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[单选题]

Ancient people also obtained fire from sparks () when rocks were struck together.

A.produced

B.to be produced

C.producing

D.to produce

答案
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A、produced

解析:

参考解析:翻译:古代人也从石头碰撞产生的火花中取火。

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第1题
Have a look at Paragraphs 7 and 8 to see how a statement is supported by examples. Then fill out the
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Paras. 7&8

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The most distinctive members of the European branch of the human tree are the Basques of France and Spain. They show unusual patterns for several genes, including the highest rate of a rare blood type. Their language is of unknown origin and cannot be placed within any standard classification. And the fact that they live in a region next to famous caves which contain vivid paintings from Europe's early humans, leads Cavalli-Sforza to the following conclusion: "The Basques are extremely likely to be the most direct relatives of the Cro-Magnon people, among the first modern humans in Europe." All Europeans are thought to be a mixed population, with 65% Asian and 35% African genes.

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Example 1:

Many scientists consider the Khoisan a distinct race of very ancient origin, directly descended from the most primitive human ancestors. But the genetic maps show ______ (Para. 7)

Example 2:

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第2题
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第3题
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第4题
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第5题
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第8题
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第9题
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The broadened religious enlightenment that resulted was followed in later centuries by a political one. Political theorists who favored doctrines promoting the natural rights of man called for an attack upon illiteracy. Political revolutions, particularly in the United States and France, helped inaugurate an era in which all classes were called upon to become informed on public policy for their own welfare. Against this political background there emerged the movement for universal popular education. Literacy came to be understood as a means whereby the individual could benefit and advance, and gradually whole societies began to acknowledge that universal literacy among their citizens was an avenue to greater economic well-being.

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C.history sees an even progress towards literacy.

D.in history literacy suffers ups and downs.

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第10题
To the people of the Bijagos archipelago, the shark is sacred. In (1)_____ ceremonies youn

To the people of the Bijagos archipelago, the shark is sacred. In (1)_____ ceremonies young men from these islands (2)_____ the coast of Guinea-Bissau must spear a shark and present the liver to their (3)_____ But can this ancient ceremony (4)_____ the economic fact that a bowl of shark's fin soup can cost $150 in the Far East?

In the archipelago, and all along West Africa's coast, sharks are being "finned" to (5)_____ Fishermen can earn $50-80 (6)_____ a kilo of sharks' fins, far more than ordinary fish. By the time they (7)_____ the Far East, they could be (8)_____ $500 a kilo or more valuable (9)_____ aphrodisiacs as well as for gourmets.

The high demand is (10)_____ shark populations in West Africa and elsewhere. Most fish, vulnerable to (11)_____ eaten by bigger fish, protect their species by laying millions of eggs. But the shark has no natural enemy (12)_____ man, and gives birth to just a (13)_____ of young. (14)_____ female harks are often caught (15)_____ pregnant, the result has been predictably disastrous. Shark-like sawfish, which are also "finned", are already virtually (16)_____ off the Bijagos islands, and guitarfish are (17)_____ threat.

In some parts of West Africa, when sharks and other similar fish have been finned, the rest of the flesh is often (18)_____, salted and exported to places like Ghana, where there is a (19)_____ for lt. Dried shark is used much (20)_____ a stock cube would be elsewhere. But in the Bijagos islands, where traders are uninterested in exporting dried shark, carcasses are often left to rot on the beach.

A.beginning

B.start

C.initiation

D.initial

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