[单项选择]Dozens of scientific groups all over the world have been（）the goal of a practical and economic way to use sunlight to split water molecules.
A. pursuing
B. chasing
C. reaching
D. winning

[单项选择]Dozens of scientific groups all over the world have been ______ the goal of a practical and economic way to use sunlight to split water molecules.
A. pursuing
B. chasing
C. reaching
D. winning

[单项选择]Dozens of scientific groups ail over the world have been ______ the goal of a practical and economic way to use sunlight to split water molecules.
A. pursuing
B. chasing
C. reaching
D. winning

[单项选择]Tunas migrate long distances over all the world’s oceans and occupy tropical, temperate, and even some the cooler waters.

[单项选择]The advertising industry in today's world does have its share of responsibilities in leading people to misconceptions.（）
A. for leading people to
B. to lead people to
C. to lead people into
D. for leading people into

[单项选择]Today dozens of scientific group in different countries have been _______ the goal of a practical and economic way to use sunlight to split water molecules.


A. reaching
B. winning
C. chasing
D. pursuing

[单项选择]

Passage Four
On television all over the world there are programmes about the work of the police. They are popular because they are usually very exciting. In London there is a television programme called "Police Five" because it is on for five minutes once a week. A television reporter, Shaw Taylor, talks about crimes in the London area. He asks for public help. The police station needs the help of ordinary people because sometimes you or I have information that can be useful to the police.
Shaw Taylor shows pictures of paintings, jewellery (珠宝) and other things which thieves stole during the week. Sometimes he shows the car that the thieves escaped in. When people see men or
things on the television programme which they may remember, they can tell the police where they saw them. With their help the police may catch more criminals.
Sometimes the police find a car or some money. Shaw Taylor shows them on television. The owners someti
A. a popular TV reporter
B. a TV reporter few people know
C. a TV reporter ordinary people don't like
D. an unknown TV reporter

[单项选择]Children all over the world start putting words together at ________ the same age, and follow very similar paths in their speech.


A. approximately
B. merely
C. scarcely
D. appropriately

[单项选择]Researchers all over the world have been seeking for determining how early infancy conceptual thinking is possible.


A. have been seeking about determining
B. have been seeking to determine about
C. have been seeking to determine
D. have sought to determine

[单项选择]Kids all over the world wear the things related to Jordan except ______.（　）
A. shoes
B. jerseys
C. jackets
D. socks

[单项选择](Just as) children the world over (like) Christmas morning, (adults so like) Christmas evening when (peace and calm) return to the household.
A. Just as
B. like
C. adults so like
D. peace and calm

[单项选择]Italian ice cream is imitated all over the world.（　）
A. copied
B. ignored
C. organized
D. provided

[单项选择]People all over the world can enjoy Chaplin's films without translation because ______.


A. English is widely known in the world
B. they can enjoy the films silently
C. they are mostly comedies
D. most of them are silent