History of the Toothbrush and Making Inferences
  • 1. Toothbrush Article: Which statement best explains the author's view of early forms of the toothbrush?
A) They weren't very hygienic.
B) They helped keep teeth clean.
C) They cost little to make.
D) They were extremely innovative.
  • 2. Toothbrush Article: Based on the passage, what is the meaning of the word bristle?
A) a part of a hog
B) the stem of a toothbrush
C) an animal hair used to make a brush
D) a special toothbrush
  • 3. Toothbrush Article: The nylon toothbrush gained popularity before World War II.
A) true
B) false
  • 4. Toothbrush Article: Why were early toothbrushes most likely called "chew sticks"?
A) because people chewed them after using them
B) because they were chewed on by animals
C) because they tasted better when chewed
D) because people chewed on them to help clean the teeth
  • 5. Toothbrush Article: What can you infer about the nylon toothbrush?
A) It originally used animal hairs.
B) It was vry popular when it was invented.
C) It worked better than any toothbrush before it.
D) It was cheaper than previous toothbrushes.
  • 6. Making Inferences Article: What will the researchers most likely do with their invention next?
A) Manufacture it in factories.
B) Sew it into specific brands of clothing.
C) Test it on mosquitoes.
D) Give it away to a variety of stores.
  • 7. Making Inferences Article: "Mosquito repellents have been on the market for years, of course." Why does the author most likely include the words "of course"?
A) To indicate most people probably knew this fact already.
B) To emphasize the importance of repellants.
C) To highlight the need for an improved product.
D) To show readers why mosquitoes are annoying.
  • 8. Making Inferences Article: What does the author assume the reader already knows in this text.
A) The ingredients in standard bug repellants
B) the type of chemical used in the patch
C) the reason why mosquitoes bite people
D) the way the patch has been tested with the public
  • 9. Making Inferences Article: What choice would be a logical title for this article?
A) Avoid Chemicals in Common Repellants
B) A Safe Solution to Pesky Mosquitoes
C) Mosquitoes are Pesky
D) Carbon Dioxide: Perfume of the Mosquito
  • 10. Making Inferences Article: Carbon dioxide is the first thing that attracts a mosquito to you. Your body heat is the second.
A) true
B) false
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