答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”There are many reasons in which people like to shop in department stores.

Xiao Liu has worked in the plant for only a few days. He is a green hand at doing this job.划线部分应该翻译成“新手”

All of the plants now farmed on a large scale were developed from plants _____wild.

答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”The only problem is which we now have a new kind of criminal.

阅读理解：阅读下列短文，回答文后问题，选择最佳答案Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．3. Land becomes desert after all trees are cut down because __________.

Achilles Heal means ones fetal weal point.

答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”Many joggers feel that if they can succeed in jogging, they can succeed in other things as well.

Direction: Fill in the blanks with thephrases given below. Change the form if necessary.[sell out; in other words; consist of; stand for; rely on; demand for; engage in; at hand; yield to; confront with]5. He came to realize that he had nobody to[填空1]but himself.

类 Teacher 和 Student 是类 Person 的子类; Teacher t; Student s; // t and s are all non-null. if (t instanceof Person ){ s=(Student)t; } 最后一条语句的结果是:（ ）

Which sentence is right?