1.Private cars have made the traffic problems _______.
A.the worse than before
B.worse than ever before
C.more bad as before
D.more bad than it was
2.When drinking from a well, one mustn't forget ________ who dug it.
A.this
B.these
C.that
D.those
3.Although the United States has long been known as a nation of immigrants， ________ discrimination still exists.
A.radical
B.racial
C.crucial
D.diplomatic
4.There ______ some mistakes in your composition.
A.have
B.has
C.seems to be
D.seem to be
5.A man who wants to start a business must have some _______.
A.currency
B.income
C.wealth
D.capital
及解析
1. 【翻译】私人轿车（的增多）使交通问题比以前更加严重了。
［考点］比较级
【精析】B 在比较状语从句中，比较级常和than搭配使用；bad的比较级形式为worse，且比较级前一般不加the。
2. 【翻译】吃水不忘挖井人。
［考点］词义辨析
【精析】D 选项中的四个词均为指示代词，this和these指较近的人或物，that和those指较远的人或物。this和that指代单数名词或不可数名词，these和those指代复数名词。由定语从句who dug it可知，先行词只能用表示复数意义的指代较远的人的those。
3. 【翻译】尽管很久以来美国以移民著称，但是种族歧视仍然存在。
［考点］词义辨析
【精析】B radical：激进的；racial：种族的；crucial：至关重要的；diplomatic：外交的。根据句意可知，选B。
4. 【翻译】你的作文里似乎有一些错误。
［考点］主谓一致
【精析】D“There+动词+to be+主语+…”是there be结构的变体，能用于这种句型的动词有：seem, appear, begin, come, continue, happen, start等。而且在there be结构中，be动词的单复数形式与紧跟其后的主语相一致，所以由主语some mistakes可知，选项D为正确。
5. 【翻译】想创业的人必须先有一些资金。
［考点］词义辨析
【精析】D currency：通货，货币；income：收入；wealth：财产，财富；capital：资本，资金。根据句意可知，选D。
