Module 5 Changes（单元测试）教科版（广州）英语六年级上册

六年级第五单元练习 Changes 一、选择题。 1. The process of turning from a caterpillar into a butterfly is called __________. a) metamorphosis b) migration c) hibernation d) adaptation 2. Which of the following is an example of a physical change? a) Melting ice cream b) Learning a new skill c) Changing your mind d) Making a friend 3. What is the main factor that causes seasons on Earth? a) The distance from the sun b) The rotation of the moon c) The tilt of Earth's axis d) The number of clouds in the sky 4. During photosynthesis, plants convert __________ into oxygen. a) carbon dioxide b) nitrogen c) oxygen d) water vapor 5. Which of the following is a human-made change to the environment? a) Rainfall b) Volcanic eruption c) Deforestation d) Earthquake 6. The changing of a liquid into a gas is called __________. a) condensation b) evaporation c) precipitation d) freezing 7. What causes the tides in the ocean? a) The wind b) The moon's gravitational pull c) Earth's rotation d) The sun's heat 8. The process of breaking down rocks into smaller particles is known as __________. a) erosion b) sedimentation c) solidification d) condensation 9. Which of the following is an example of a reversible change? a) Baking a cake b) Burning a paper c) Melting an ice cube d) Mixing salt in water 10. What is the source of energy for the water cycle? a) The sun b) The moon c) The wind d) The stars 二、选出单词不同类的一项。 ( ). a) caterpillar b) butterfly c) ladybug d) spider ( ). a) solid b) liquid c) gas d) freeze ( ). a) spring b) autumn c) summer d) tree ( ). a) oxygen b) nitrogen c) carbon dioxide d) photosynthesis ( ). a) earthquake b) tornado c) deforestation d) hurricane ( ). a) evaporation b) condensation c) precipitation d) freezing ( ). a) wind b) moon c) sun d) cloud ( ). a) erosion