2.The center of gravity of the human body _d_____ behind his joint.a.located b.locating c.to locate d.is located 【我选B】3.“Today is very cold,isn’t it?” “Yes,the river is ___C__ over.” a.freezed b.freeze c.frozen d.freezing 【我选D

2.The center of gravity of the human body _d_____ behind his joint.a.located b.locating c.to locate d.is located 【我选B】3.“Today is very cold,isn’t it?” “Yes,the river is ___C__ over.” a.freezed b.freeze c.frozen d.freezing 【我选D
2.The center of gravity of the human body _d_____ behind his joint.
a.located b.locating c.to locate d.is located 【我选B】
3.“Today is very cold,isn’t it?” “Yes,the river is ___C__ over.”
a.freezed b.freeze c.frozen d.freezing 【我选D,水结冰是被动?水被结冰?】
8.Tom _____D_ mathematics throughout his college life.
a.bored b.bored with c.was bored d.was bored with 【这个是固定短语么】
9.___A___ that dress when I first saw you at the station?
a.Were you wearing b.Have you worn
c.Did you wear d.Do you wear 【我选C = =】
12.My English teacher __A____ my test.
a.has not yet graded b.has not yet been graded
c.is not yet to be graded d.is not yet graded 【我选D】
16.“____B__ your best?It’s not satisfactory.I’m afraid you will have to do it again.”
a.Do you try b.Have you tried c.Are you trying d.Have you been trying
【我选A,选B能理解,可是为什么不能是A?】
18.My uncle,Sam,_____C_ manager of the firm.
a.has just made b.is just being made
c.has just been made d.is just made
【不懂.】
23.We have sometimes accidents on this line,but no accidents __B____ since last winter.
a.occur b.have occurred
c.have been occurring d.are occurring
【我选A,】

2.The center of gravity of the human body _d_____ behind his joint.a.located b.locating c.to locate d.is located 【我选B】3.“Today is very cold,isn’t it?” “Yes,the river is ___C__ over.” a.freezed b.freeze c.frozen d.freezing 【我选D
2 句子里没动词啊,is当动词.
3 对的.原句意为河水结冰,用被动表示.
8 be bored with sth 对什么厌倦.
9 这句话里,若选C,句式就不对了,要改为Did you wear the dress which you wore when I first saw you at the station?A意为你在上次我看见你在火车站事穿着那条裙子吗?比较合适.
12 hasn't done还没做完某事.isn't done 还没被做,这里用主动形式.
16 事情过去了,应该用Did you try your best,但还是没B好
18 我叔叔是被选举成管理者的,所以用被动语态,只有BC合适,B表意错误,所以选C
23 记住,有since,一般都要更上完成时态因为since表示从.以来,是完成时态的标志词语.
累死了,求加分~!

好难...

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