D5】JOHN: OH ANNE, THAT WAS A WONDERFUL DINNER. THAT" S THE BEST MEAL I" VE HAD IN A LONG

【D5】

JOHN: OH ANNE, THAT WAS A WONDERFUL DINNER. THAT" S THE BEST MEAL I" VE HAD IN A LONG TIM

E. ANNE: OH, THANK YOU! THANK YOU VERY MUC

H. JOHN: CAN I GIVE YOU A HAND WITH THE DISHES？ ANNE: UH-UH, DON"T BOTHER.【D5】______HEY, WOULD YOU LIKE ME TO FIX SOME COFFEE？ JOHN: UH, THANKS A LOT. I"D LOVE SOM

E. UH, WOULD YOU MIND IF I SMOKE？ ANNE: WHY, NOT AT ALL HERE, LET ME GET YOU AN ASHTRAY. JOHN: AW, THANKS VERY MUC

H...OH, ANNE, 【D6】______ ANNE: ACTUALLY, I" VE ONLY JUST LEARNED HOW, YOU KNOW. IT" S BECAUSE I" VE BEEN TAKING THESE COURSES. JOHN:WHY, I CAN"T COOK AT ALL, CAN"T EVEN BOIL AN EG

G. ANNE: NO KIDDIN

G.【D7】______YOU COULD TAKE A COUPLE OF CLASSES OVER AT SHERIDAN COLLEGE AND LEARN HOW TO DO IT TOO. JOHN:AW, THANKS A LOT. A. I DIDN" T REALIZE YOU WERE SUCH A GOOD COO

K.

B. I"LL DO THEM MYSELF LATER.

C. WELL, YOU KNOW, IF YOU WANT TO,

D. DO YOU MAKE IT BY YOURSELF？

点击查看答案

第8题

【D7】JOHN: OH ANNE, THAT WAS A WONDERFUL DINNER. THAT" S THE BEST MEAL I" VE HAD IN A LONG

【D7】

JOHN: OH ANNE, THAT WAS A WONDERFUL DINNER. THAT" S THE BEST MEAL I" VE HAD IN A LONG TIM

E. ANNE: OH, THANK YOU! THANK YOU VERY MUC

H. JOHN: CAN I GIVE YOU A HAND WITH THE DISHES？ ANNE: UH-UH, DON"T BOTHER.【D5】______HEY, WOULD YOU LIKE ME TO FIX SOME COFFEE？ JOHN: UH, THANKS A LOT. I"D LOVE SOM

E. UH, WOULD YOU MIND IF I SMOKE？ ANNE: WHY, NOT AT ALL HERE, LET ME GET YOU AN ASHTRAY. JOHN: AW, THANKS VERY MUC

H...OH, ANNE, 【D6】______ ANNE: ACTUALLY, I" VE ONLY JUST LEARNED HOW, YOU KNOW. IT" S BECAUSE I" VE BEEN TAKING THESE COURSES. JOHN:WHY, I CAN"T COOK AT ALL, CAN"T EVEN BOIL AN EG

G. ANNE: NO KIDDIN

G.【D7】______YOU COULD TAKE A COUPLE OF CLASSES OVER AT SHERIDAN COLLEGE AND LEARN HOW TO DO IT TOO. JOHN:AW, THANKS A LOT. A. I DIDN" T REALIZE YOU WERE SUCH A GOOD COO

K.

B. I"LL DO THEM MYSELF LATER.

C. WELL, YOU KNOW, IF YOU WANT TO,

D. DO YOU MAKE IT BY YOURSELF？

点击查看答案

第9题

Sunlight is free, but that is no reason to waste it. Yet even the best silicon solar cells

—by far the most【C1】______sort—convert only a quarter of the light that falls on them. Silicon has the【C2】______of being cheap: manufacturing improvements have brought its price to a point where it is snapping at the heels of fossil fuels.【C3】______many scientists would like to replace it【C4】______something fundamentally better. John Rogers, of the University of Illinois, Urbana-Champaign, is one. The cells he has【C5】______can convert 42.5% of sunlight.【C6】______improved, Dr Rogers reckons, their efficiency could rise to 50%. Their【C7】______is that they are actually not one cell, but four, stacked one on top of another. Solar cells are made of semiconductors, and every type of semiconductor has a【C8】______called a band gap that is different from that of other semiconductors. The band gap【C9】______the longest wavelength of light a semiconductor can absorb (it is transparent to longer wavelengths). It also fixes the【C10】______amount of energy that can be【C11】______from shorter wavelength. The result is that long-wavelength photons are lost and short-wave ones incompletely utilised. Dr Rogers【C12】______this by using a different material for each layer of the stack. He chooses his materials【C13】______the bottom of the band gap of the top layer matches the top of the band gap of the one underneath, and so on【C14】______the stack. Each layer thus【C15】______off part of the spectrum, converts it efficiently into electrical energy and passes the rest on. The problem is that the materials needed to make these semiconductors are【C16】______But Dr Rogers has found a way to overcome this.【C17】______solar-cell modules are completely covered by semiconductor, but in his only 0.1% of the surface is so covered. The semiconducting stacks, each half a millimeter square, are【C18】______over that surface many dots. Each stack then has a pair of cheap glass lenses【C19】______over it. These focus the suns light onto the stack, meaning that all【C20】______light meets a semiconductor.

【C1】

A．conventional

B．common

C．peculiar

D．humble

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第10题

【D6】JOHN: OH ANNE, THAT WAS A WONDERFUL DINNER. THAT" S THE BEST MEAL I" VE HAD IN A LONG

【D6】

JOHN: OH ANNE, THAT WAS A WONDERFUL DINNER. THAT" S THE BEST MEAL I" VE HAD IN A LONG TIM

E. ANNE: OH, THANK YOU! THANK YOU VERY MUC

H. JOHN: CAN I GIVE YOU A HAND WITH THE DISHES？ ANNE: UH-UH, DON"T BOTHER.【D5】______HEY, WOULD YOU LIKE ME TO FIX SOME COFFEE？ JOHN: UH, THANKS A LOT. I"D LOVE SOM

E. UH, WOULD YOU MIND IF I SMOKE？ ANNE: WHY, NOT AT ALL HERE, LET ME GET YOU AN ASHTRAY. JOHN: AW, THANKS VERY MUC

H...OH, ANNE, 【D6】______ ANNE: ACTUALLY, I" VE ONLY JUST LEARNED HOW, YOU KNOW. IT" S BECAUSE I" VE BEEN TAKING THESE COURSES. JOHN:WHY, I CAN"T COOK AT ALL, CAN"T EVEN BOIL AN EG

G. ANNE: NO KIDDIN

G.【D7】______YOU COULD TAKE A COUPLE OF CLASSES OVER AT SHERIDAN COLLEGE AND LEARN HOW TO DO IT TOO. JOHN:AW, THANKS A LOT. A. I DIDN" T REALIZE YOU WERE SUCH A GOOD COO

K.

B. I"LL DO THEM MYSELF LATER.

C. WELL, YOU KNOW, IF YOU WANT TO,

D. DO YOU MAKE IT BY YOURSELF？

点击查看答案

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