题目内容
槽在传播过程中，会通过能量频散作用，在下游激发或者加强一个波动，被称之为下游效应。
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微扰动法可将小振幅波的非线性方程线性化，而无法应用于有限振幅波。
滞弹性近似相对于包辛内斯克近似，考虑了大气的可压缩性对密度扰动的贡献和平均方程在连续方程的贡献。
Using the Target Vocabulary in New ContextsComplete the sentences with the target words in the box. Change the form where necessary. Be careful, there are two extra words.startle sophomore insist superior qualify exceptionreassure lean congratulate inspire essential1. I was ______ when my cat jumped on my bed in the middle of the night.2. Even though it was raining hard, he ________ on going for a drive.3. A proper diet is __________ to good health.4. With the ________ of Mark, everyone attended the meeting.5. Mary’s beautiful poem _______ me to try to write a poem of my own.6. My marks in high school were not as high during my __________ year as they were in myfirst year.7. The runner must come in first or second place to __________for the final race.8. The doctor __________ us that my brother would be okay.9. It is wrong to think that men are ________ to women.
CollocationsComplete the sentences with the collocations given in the box below. Change the form when necessary.have one’s eye onadd toqualify forat one's sidetake painsbelieve incalm down1. My parents always __________ to make sure that the house is clean before guests come over.2. After Marco’s exams were finished, he could finally __________.3. It is silly to __________ghosts, because they do not exist.4. During my grandfather’s funeral, my mother was ___________, holding my hand.5. I _______________the jacket in the store window, and plan on buying it as soon as I have enough money.6. Because Kenji finished first, he will _________the final race.7. Beatrice bought another pair of shoes to __________her collection.
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