高一英语unit one-unit two,单项选择,要解析
高一英语unit one-unit two,单项选择,要解析
17.As a result of destroying the forests,a large( )of desert ( )covered the land.
A.number,has B.quantity,has Cnumber,have Dquantity,have
18.They had a pleasant chat ( )a cup of coffee
A.for B.with C.during D.over
19.Some students often listen to music ( )classes to refresh themsleves
A.between B.among C.over D.during
20.—What are you mailing,Ryan?—A textbook（ ）a new method of teaching physics.I want my friends to take a lood at it .
A.is based on B.based on C.basing Dwhich based upon
21.China is ___ the weat of Japan but it is lies ___the east of Aisa
A.in,to B.to,from C.in,on D.to,in
17.B
此处desert应该是不可数名词,所以用quantity(它可修饰可数名词和不可数名词),而不用number(它只能修饰可数名词)；当然动词也用单数形式.
18.D
over介词“一边,与...同时”
翻译：他们喝咖啡的同时进行了一次愉快的聊天.
19.A 用between表示两节课的课间休息时间.
20.B 用过去分词短语做后置定语修饰a textbook.
关键在于这个答语只能是个名词短语,而不能是句子,因为只有名词（短语）才能回答上句的what.
21.D
用in表示前后在后者范围之内；用to表示前者在后者范围之外而且不接壤；用on表示前者在后者范围之外但是两者接壤.