从句修饰或有补足语时，动词不定式短语、介词短语、从句和补足语
等，一般都仍然保留在原来的位置上。例如：Theyarerevisi
gthelawstoprotecttherightsofwome
a
dchildre
→Thelawsarebei
grevisedtoprotecttherightsofwome
a
dchildre
Theyarewriti
gareportaboutthe
egativeeffectsofcellpho
esi
school→Areportisbei
gwritte
aboutthe
egativeeffectsofcellpho
esi
schoolScie
tistsarekeepi
gasickmiludeeraliveatthece
tre→Asickmiludeerisbei
gkeptaliveatthece
trebyscie
tists4如果用在现在进行时的句子中的谓语动词是动词短语或习惯用语，那么这
个动词短语或习语只把动词变为被动语态，其他部分保持不变。例如：Thepare
tsaretaki
ggoodcareoftheirtesttubebaby→Theirtesttubebabyisbei
gtake
goodcareofbythepare
ts5当用了现在进行时的句子结构是