课时作业（三十四）选择性必修第四册 Unit 3 Sea Exploration-【学易优】2024年高考英语一轮总复习课时分层突破（人教版）

课时作业 课时作业（三十四） 选择性必修第四册 Unit 3 Sea Exploration I.阅读理解 by 3C,it found that multiple changes to the colour A of the oceans would occur.The model projects that (2023·福建省福清市联考)By the end of the currently blue areas with little phytoplankton century,if not sooner,the world's oceans will be could become even bluer.But in some waters,such bluer and greener thanks to a warming climate, as those of the Arctic,a warming will make according to a new study. conditions riper for phytoplankton,and these areas At the heart of the phenomenon lie tiny will turn greener."Not only are the quantities of marine microorganisms(海洋微生物)called phytoplankton in the ocean changing."she said, “but the type of phytoplankton is changing..” phytoplankton.Because of the way light reflects 1.What are the first two paragraphs mainly about? off the organisms,these phytoplankton create A.The various patterns at the ocean surface. colourful patterns at the ocean surface.Ocean B.The cause of the changes in ocean colour. colour varies from green to blue,depending on the C.The way light refleets off marine organisms. type and concentration of phytoplankton.Climate D.The efforts to fuel the growth of phytoplankton. change will fuel the growth of phytoplankton in 2.What does the underlined word "vulnerable"in some areas,while reducing it in other spots, Paragraph 3 probably mean? leading to changes in the ocean's appearance. A.Sensitive. B.Beneficial. Phytoplankton live at the ocean surface,where C.Significant. D.Unnoticeable. they pull carbon dioxide(二氧化碳)into the ocean 3.What can we learn from the passage? while giving off oxygen.When these organisms A.Phytoplankton play a declining role in the marine die,they bury carbon in the deep ocean,an ecosystem. important process that helps to regulate the global B.Dutkiewicz's model aims to project phytoplankton climate.But phytoplankton are vulnerable to the changes. ocean's warming trend.Warming changes key C.Phytoplankton have been used to control characterist