Question

第二节(共10小题;每小题1. 5分，满分15分)

阅读下面材料，在空白处填入适当的内容(1个单词) 或括号内单词的正确形式。

            Reproductive cloning may enable researchers to make copies of animals with potential benefits for the field of medicine and many others.

            For instance,the Scottish researchers who cloned Dolly have also cloned other sheep that have been genetically changed

61. (produce) milk that contains a human protein essential for blood (凝固) .They did this in the hope 62.someday this protein may be obtained from the milk and given to humans 63.blood doesn’t clot properly.

            64. application is to create clones to build populations of endangered,or possibly even extinct species of animals. In 2003,an endangered type of ox,called the banteng,was successfully cloned. 65.(short) after that,three African wildcats' were cloned using frozen embryos as a source of DNA. Some experts are 66. favour of cloning extinct animals,saying that it can save many species that would otherwise disappear,while some raise a(n) 67.(object) , arguing that cloning produces a population of genetically identical individuals that lack the genetic variability necessary for species survival.

            Some people have even expressed interest in 68. (have) their deceased pets cloned in the hope of getting a similar animal to replace the dead one. But as 69.(show) by a cloned cat,a clone may not turn out exactly like the original pet whose DNA 70.(use) to make the clone.

Answer 1

61. to produce。考查不定式作状语的用法。克隆其它羊的目的是制造含凝血蛋白的奶，故填to produce。

62. that。考查连接词。设空处引导同位语从句，解释说明hope的内容，且从句结构和意义均完整，故填that。

63. whose。考查关系词。设空处引导限制 性定语从句修饰humans ,且在从句中作定语，故填whose。

64. Another。考查限定词。设空处限定 application ,且上一段讲了克隆动物的一个应用，本段讲到的是克隆的另一个应用，故填Another。

65. Shortly。考查副词。设空处作状语修饰 after ,故填 Shortly。

66. in。考查固定结构。in favour of意为“赞成，支持”。

67. objection。考查名词。设空处作宾语，表不“反对”，故填objection。

68. having。考查动词-ing形式作宾语的用法。设空处作介词in的宾语，且people与have之间是逻辑上的圭谓关系，故填 having。

69. shown。考查过去分词作状语的用法。as shown by…意为“正如…所示展示

的”。

70. was used。考查一般过去时的被动语态。DNA与use之间是被动关系，且use 所表示的动作发生在过去，应用一般过去时，故填was used。