其中為原點.求的范圍. 【查看更多】

 

題目列表(包括答案和解析)

讀寫任務(wù)

閱讀下面的短文，然后按照要求寫一篇150詞左右的英語短文。

Shanghai bans Chinese Internet slang terms

The language police in Shanghai, China’s largest city, plan to ban those and other Chinese Internet slang terms(網(wǎng)絡(luò)語言)from classrooms, official documents, and publications produced in the city, newspapers reported Friday．“On the Web, Internet slang is convenient and satisfying, but the mainstream media have a responsibility to guide proper and legal language usage,” the Shanghai Morning Post quoted city official Xia Xiurong as saying．With the increasing number of young people who use computer, chatting on line and sending messages become more and more popular．They invent, abbreviate and borrow a lot of words, such as “MM”, meaning girl, “PK” or player killer, for one’s competitor, “Konglong” or dinosaur for an unattractive woman．Several government departments of city have been given the right to carry on the regulation by monitoring the official documents, news broadcasts and textbooks in Shanghai．The results of their supervision(監(jiān)督)are expected to be made known to the public regularly．Yet many young people say the nation’s language needs to change with time and Internet slang can be a source of new vocabulary．

[寫作內(nèi)容]

你準(zhǔn)備向某英語報社的欄目投稿，主題是“網(wǎng)絡(luò)語言該不該禁止”。為此，在你查閱相關(guān)資料后完成下的任務(wù)。

1．以約30個詞概括短文的內(nèi)容；

2．以約120個詞就“網(wǎng)絡(luò)語言該不該禁止”這個主題發(fā)表你的看法，至少包含以下的內(nèi)容要點；

(1)你認(rèn)為網(wǎng)絡(luò)語言為什么能在一定范圍內(nèi)流行；

(2)你認(rèn)為網(wǎng)絡(luò)語言的運用有什么弊端；

(3)你有何建議？

[寫作要求]

(1)你可以使用實例或者其他論述方法支持你的論點，也可參照閱讀材料的內(nèi)容，但不得直接引用原文中的句子。

(2)標(biāo)題自擬。

查看答案和解析>>

閱讀下面的短文，然后按照要求寫一篇150詞左右的英語短文。

Dear Patti,

I’m writing to you for some advice on my studies. As you know, football is a very popular sport in the world and I am attracted to it and I have fallen in love with it, which makes me feel so crazy. I have been spending lots of time doing many things related to it, like watching football matches, reading newspapers and magazines, and searching the Web for more information about football. As a result, it has certainly disturbed my normal study. Though I know to be a football fan is my hobby and my major objective is to learn more knowledge in school, I can’t concentrate on my lessons and gradually I am tired of them. I am still a senior two middle school student, and I’ll have my own business even when I grow up, so I am not likely to do a job in the field of football. But now I can’t stop myself from getting involved further with football. So I feel very depressed and want to know how to deal with the contradiction (矛盾) between my studies and hobbies.

Sincerely yours,

Li Ming

【寫作內(nèi)容】

假設(shè)你是李明的筆友Patti，請根據(jù)他信中所訴說的苦惱回信。以下是回信的內(nèi)容（信的開頭和結(jié)尾已經(jīng)為你寫好）

以約30個詞概括李明的苦惱；

以約120個詞發(fā)表你的看法，并包括如下要點：

（1）你認(rèn)為李明應(yīng)該如何處理好他的學(xué)習(xí)和業(yè)余愛好的關(guān)系，并說明你的理由。

（2）表達(dá)你對他的希望。

【寫作要求】

1．概括準(zhǔn)確，語言規(guī)范，內(nèi)容合適，篇章結(jié)構(gòu)連貫。

2. 可以使用實例或其他論述的方法支持你的論點，也可以參照閱讀材料的內(nèi)容，但不得直接引用原文中的句子；

3．圍繞提示寫，內(nèi)容充實，有建設(shè)性。 文中不能出現(xiàn)真實姓名和學(xué)校名稱。

Dear Li Ming,

Thank you for your letter. From your letter, I’ve known something about your situation.

                                                                               

                                                                              

                                                                            

                                                                               

                                                                              

                                                                              

                                                                               

                                                                                    

Yours

Patti

查看答案和解析>>

閱讀下面的短文，然后按照要求寫一篇150詞左右的英語短文。

Dear Patti,

I’m writing to you for some advice on my studies．s you know, football is a very popular sport in the world and I am attracted to it and I have fallen in love with it, which makes me feel so crazy．I have been spending lots of time doing many things related to it, like watching football matches, reading newspapers and magazines, and searching the Web for more information about football．s a result, it has certainly disturbed my normal study．Though I know to be a football fan is my hobby and my major objective is to learn more knowledge in school, I can’t concentrate on my lessons and gradually I am tired of them．I am still a senior two middle school student, and I’ll have my own business even when I grow up, so I am not likely to do a job in the field of football．But now I can’t stop myself from getting involved further with football．So I feel very depressed and want to know how to deal with the contradiction(矛盾)between my studies and hobbies．

Sincerely yours,

Li Ming

[寫作內(nèi)容]

假設(shè)你是李明的筆友Patti，請根據(jù)他信中所訴說的苦惱回信。以下是回信的內(nèi)容(信的開頭和結(jié)尾已經(jīng)為你寫好)

以約30個詞概括李明的苦惱；

以約120個詞發(fā)表你的看法，并包括如下要點：

(1)你認(rèn)為李明應(yīng)該如何處理好他的學(xué)習(xí)和業(yè)余愛好的關(guān)系，并說明你的理由。

(2)表達(dá)你對他的希望。

[寫作要求]

1．概括準(zhǔn)確，語言規(guī)范，內(nèi)容合適，篇章結(jié)構(gòu)連貫。

2．可以使用實例或其他論述的方法支持你的論點，也可以參照閱讀材料的內(nèi)容，但不得直接引用原文中的句子；

3．圍繞提示寫，內(nèi)容充實，有建設(shè)性。 文中不能出現(xiàn)真實姓名和學(xué)校名稱。

Dear Li Ming,

Thank you for your letter．From your letter, I’ve known something about your situation．

__________________

__________________

Yours

Patti

查看答案和解析>>

書面表達(dá)

閱讀下面的短文，然后按照要求寫一篇150詞左右的英語短文。

Dear Patti,

　　I'm writing to you for some advice on my studies．As you know, football is a very popular sport in the world and I am attracted to it and I have fallen in love with it, which makes me feel so crazy．I have been spending lots of time doing many things related to it, like watching football matches, reading newspapers and magazines, and searching the Web for more information about football．As a result, it has certainly disturbed my normal study．Though I know to be a football fan is my hobby and my major objective is to learn more knowledge in school, I can't concentrate on my lessons and gradually I am tired of them．I am still a senior two middle school student, and I'll have my own business even when I grow up, so I am not likely to do a job in the field of football．But now I can't stop myself from getting involved further with football．So I feel very depressed and want to know how to deal with the contradiction(矛盾)between my studies and hobbies．

Sincerely yours,

Li Ming

［寫作內(nèi)容］

假設(shè)你是李明的筆友Patti，請根據(jù)他信中所訴說的苦惱回信。以下是回信的內(nèi)容(信的開頭和結(jié)尾已經(jīng)為你寫好)

以約30個詞概括李明的苦惱；

以約120個詞發(fā)表你的看法，并包括如下要點：

(1)你認(rèn)為李明應(yīng)該如何處理好他的學(xué)習(xí)和業(yè)余愛好的關(guān)系，并說明你的理由。

(2)表達(dá)你對他的希望。

［寫作要求］

1．概括準(zhǔn)確，語言規(guī)范，內(nèi)容合適，篇章結(jié)構(gòu)連貫。

2．可以使用實例或其他論述的方法支持你的論點，也可以參照閱讀材料的內(nèi)容，但不得直接引用原文中的句子；

3．圍繞提示寫，內(nèi)容充實，有建設(shè)性。 文中不能出現(xiàn)真實姓名和學(xué)校名稱。

Dear Li Ming,

　　Thank you for your letter．From your letter, I’ve known something about your situation．

Yours

Patti

查看答案和解析>>

書面表達(dá)（滿分25分）

閱讀下面的短文，然后按照要求寫一篇150詞左右的英語短文。

Dear Patti,

I’m writing to you for some advice on my studies．As you know, football is a very popular sport in the world and I am attracted to it and I have fallen in love with it, which makes me feel so crazy．I have been spending lots of time doing many things related to it, like watching football matches, reading newspapers and magazines, and searching the Web for more information about football．As a result, it has certainly disturbed my normal study．Though I know to be a football fan is my hobby and my major objective is to learn more knowledge in school, I can’t concentrate on my lessons and gradually I am tired of them．I am still a senior two middle school student, and I’ll have my own business even when I grow up, so I am not likely to do a job in the field of football．But now I can’t stop myself from getting involved further with football．So I feel very depressed and want to know how to deal with the contradiction （矛盾） between my studies and hobbies．

Sincerely yours,

Li Ming

【寫作內(nèi)容】

假設(shè)你是李明的筆友Patti，請根據(jù)他信中所訴說的苦惱回信。以下是回信的內(nèi)容（信的開頭和結(jié)尾已經(jīng)為你寫好）

以約30個詞概括李明的苦惱；

以約120個詞發(fā)表你的看法，并包括如下要點：

（1）你認(rèn)為李明應(yīng)該如何處理好他的學(xué)習(xí)和業(yè)余愛好的關(guān)系，并說明你的理由。

（2）表達(dá)你對他的希望。

【寫作要求】

1．概括準(zhǔn)確，語言規(guī)范，內(nèi)容合適，篇章結(jié)構(gòu)連貫。

2．可以使用實例或其他論述的方法支持你的論點，也可以參照閱讀材料的內(nèi)容，但不得直接引用原文中的句子；

3．圍繞提示寫，內(nèi)容充實，有建設(shè)性。 文中不能出現(xiàn)真實姓名和學(xué)校名稱。

Dear Li Ming,

Thank you for your letter．From your letter, I’ve known something about your situation．

Yours

Patti

 

查看答案和解析>>

1．解析：，故選A。

2．解析：∵

，

故選B。

3．解析：由，得，此時，所以，，故選C。

4．解析：顯然，若與共線，則與共線；若與共線，則，即，得，∴與共線，∴與共線是與共線的充要條件，故選C。

5．解析：設(shè)公差為，由題意得，；，解得或，故選C。

6．解析：∵雙曲線的右焦點到一條漸近線的距離等于焦距的，∴，又∵，∴，∴，∴雙曲線的離心率是。故選B.

7.解析：∵、為正實數(shù)，∴，∴；由均值不等式得恒成立，，故②不恒成立，又因為函數(shù)在是增函數(shù)，∴，故恒成立的不等式是①③④。故選C.

8．解析：∵，∴在區(qū)間上恒成立，即在區(qū)間上恒成立，∴，故選D。

9．解析：∵

，此函數(shù)的最小值為，故選C。

10．解析：如圖，∵正三角形的邊長為，∴，∴，又∵，∴，故選D。

11．解析：∵在區(qū)間上是增函數(shù)且，∴其反函數(shù)在區(qū)間上是增函數(shù)，∴，故選A

12．解析：如圖，①當(dāng)或時，圓面被分成2塊，涂色方法有20種；②當(dāng)或時，圓面被分成3塊，涂色方法有60種；

③當(dāng)時，圓面被分成4塊，涂色方法有120種，所以m的取值范圍是，故選A。

13．解析：做出表示的平面區(qū)域如圖，當(dāng)直線經(jīng)過點時，取得最大值5。

學(xué)科網(wǎng)(Zxxk.Com)14.解析：∵，∴時，，又時，滿足上式，因此，，

∴。

學(xué)科網(wǎng)(Zxxk.Com)15．解析：設(shè)正四面體的棱長為，連，取的中點，連，∵為的中點，∴∥，∴或其補角為與所成角，∵，，∴，∴，又∵，∴，∴與所成角的余弦值為。

學(xué)科網(wǎng)(Zxxk.Com)16．解析：∵，∴，∵點為的準(zhǔn)線與軸的交點，由向量的加法法則及拋物線的對稱性可知，點為拋物線上關(guān)于軸對稱的兩點且做出圖形如右圖，其中為點到準(zhǔn)線的距離，四邊形為菱形，∴，∴，∴，∴，∴，∴向量與的夾角為。

17．(10分)解析：（Ⅰ）由正弦定理得，，，…2分

∴，，………4分

（Ⅱ）∵，，∴，∴，………………………6分

又∵，∴，∴，………………………8分

∴。………………………10分

18.解析：（Ⅰ）∵，∴；……………………理3文4分

（Ⅱ）∵三科會考不合格的概率均為，∴學(xué)生甲不能拿到高中畢業(yè)證的概率；……………………理6文8分

（Ⅲ）∵每科得A，B的概率分別為，∴學(xué)生甲被評為三好學(xué)生的概率為�！�12分

（理）∵，，，�！�9分

∴的分布列如下表：

0

1

2

3

∴的數(shù)學(xué)期望�！�12分

19．(12分)解析：（Ⅰ）時，

，，

    

由得， 或   ………3分

 

 

+

0

－

0

+

遞增

極大值

遞減

極小值

遞增

，      ………………………6分

（Ⅱ）在定義域上是增函數(shù)，

對恒成立，即 

   ………………………9分

又（當(dāng)且僅當(dāng)時，）

               

 ………………………4分

學(xué)科網(wǎng)(Zxxk.Com)              

20．解析：（Ⅰ）∵∥，，∴，∵底面，∴，∴平面，∴，又∵平面，∴，∴平面，∴�！�4分

（Ⅱ）∵平面，∴，，∴為二面角的平面角，………………………6分

，，∴，又∵平面，，∴，∴二面角的正切值的大小為。………………………8分

（Ⅲ）過點做∥，交于點，∵平面，∴為在平面內(nèi)的射影，∴為與平面所成的角，………………………10分

學(xué)科網(wǎng)(Zxxk.Com)∵，∴，又∵∥，∴和與平面所成的角相等，∴與平面所成角的正切值為�！�12分

解法2：如圖建立空間直角坐標(biāo)系，（Ⅰ）∵，，∴點的坐標(biāo)分別是，，，∴，，設(shè)，∵平面，∴，∴，取，∴，∴�！�4分

（Ⅱ）設(shè)二面角的大小為，∵平面的法向量是，平面的法向量是，∴，∴，∴二面角的正切值的大小為�！�8分

（Ⅲ）設(shè)與平面所成角的大小為，∵平面的法向量是，，∴，∴，∴與平面所成角的正切值為。………………………12分

21.（Ⅰ） 解析：如圖，設(shè)右準(zhǔn)線與軸的交點為，過點


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