题目内容
（请给出正确答案）
A.To explain a new requirement for graduation.
B.To interest students in a community service project.
C.To discuss the problems of elementary school students.
D.To recruit elementary school teachers for a special program.
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更多“A.To explain a new requirement…”相关的问题
根据所听到的内容，回答：
A.To explain a new requirement for graduation．
B.To interest students in a community service project．
C.To discuss the problems of elementary school students．
D.To recruit elementary school teachers for a special program．
What is the author's purpose of writing this passage？
A．To compare different energy sources.
B．To introduce a new concept of zero carbon gasoline.
C．To explain why gasoline is important to us.
D．To discus how to solve the problem of global warming.
Passage Three． 听材料，回答下列各题：
A.To review what students know about volcanic activity.
B.To demonstrate the use of a new measurement device.
C.To explain the answer to an examination question.
D.To provide background for the next reading assignment.
A．To explain the effects of turbidity currents.
B．To explain how winds cause turbidity currents.
C．To remind the student about the next assignment.
D．To remind the student where ocean sediments originate.
A.To explain why recycling is important.
B.To describe the recycling program.
C.To discuss whether or not recycling should be mandatory.
D.To explain how to find the recycling facilities.
A．To help him explain information to his roommate.
B．To help him write a paper.
C．To prepare for a test.
D．To tell her if notes are accurate.
A．To inform. the woman of the topic of his presentation.
B．To explain Sinclair Lewis' writing style. in detail.
C．To describe some famous biologists.
D．To edit a speech for the woman.
A．To indicate how one can get better service.
B．To explain the derivation of the word "tip".
C．To illustrate why difficult customers give bad tips.
D．To put forward reasons for a salary increase.
A．To show her the plans and explain in detail.
B．To demonstrate how to use the products.
C．To know her better before hiring her.
D．To provide better after-sale service.
A．To help him explain the information to his roommate.
B．To help him write a paper.
C．To prepare for a test.
D．To tell her if notes are accurate.
