题目内容

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一 个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧) ,并在其下面写出该加的词。

删除:把多余的词用斜线(\) 划掉。

修改:在错的词下划一横线,并在该词下面写 出修改后的词。

注意:1. 每处错误及其修改均仅限一词;

    2. 只充许修改10处,多者(从第11处起) 不计分。

     Wise and warm-hearted,Mr. Smith taught me the history when I was in Grade 7. I shall never forget how he told me personally one day. He said, “Always aim high than you believe you can reach. If not,you’ 11 discover that when your talents be set free by your imagination,you can achieve any goal. If people offer their helps or wisdom as you go through life,accepting it gratefully. You can learn many from those who have gone before you. However,don't be afraid step off the accepted path and head off in your own direction unless your heart tells you that it’s the right way for you."

1. . .. taught me the history ...   去掉 the

2. . .. how he told me ...   how what

3. . .. aim high than ...   high higher

4. If not,you* 11. ..   not so

5. . .. be set free by ...   beare

6. . .. offer their helps ...   helpshelp

7. . .. accepting it gratefiilly.   acceptingaccept

8. . .. can learn many ...   manymuch

9. . .. be afraid step ...   afraid 后加 to   

10. . .. unless your heart   unlessif

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   Livestock(牲畜) cloning is the practice of cloning sheep,cattle and other livestock species as a way to improve efficiency. The basic idea behind livestock cloning is to clone animals that have certain qualities,such as cows that produce more milk or meat. 1 However,this practice is very controversial,and livestock farmers have been hesitant to adopt it fully because of public opposition and certain inefficiencies.

   In technical terms,livestock are cloned by taking cells from one animal and using them to fertilize eggs(使卵子受精) .Scientists take the fertilized eggs and put them in female animals. 2 Many animals are bom with abnormal shapes. Scientists are looking for ways to improve the process and make it less expensive to adopt on a wider scale.

   3 For example,if farmers were able to take only their very best animals and recreate them many times,they could potentially be more productive.

   There are also some potential problems with cloned livestock. 4. For example,when a disease hits,there are usually individuals who cannot be harmed by the disease or are more resistant,and they will generally survive. If all the animals were genetically (在基因方面) identical or similar,this sort of disease could totally destroy an entire generation of livestock,leaving the world with a massive food shortage.

   In addition to concerns about genetic diversity,there are other concerns about cloning. 5 There are also some people who worry that livestock cloning research may be a gateway to introducing human cloning,which is widely disapproved of.

   A. Are the surviving clones really clones?

   B. Therefore,the new species is expected to be better.

   C. The biggest one arises from a reduction in genetic diversity.

   D. Cloned livestock have the potential to provide some major benefits.

   E. Cloning animals shows us what might happen if we try to clone humans.

   F. These concerns sometimes come from worries over unforeseen consequences.

   G. This process doesn't always work perfectly,and it can be relatively expensive.

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