1.The current political ______ of our country is favorable for foreign investments.

　　A.climate B. weather C.temperature D. state

　　Best Answer:A

　　詳解：應(yīng)選A項(xiàng)。climate(可數(shù)名詞)意為“(一個(gè)地區(qū)或一個(gè)時(shí)期總的)氣候”;weather意為“(指每日每時(shí)的晴陰，溫度)天氣”;state意為“狀況，狀態(tài)”。

　　2.The angry teacher gave the order that nobody ______ the classroom before twelve.

　　A.would leave B. left C.had left D. leave

　　Best Answer:D

　　詳解：應(yīng)選D項(xiàng)。that引導(dǎo)order(命令)的同位語從句，從句用(should)do表示虛擬語氣。

　　3._____ the financial means to remain independent, Thomas Edison was compelled to seek employment as a night telegraph operator.

　　A.He was deprived of B. Deprived of C.That he was deprived of D. Although he was deprived of

　　Best Answer:B

　　詳解：應(yīng)選B項(xiàng)。過去分詞表原因作狀語，句意為：失去了保持獨(dú)立經(jīng)濟(jì)來源，愛迪生不得不當(dāng)夜間電報(bào)員。

　　4.The firm will have to step ______ production if it is to defeat its competitors.

　　A.off B. in C.out D. up

　　Best Answer:D

　　詳解：應(yīng)選D項(xiàng)。step up意為“提高，加快”;step off意為“開步走，步量(距離)”;step in意為“介入，干涉;參加進(jìn)來(幫忙)”;step out意為“走出去”。

　　5.After writing poetry unsuccessfully for several years, he was not certain whether to quit or ______ with his art.

　　A.if he should continue B. he should continue C.to be continued D. to continue

　　Best Answer:D

　　詳解：應(yīng)選D項(xiàng)。to continue與to quit并列。