5、omponentsofasentence.ItcanhelpyoutounderstandspokenEnglish,evenrapidspokenEnglish.SentencestressNounMainverbAdjectiveAdverbsNumerals(数词)Demonstrativepronouns(指示代词)NormallystressedinanEnglishsentence:Anelephantisananimal.Hershirtisblueandwhite.John isnine.Mysecondbrother is
6、 a doctor.Marylovesher dolls.speaks Englishslowlyandcarefully.ExamplesArticles(冠词)Personpronouns(人称代词)Auxiliaryverbs(助动词)Prepositions(介词)Conjunctions(连词)UsuallynotstressedTogivespecialemphasistoasentencethatisusuallyunstressedcanbestressed.语句重音并不是一成不变的语音现象,根据说话时的不同心态、不同的着重
7、点、不同的强调内容、不同的语气等可以使原来在句中应重读的词失去重音,而原来不重读的词却又成了重读的词。We'heard'Mary 'singing ˋupstairs.(plain statement of fact)We "heardMary singing upstairs.(But we didn't see her.)We heard "Marysinging upstairs.(But we didn't hear John.)We heard Mary"singingupstairs.(But we didn't hear Ma
8、ry talking.)We heard Mary singing"upstairs.(But we didn't hear Mary singing downstairs.)"