[单项选择]Although customers keep complaining about their poor service, they've made no ______ to make any improvement.

[单项选择]Although I spoke to her about the matter several times, she took little ______ of what I said.

[单项选择]Although I can walk about, there is still a ______ pain in my leg.
A. weak
B. slight
C. tender
D. soft

[单项选择]PO2电极属于（）
A. 离子选择电极
B. 金属电极
C. 氧化还原电极
D. 离子交换电极
E. 玻璃电极

[单项选择]Although there are several variations on the exact format that worksheets can take, they are all similar in their ______ aspects.
A. potential
B. social
C. essential
D. partial

[单项选择]Although complete paralysis is rare with neuritis, some degree of muscle weakness common.

[单项选择]Although heroes may come from different cultures, they ______.


A. generally process certain inspiring characteristics
B. probably share some weaknesses of ordinary people
C. are often influenced by previous generations
D. all unknowingly attract a large number of fans

[单项选择]Although architecture has artistic qualities, it must also satisfy a number of important practical


A. regulations
B. obligations
C. considerations
D. observations

[单项选择]Although the Reebok Company has solved the problem of fulfilling its orders, it ______.


A. does not want to further expand its retailing network
B. still limits the number of shoes supplied to stores
C. is still particular about who sells its products
D. still carefully chooses the manufacturers of its products

[单项选择]Although he suffered from discrimination, Martin Luther King is a man who believed in reconciliation and only rarely______a grudge during his Civil Rights movement
A. he carried
B. did he carry
C. when he carried
D. that he carried

[单项选择]Although the fuel consumption is greater in the northern hemisphere, temperatures there seem to be falling. This is ______.

[单项选择]Although, some students graduate from high school, they are virtually illiterate______ writing a business letter.


A. in the event of
B. in the light of
C. in case of
D. in terms of

[单项选择]Although our health is improving in many ways and we are living longer than in previous decade, new diseases and conditions threaten the quality of our lives（）
A. 虽然我们通过各种方式来增强我们的健康，我们的寿命也比前十年多了，但新的疾病和情形依然在威胁着我们的生命。
B. 尽管有很多方式在改进我们的健康状况，我们的寿命也比前十年延长了，但还有新的疾病和情形威胁着我们的生命。
C. 尽管我们的健康在通过多种方式得以改进，我们的寿命也比十年前延长了，但还有新的疾病和情形在威胁我们的生命。
D. 尽管改进我们健康的方式有很多，我们的寿命也比以前延长了很多，但我们的生活还会受到新疾病和新情形的惊吓。

[单项选择]The author thinks that although rich and famous people are often said to be cleverer than they really are _____.


A. Elizabeth almost certainly did not deserve this praise.
B. there is other evidence that Elizabeth was extremely clever.
C. Elizabeth was not well-known for her hand-writing.
D. there is other evidence that Elizabeth was famous and cynical.

[单项选择]Although women cluster to him like moths around a flame, he is none ______ happier for it.
A. but
B. the
C. much
D. any

[单项选择]The basic causes are unknown, although certain conditions that may lead to cancer have been_________


A. notified
B. qualified
C. identified
D. satisfied

[单项选择]

Passage Five
Although no one is certain why migration occurs, there are several theories. One theory is based upon the premise that prehistoric birds of the northen Hemisphere were forced south during the Ice Age, when glaciers covered large parts of Europe, Asia, and North America. As the glaciers melted, the birds came back to their homelands, spent the summer, and then went south again as the ice advanced in winter. In time, the migration became a habit, and now, although the glaciers have disappeared, the habit continues.
Another theory proposes that the ancestral home of all modern birds was the tropics. When the region became overpopulated, many species were crowded north. During the summer, there was plenty of food, but during the winter, scarcity forced them to return to the tropics.
A more recent theory, known as photoperiodism, suggests a relationship between increasing daylight and the stimulation of certain glands in the birds’ bod
A. To test the relationship between daylight and a disease of the glands common to birds.
B. To test the relationship between daylight and migration.
C. To test the relationship between migration and temperature.
D. To test the relationship between daylight and changes in the season.