What is true of microwaves?
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1 .What trouble did Minteer and Klotzhach have in their research?
A They had trouble keeping enzymes in fuel cells active. B They had trouble keeping biological cells active. C They had trouble producing fresh enzymes. D They had trouble finding mechanism for producing enzymes.
2 .According to Paragraph 5, electrons are released_____.
A when bags of enzyme are embedded in the new fuel cell. B when glucose from a sugary liquid goes through the enzyme. C when the enzyme oxidizes the glucose from a sugary liquid that goes through a pocket. D when the enzyme oxidizes the sugary liquid that goes through a pocket.
3 .What is exciting about the new fuel cells?
A Their limitless power generation capacity is amazing. B Their limited power generation capacity is a good beginning. C Their limited power generation capacity is the result of great efforts. D Their limitless power generation capacity is a major accomplishment,
4 .According to the last paragraph, what is NOT true of the new fuel cells?
A The new fuel cells run on sugar that is easy to find. B The new fuel cells are environment friendly. C The new fuel cells are biologically degradable, D It will take some time before the new fuel cells can be used in popular products.
5 .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
7 .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.
8 .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.
9 .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
10 .Which of the following uses of nanotechnology is NOT mentioned in the passage?
A To make beauty products and dirt-resistant clothing. B To produce better and lighter building materials. C To help more accurately diagnose diseases. D To help more effectively treat diseases.
