Useful structuresAgreement 所谓主谓一致是指主语和谓语动词之间,即主语的人称和单复数形式决定着谓语动词对应的形式。The boy _ diving.They _ diving.Both Jack and Tim _ diving.All of them _ diving.Neither Jack nor Tim _ walking.isareareisareFinish the following exercises:Bob Bob _ a worker.isMike Mike and Bob _ workers. areBoth Mike and Bob _workers.areNeither Mike nor Bob _a teacher.isBill Neither of them _ (know) how to teach English. knows/knowAll of them _ workers.None of them _ (know) how to teach English.are knows/know主谓一致主要有以下几种情况:1. a