單選題
1.【填句補文】Mexico's current lack of funds is also partly due to oil. The country has rich oil fields and a few years ago, when oil was expensive, Mexico was selling large quantities of oil to the USA and earning a lot of money. ________. However, the price of oil then dropped, and Mexico has been left owing enormous sums of money and with not enough income from oil sales to pay back the loans.
those ruins are in danger of being seriously damaged by pollution.
ntists estimate that about one millimeter of stone is worn away every twelve years.
others the painted surfaces inside temples are lifting and flaking off and the stone is being eaten away.
government was therefore able to borrow huge sums of money from banks around the world, thinking they would have no problem repaying their debts.
正確答案：
D
答案解析：
前文中說到，墨西哥把大量的石油賣給美國並獲得很多的資金，therefore 引出了答案：墨西哥獲得了大量的貸款。
單選題
2.【填句補文】More and more Americans are living alone. Some live alone because of divorce or the death of a partner. ________. According to a recent U.S. census (人口普查), 25 percent of all households in the U.S. are made up of just one person.
seems that many grown-ups today are realizing that childhood dream.
says, “I like being by myself.”
ver, even more people are living alone because they have chosen to.
e’s more pressure to get married nowadays.
正確答案：
C
答案解析：
前句中是在對美國獨身人中的具體情況進行介紹，而且提到了一些美國人獨身leave alone的原因，這是一個線索詞，判斷C是答案，C中提到了更大多數美國人獨身的原因。
單選題
3.【填句補文】The weather of the Caribbean Sea is almost always warm and y beaches line the coasts of many islands. ________. Many tourists arrive on cruise ships.
are Cuba，Puerto Rico，Jamaica，and Hispaniola.
Caribbean Islands are known by several names.
of these islands are no more than tiny slivers(小片)of exposed coral.
is why millions of tourists visit the islands each year.
正確答案：
D
答案解析：
最後一段講到加勒比海的.天氣溫暖，陽光充裕，許多島嶼的海岸有沙灘。這樣的自然環境顯然會吸引旅遊者。因此D是正確的選擇。這裡也可以根據關鍵詞tourists來解題。
單選題
4.【填句補文】Five-year-old Lani still takes seven medicines with her breakfast every morning. "She’s very good about it," says her father David. Lani is alive today because of her father David, in more than one way; when she was one year old she received part of her father’s liver in a liver—transplant operation. Lani was born with a liver illness. ________. Doctors advised that a transplant was the only way in which she would live.
had one operation when she was six weeks old, which was not successful.
d quickly recovered from the operation.
d was finally able to ride his bike again after about a year.
ors hope that she will continue to get stronger and stronger.
正確答案：
A
答案解析：
文章說Lani出生時就有肝功能缺陷，她六週大的時候做過一次手術，但是沒有成功，所以後邊醫生才會建議說她能活下來的唯一方法就是做移植手術。
單選題
5.【填句補文】Some 20，000 tons of antibiotics are used in the European Union and the US each year. More than half are give to farm-animals to prevent disease and promote growth. ________.
warning comes from a researcher in Switzerland who looked at levels of the drugs in farm slurry.
drugs could be getting into our food and water.
drugs given to humans are also excreted unchanged.
recent research has found a direct link between the increased use of these farmyard drugs and the appearance of antibiotic-resistant bugs that infect people.
正確答案：
D
答案解析：
前兩句講的是抗生素在歐洲和美國的大量使用，這句講的是由此導致的不良後果，接上去是最合理不過的。But明確地表明瞭這一轉折。
