What is NOT true of the invisibility device?
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1 .What does the writer say about tap water? Which of the following is NOT correct?
A Tap water reflects the concentrations of hydrogen and oxygen isotopes in different regions. B Tap water is a kind of soft drink in the United States. C Tap water contains unique proportions of isotopes of hydrogen and oxygen. D Tap water is used t cook food.
2 .James R. Ehleringer tried to find out ______.
A if our bodies break water down into its parts. B if it is possible to collect hair samples across the country. C if tap water contains unique proportions of isotopes of hydrogen and oxygen. D if the composition of hair can indicate exactly where people are from
3 .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.
4 .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
5 .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.
7 .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.
8 .Harry Potter's invisibility cloak doesn't have any real competition yet, because
A scientists have not found out how his cloak works B the cloaking device is a total failure C the cloaking device works only for microwaves. D the cloaking device works only for visible light.
9 .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.
10 .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.
