题目内容
1．---Is Peter still in Europe？---No．He and his wife ________ home for a week up to now．（ ）
| A． | have returned | B． | had returned | C． | have been back | D． | has been at |
分析 ---皮特还在欧洲吗？
---不在，他和他妻子回来到现在一个星期了．
解答 答案：C．
结合句意可知回来return的动作发生在过去，持续了一段时间，故用现在完成时have/has+过去分词，主语He and his wife，故have，return是短暂性动词，不能与一段时间连用，故换成be back，be的过去分词是been，故答案是C．
点评 现在完成时有两种用法1．过去发生的某一动作对现在造成的影响或结果或到现在为止已经发生或完成的动作．2．表示过去发生的、持续到现在的动作或状态．
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相关题目
12．Tim Cook，the CEO of Apple，made his ________sixth visit to China and were warmly welcomed by his Chinese followers．（ ）
| A． | a | B． | an | C． | the | D． | / |
9．The first school ______ we visited yesterday is not far from here．（ ）
| A． | that | B． | which | C． | to which | D． | where |
13．-She's never been to Hong Kong，_________？
-__________．But how she wishes to go there again!（ ）
-__________．But how she wishes to go there again!（ ）
| A． | is she； Yes | B． | is she； No | C． | has she； Yes | D． | has she； No |
4．The computer has become an important part of people's lives．It has its own special words．One example is the word mouse．A computer mouse is not a small gray animal．It is a small device （设备） that you move around on a table in front of a computer．It was called a mouse because it looked like a real mouse with a tail at one end，
Using a computer takes some training．People who are experts are sometimes called hackers．A hacker is usually a person who writes computer programs in a special computer language．But the word hacker is also used to describe a person who tries to steal，information from a computer．
Another well-known computer word is Google．It is the name of a popular search engine （搜索引擎）．People use the search engine to find information about everything on the Internet．
If you Google someone，you might find that person's name on a．biog．A blog is a personal diary online．It might contain stories，pictures or songs on it．Some people add information to their blogs every day．
根据短文内容完成表格．每空一词．
Using a computer takes some training．People who are experts are sometimes called hackers．A hacker is usually a person who writes computer programs in a special computer language．But the word hacker is also used to describe a person who tries to steal，information from a computer．
Another well-known computer word is Google．It is the name of a popular search engine （搜索引擎）．People use the search engine to find information about everything on the Internet．
If you Google someone，you might find that person's name on a．biog．A blog is a personal diary online．It might contain stories，pictures or songs on it．Some people add information to their blogs every day．
根据短文内容完成表格．每空一词．
| In formation Card | |
| What the passage is about | Computer 65．words |
| How the computer"mouse'，got its name | Because of its 66．look |
| What"Google"is | A computer search 67．engine |
| How many computers words the passage talks about | 68．4 |