題目
材料全屏
11

【單選】

All of the following are mentioned as factors that encourage fossilization except the?_____

A

speed of burying

B

conditions of the water

C

rate at which soft tissues decay

D

cause of death of the animal

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第一段中間部分提到了 their fossilization required a suite of factors:軟組織的腐爛速度緩慢;很少被其他動(dòng)物殘食;缺少混雜沖走小骨頭的快速水流和波浪;以及相當(dāng)快地被掩埋。因此只有D選項(xiàng),也就是動(dòng)物的死因沒(méi)有被提及。

多做幾道

材料全屏
11

【單選】

All of the following are mentioned as factors that encourage fossilization except the?_____

A

speed of burying

B

conditions of the water

C

rate at which soft tissues decay

D

cause of death of the animal

Which of the following is true of the fossil deposits discussed in the passage?_____

A

They include examples of newly discovered species.

B

They contain large numbers of well-preserved specimens.

C

They are older than fossils found in other places.

D

They have been analyzed more carefully than other fossils.

The word"outstanding"in Paragraph 2 is closest in meaning to_____

A

extensive

B

surprising

C

vertical

D

excellent

Why does the author mention the specimen preserved in the birth canal?_____

A

To illustrate that the embryo fossils are quite advanced in their development

B

To explain why the fossils are well preserved

C

To indicate how the ichthyosaurs died

D

To prove that ichthyosaurs are marine animals

Which of the following best expresses the relationship between the first and second paragraphs_____

A

The first paragraph describes a place while the second paragraph describes a field of study

B

The first paragraph defines the terms that are used in the second paragraph.

C

The second paragraph describes a specific instance of the general topic discussed in the first paragraph.

D

The second paragraph presents information that contrasts with the information given in the first paragraph.

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