Harry Potter's invisibility cloak doesn't have any real competition yet, because
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1 .What does the last paragraph tell you?
A The new technique can tell precisely where a person lives. B water supplied in different regions all come from the same source. C Types of water used in different regions provide useful information for the police. D Hair samples provide the most important clues to identify crimes.
2 .Harry Potter is mentioned in the passage, because scientists
A can now make an invisible cloak of the same kind as he uses B try to make an invisible cloak of the same kind as he uses C try to invent a device similar in idea to the invisible cloak he uses. D know that it is possible to make an invisible cloak of the same kind
3 .What is true of microwaves?
A Their wavelengths are shorter than those of visible light B Their wavelengths are longer than those of visible light. C They are different from visible light as they are a kind of radiant energy D They are visible to the human eye.
4 .What is NOT true of the invisibility device?
A It is made of a special material with unusual ability B Microwaves bounce off it when they strike it. C Microwaves pass through it when they strike it D It bends the microwaves all the way around until they reach the opposite side.
5 .What does the word "coaster" mean in the passage?
A A disk or plate placed under a drinking glass to protect a table top. B A vessel engaged in coastal trade. C A roller coaster D A resident of a coastal area.
7 .Americans, when in the United States, see themselves as _____.
A representatives of their country. B people different from person to person. C individuals much the same as foreigners. D individuals that share the same values and way of life.
8 .Americans may think that “American culture” _____.
A does not really exist. B is better than other cultures. C is different from other cultures D is highly valued around the world.
9 .Individual Americans may think that their values_____.
A are based on their personal choices. B are forced on them by the society in which they were born. C can also be found in other cultures. D should be recognized the world over.
10 .Americans are disturbed by generalizations others make about them because_____.
A different Americans have different sources of origin. B not all Americans were born and raised in the U.S. C American culture has not been thoroughly studied. D they, as individuals, do not have the same ideas and ways of doing things.
