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 cost little to make.
B) They helped keep teeth clean.
C) They were extremely innovative.
D) They weren't very hygienic.

2. Toothbrush Article: Based on the passage, what is the meaning of the word bristle?

A) a part of a hog
B) an animal hair used to make a brush
C) the stem of a toothbrush
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 they tasted better when chewed
B) because people chewed on them to help clean the teeth
C) because they were chewed on by animals
D) because people chewed them after using them

5. Toothbrush Article: What can you infer about the nylon toothbrush?

A) It originally used animal hairs.
B) It worked better than any toothbrush before it.
C) It was vry popular when it was invented.
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) Test it on mosquitoes.
C) Give it away to a variety of stores.
D) Sew it into specific brands of clothing.

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 highlight the need for an improved product.
B) To indicate most people probably knew this fact already.
C) To show readers why mosquitoes are annoying.
D) To emphasize the importance of repellants.

8. Making Inferences Article: What does the author assume the reader already knows in this text.

A) the type of chemical used in the patch
B) The ingredients in standard bug repellants
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) Carbon Dioxide: Perfume of the Mosquito
B) Mosquitoes are Pesky
C) Avoid Chemicals in Common Repellants
D) A Safe Solution to Pesky Mosquitoes

10. Making Inferences Article: Carbon dioxide is the first thing that attracts a mosquito to you. Your body heat is the second.

A) false
B) true

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