英语15选10练习题

（一）A Nepali teenager has designed a £23 solar panel using human hair.

Milan Karki, who is 18 years old and lives in a village in rural Nepal, used human hair to replace silicon, which is a common but ( 1) component of solar panels.

By using hair as a ( 2) , Karki said that solar panels can be produced for around £23, a price tag that could be (3) if they were mass-produced.

The solar panel works because melanin, the pigment (色素) that gives hair its color, is light (4) and can act as an electrical conductor. Karki was inspired to follow this 5 by a Stephen Hawking book, which ( 6) how to create static energy from hair.

The device that Karki has (7 ) is capable of producing 9V or 18W of energy----plenty to ( 8 ) a mobile phone.

“Half a kilo of hair can be bought for only 16p in Nepal and whereas a pack of batteries would cost 50p and last a few nights,” according to The Daily Mail.

Milan and his four classmates ( 9) made the solar panel as an experiment but the teens are ( 10) it has wide applicability and commercial viability.

Karki has now sent out several devices to other districts near his home for testing. He said, “First I wanted to provide elec tricity for my home, then my village. Now I am thinking for the whole world.”

A)route B) charge C) important D) expensive

E) declined F) replacement G) explained H) sensitive

I) convinced J) initially K) demonstrated L) simply

M) produced N) halved O) sensible

D F N H A G K B J I

(二)

Women’s Day marks the role of women in both the past and the present. It was started to 1 the importance of working women and bring their problems to 2 . However, 3 the day is not a one-day agenda. The real challenge lies in the natural flow of feelings----honoring and celebrating womanhood on a particular March 8 only to forget its importance the next day is 4 . In countries like South Africa, the people celebrate the national Women’s day on August 9 every year with a variety of eve nts. Women’s Day on August 9 marks the day, in 1956, when 20,000 women 5 on the Union Buildings in Pretoria to protest against one of the cornerstones of apartheid (种族隔离) -----the passed laws. The countries will nowadays celebrate the month of August, by a ceremony 6 women in politics and decision-making positions, and 7 them certificates of honor. International Women’s Day was commemorated in the United States during the 1910s and 1920s, but then 8 . It was revived during the women’s movemen t in the 1960s, but without its socialist associations. In 1981, the U. S. Congress passed a 9 establishing National Women’s History Week. Since its founding, the National Women’s History Project has recognized and celebrated the rich and 10 contributions of women to the history and culture of the United States.

declined B) celebrating C) paraded D) awarding

E) light F) resolution G) marched H) increasingly

I) essentially J) highlight K) disrespectful L) diminished

M) varied N) promoting O) determination

J E I K G N D A F M

（三）

Personality is to a large extent inherent----A type parents usually bring about A type 1 . But the environment must also have a profound effect, since if competition is important to the parents, it is likely to become a major factor in the lives of their children. One place where children soak up A characteristics is school, which is, by its very 2 , a highly competitive institution. Too many schools adopt the win at all costs moral standard and measure their success by sporting achievements. The 3 passion for making children compete against their classmates or against the clock produces a two-layer system, in which competitive A