练一练:指出下例句中主语的中心词
①Theteacherwithtwoofhisstudentsiswalkingintotheclassroom
②Thereisanoldmancominghere
③Theusefuldictionarywasgivenbymymotherlastyear
④Todotoday'shomeworkwithouttheteacher'shelpisverydifficult
练一练:选出句中谓语的中心词
①Idon'tlikethepictureonthewall
don'tB
pictureD
wall②Thedaysgetlongerandlongerwhensummercomes
longerC
summer③Doyouusuallygotoschoolbybus
usuallyC
bus④Therewillbeameetingatthelibrarythisafternoon
willbeB
meetingC
thelibraryD
afternoon⑤Didthetwinshaveporridgefortheirbreakfast
twinsC
breakfast⑥Tomdidn'tdohishomeworkyesterday
didn'tC
hishomework⑦WhatIwanttotellyouisthis
totellC
is⑧Wehadbettersendforadoctor
doctor练一练:挑出下列句中的表语
①Theoldmanwasfeelingverytired
②WhyisheworriedaboutJim
③Theleavesha