1. Paper ____________ first ____________ about two thousand years ago in China by Cai Lun.
A. is; inventing B. is; invented
C. has; invented D. was; invented
2. — The passenger refused to move after taking another one’s seat!
—What a shame! He ____________ according to the new credit system(誠信體系).
A. punish B. punished
C. will punish D. will be punished
3. — I enjoy walking on the clean streets in the morning.
— You know they ____________ by the hard-working cleaners every day.
A. clean B. are cleaned
C. are cleaning D. will clean
1. D【解析】句意:在中國大約兩千年前,紙最開始被蔡倫發(fā)明。本題考查時態(tài)語態(tài)。A.現(xiàn)在進行時;B.一般現(xiàn)在時的被動語態(tài);C.現(xiàn)在完成時;D.一般過去時的被動語態(tài)。主語paper與謂語invent之間為被動be done,排除A和C;且根據(jù)two thousand years ago可知,用一般過去時的被動語態(tài),故選D。
2. D【解析】句意:——乘客坐了另一個乘客的座位后拒絕調(diào)動! ——他的行為太羞恥了!根據(jù)新的信用規(guī)則,他將受到懲罰。A為動詞原形;B為過去式;C為一般將來時;D. 為一般將來時的被動語態(tài)。結(jié)合語境可知,主語He和punish之間存在著被動關(guān)系,因此應(yīng)該用被動語態(tài);再者,乘客坐了另一個乘客的座位后拒絕調(diào)動!該乘客是將要接受懲罰的,因此時態(tài)為一般將來時,綜合分析可知,本題應(yīng)該用一般將來時的被動語態(tài)。故選D。
3. B【解析】句意:——我喜歡早上在干凈的街道上散步。——你知道它們每天都被勤奮的清潔工打掃?疾橐话悻F(xiàn)在時的被動語態(tài)。A. clean打掃,動詞原形;B. are cleaned一般現(xiàn)在時的被動語態(tài);C. are cleaning現(xiàn)在進行時態(tài);D. will clean一般將來時態(tài)。根據(jù)You know they _ by the hard-working cleaners every day.可知本句為主從復(fù)合句,從句的主語they和謂語動詞clean之間存在邏輯上的被動關(guān)系,所以應(yīng)用被動語態(tài);由every day可知句子時態(tài)用一般現(xiàn)在時,一般現(xiàn)在時的被動語態(tài)構(gòu)成為am/is/are+動詞的過去分詞,主語是they,be動詞用are,clean的過去分詞是cleaned;故答案選B。