5. Commercial television is one of the most effective medium for advertising.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

第二節(jié)(共10小題;每小題1. 5分，滿分15分)

閱讀下面材料，在空白處填入適當(dāng)?shù)膬?nèi)容(1個(gè)單詞) 或括號內(nèi)單詞的正確形式。

            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.

查看答案和解析>>

科目：高中英語 來源： 題型：

3. They had a wonderful holiday,despite of the bad. weather.

查看答案和解析>>

科目：高中英語 來源： 題型：

Task II. Read the part of the text describing the procedure of cloning Dolly the sheep,and put the following events in the correct order according to the procedure.

   A. Remove the cell's nucleus.

   B. Wait until the egg cell with its new nucleus grows into an embryo.

   C. Remove the nucleus from a female sheep's egg cell.

   D. Put the embryo into another female sheep.

   E. A cloned lamb is produced.

   F. Take a cell from the sheep you intend to clone.

   G. Put the cell's nucleus into the female sheep’s cell.

查看答案和解析>>

科目：高中英語 來源： 題型：

7. Scientists have made a major (突破) in the treatment of cancer.

查看答案和解析>>

科目：高中英語 來源： 題型：

6. Recent   (針對失聰兒童的研究) has produced some interesting findings about their speech.

查看答案和解析>>

科目：高中英語 來源： 題型：

4. People tend to make (設(shè)想) about you based on your

appearance.

查看答案和解析>>

科目：高中英語 來源： 題型：

選用方框內(nèi)合適的單詞并用其正確形式填空(每個(gè)單詞限用一次) 。

strike,resist,decorate,able,drawback,adore

1. to sleep,I got up and made myself a drink.

查看答案和解析>>

科目：高中英語 來源： 題型：

2. They asked her to be mercy to the prisoners.

查看答案和解析>>

同步練習(xí)冊答案