A．that B．which

　　C．what that D．that what

　　解析：选D。考查名词性从句。that 引导的同位语从句说明doubt的内容；在此同位语从句中含有一个主语从句what matters。

　　9．After two years' research，we now have a ________ better understanding of the disease.

　　A．very B．far

　　C．fairly D．quite

　　解析：选B。考查形容词比较级用法。句意：经过两年的研究，我们现在对这种疾病有了更进一步的了解。依句意，四个选项中只有B项可以和比较级连用。

　　10．He came ________where I was hiding and my heart beat faster.

　　A．more closely to B．much closer

　　C．rather closer to D．quite closely to

　　解析：选C。close和closely都可用作副词，但意思不一样。close意为"靠近，接近"，常与介词to连用；closely表示抽象意义，意为"密切地，仔细地"。根据句意排除A、D项，故选C。

　　Ⅱ.阅读理解

　　A

　　(2010届英语周报第2期)Martin Frobisher, born in Yorkshire，went to London as a boy to be educated by a relative. He showed no talent for book learning，so his relative sent him to sea. Before reaching manhood, Frobisher had been on two voyages to the Guinea Coast. On the second he was captured and handed over to the Portuguese garrisoning(驻守) Sao Jorge da Mina(now Elmina, Ghana)，who allowed him to return to England.

　　By the 1570s，England had largely abandoned hope of finding a Northeast Passage to Asia, and thoughts turned to the Northwest. Frobisher worked together with Michael Lok, a man of some wealth and learning. Frobisher's first voyage, in 1576，took him to Frobisher Bay in Baffin Island.

　　English investors(投资者)，including Queen Elizabeth, poured money into Lok's Company of Cathay. Frobisher sailed again in 1577, this time to ship home what he mistakenly thought was goldbearing minerals.Lok still felt hopeful and sent Frobisher back in 1578. This time the mariner discovered the Hudson Strait. He followed the strait for nearly 200 miles, believing it to be a more promising Northwest Passage than Frobisher Bay. He brought home more dirt and rocks, but English confidence had gone；Lok went to a debtors' prison and Frobisher sought other employment.

　　Frobisher accompanied Sir Francis Drake to the West Indies in 1585－1586.When Philip Ⅱ's Spanish Armada(无敌舰队)entered the English Channel in 1588, Frobisher's part in the fighting was successful and he received knighthood(爵士爵位)．He died of a wound received near Brest，where he had been sent to relieve the siege(解除包围)．He lived just long enough to be taken back to Plymouth.

　　【解题导语】　本文记叙了英国著名探险家Martin Frobisher，他发现了加拿大的哈得孙海峡。

　　1．The underlined word"abandoned"in Paragraph 2 can best be replaced by ________.

　　A．kept alive B．given up

　　C．seen D．shared

　　解析：选B。词义猜测题。根据本句的thoughts turned to the Northwest可知，当时英国人基本放弃了东北通道的探寻，把目光投向了西北通道，故选B项。

　　2．From Paragraph 3 we learn that Frobisher at first ________.

　　A．brought gold to England

　　B．discovered a Northeast Passage

C．received strong support