6.Be guard against various sham theories. Don't be fooled by them.
"要警惕各种假理论,不要上它们当/不要为它们所骗。"
7.He is only shamming.
他只是假装罢了。
8.A glimpse at the vice-regal residence reveals a certain Byronic romanticism.It is battlemented, with sham turrets, massive chimney-stacks, and a good deal of carved stone.