有幾道題不大明白 希望能夠解釋分析下選擇的理由..

題目：

有幾道題不大明白 希望能夠解釋分析下選擇的理由..
1.A man of less courage____to stand up to such a complicated situation.
A.would not have dared B.could not have dared
C.will not dare D.did not dare
A..
怎麼分辨這個就是虛擬了.
2.Computers are already widely used in industry and in universities and the time may come when it____possible for ordinary people to use them as well.
A.is B will be
正確答案B...
爲什麼不是A..不是主將從現嗎 不是很明白..
3.There are several possible explanations for the greater job stability in JAPAN______ the great job mobility in the United States.
A.contrary to B.in contrast to
正確答案是B..爲什麼..
這兩個詞用法我沒搞清..
4.Whether to go to college is optional ___that no studeng is required to do so as he is required by law in most states of America to go to high school.
A in a sense B in the sense
這題應該選「從某種意義上說」咯 那是A 還是B
5.Though she could hardly make ends meet herself ,she managed to save_____she could out of her slim salary to help her brother to go to school.
A how little money B such little money C so little money
D what little money
這題選D 不太明白原因 ...
有點多,..

解答：

第一題僅僅通過such來判斷是已經發生過的事情有些草率,因爲可能有上下文,前文提到某種situation.判斷虛擬的依據是less.這是語義蘊含的意思,稍微琢磨一下就能明白.這句話的意思是「勇氣稍稍不夠的人都做不到……」,這是對某個事件的評價.潛在的事件是現在有一位「很有勇氣」的哥們「做了什麼」.不知道這樣說樓主是否明白.
第二題你說的主將從現指的是從句爲時間狀語吧.這裡when引導的是定語從句哦.
第三題樓上已經給了答案了,contary to是動詞詞組呢.
第四題明顯是特指啦,後面整個句子都是在解釋「optional」的含義.所以應該選in the sense.
第五題little money是一個表示強調的插入語成分,把它先刪掉題目就好選了,she managed to save what she could...