些学生和一位老师。
fThereisateachera
dsomestude
tsi
theclassroom在教室里有一位老师和一些学生。在therebe引起的句子结构中，用来修饰主语的不定式主动形式和被动形式均可。Thereis
otimetolosetobelost时间紧迫。Thereis
othi
gtoseetobesee
看不见有什么。Thereis
othi
gtodotobedo
e无事可做。Thereis
odoi
g（口语）不可能……Thereis
otelli
gwhe
hewillbeback无法知道他什么时候回来。Thereis
ok
owi
gwhatheisdoi
g无法知道他在做什么。3巩固训练IFilli
thebla
kwithaproperprepositio
i
thebox用方框里恰当的介词填空ofo
i
withforlike1Wewillhaveasportsmeeti
g____________Su
day2Ithi
kIwillbei
ahighschool____________fouryears3Mysisteris____________collegewhilemybrotherisatwork4Hu
dreds____________peoplediedi
theflood5Tomfelli
love____________Maryatthefirstsight6Wherewillyougo____________yoursummervacatio
7Ithi
kIca
travelbyspaceship____________thefuture8Ki
ds____________robotswillbeo
showi
themuseum9Ma
ypopularsi
gerswereo
TVlast
ight____________exampleLiYuchu
10Thebra
chesofthetreelook____________huma
’sarms参考答案：1o
2i
3i
4of5with6o
7i
8of9for10like
fr