People 　 　 usually 　 　 　 　 　 　(被要求做)a general 　 　(自我介绍)　 　 　 　 　 　 　 　 (在工作面试)

答案：are;asked to make;self-introduction;in the job interview

My life 　 　 　 　 　 　 　 　 (改变很多)　 　 　 　 　 　 　 　 　 　.（在刚过去的几年里）

答案：has changed a lot;in the past few years.

A:many hand B:huge sugar C:notice ocean

A:x＝﹣y B:x≠﹣y C:x＝y D:x≠y

A:a2+a3＝a5 B:a2•a3＝a6 C:（a2）3＝a6 D:（ab）2＝ab2

我们规定：当k，b为常数，k≠0，b≠0，k≠b时，一次函数y＝kx+b与y＝bx+k互为交换函数．例如：y＝4x+3的交换函数为y＝3x+4．一次函数y＝kx+2与它的交换函数图象的交点横坐标为　 　．

解：由题意可得，

[a086493b42674fb0.png]，

解得，[f3949cb0d5a5a33c.png]，

故答案为：1．

（1）　 　K2MnF6+　 　SbF5＝　 　F2+　 　KSbF6+　 　MnF3

（2）　 　Fe（NO3）3+　 　NaOH+　 　Cl2＝　 　Na2FeO4+　 　NaNO3+　 　NaCl+　 　H2O

（3）　 　MnO4﹣+　 　H++　 　Br﹣＝　 　Br2+　 　Mn2++　 　H2 O

解：（1）反应中Mn元素化合价由+4价降低为MnF3中+3价，总共降低1价，F元素化合价由﹣1价升高为F2中0价，总共升高2价，化合价升降最小公倍数为2，所以MnF3系数为2，F2系数为1，根据锰元素守恒可知K2MnF6系数为2，根据K元素守恒可知KSbF6系数为4，根据Sb元素守恒可知SbF5系数为4，反应方程式为2K2MnF6+4SbF5＝1F2↑+4KSbF6+2MnF3，

故答案为：2；4；1；4；2；

（2）在硝酸铁、氢氧化钠和氯气的反应中，铁元素从+3价变为+6价，氯元素从0价变为﹣1价，根据氧化还原反应中电子得失守恒和元素守恒配平后的化学方程式为2Fe（NO3）3+16NaOH+3Cl2＝2Na2FeO4+6NaNO3+6NaCl+8H2O，

故答案为：2；16；3；2；6；6；8；

（3）反应中Mn元素化合价由+7价降低为Mn2+中+2价，总共降低5价，Br元素化合价由﹣1价升高为Br2中0价，总共升高2价，化合价升降最小公倍数为10，所以Mn2+系数为2，Br2系数为5，反应方程式为2MnO4﹣+16H++10Br﹣＝5Br2+2Mn2++8H2O，

故答案为：2；16；10；5；2；8．

The jacket is ___________.

A: a black B: black C: an black D: the black

9. I was angry _____ missing the gongfu film with Cheng Long as hero.

A: at B: with C: for D: On

Dear Dick,

I.’ve been in China for 3 months. It is the first time that I ______96________(来到中国). At first, I _______97_____(经历) a lot of difficulties, for I made no friends here and I ________98_______(担心) my stay here too. But now I ________99_______ (相处很好) my Chinese friends who are willing to teach me Chinese , so I am ______100_______ (很感激他们). What's more, I ________101________(很好地掌握) simple Chinese which can be used for daily communication. When I ________102_________ (感到不安), they will try their best to ________103________(使我平静). Now I fall in love with Chinese Gongfu. My friends practice it ________104________(为了) make themselves strong, and I usually _______105________ (加入) their practice, which is quite interesting and meaningful.

I must stop here, and please give my regards to your parents.

Yours,

Steven

96.have been to China            97 went through       98 was concerned about / for

99 get/ am getting along(on )well with   100 grateful/thankful to them

101 have a good command of     102 am/ get/feel upset   103 calm me down

104 in order to/so as to/to           105 join in