问题解决：酝酿效应就是指人在解决问题的过程中，从某种事物中看出解决问题的可能性或途径

下表为元素周期表中部分元素的原子结构示意图．

（1）表中磷原子的核电荷数x=______．

（2）表中具有相对稳定结构的元素是______．

（3）在化学反应中，镁原子失去电子后形成______（填写化学符号）．

（4）钠元素与硫元素形成的化合物化学式为______．

（5）上述元素在周期表中处于同一周期的原因是______．

下列各式中精确到百分位的是[ ]

A．0.7933≈0.79    

B．6.047≈6.0     

C．9.724≈9.7

词汇。（20分）

小题1:Our club has a         (一周) meeting on Wednesday.

小题2:Have you seen the film         (导演) by Zhang Yimou? Not yet.

小题3:These Asian tigers are actually         (消失) quicker than pandas.

小题4:The twin brothers are         (争论)about what TV programmes to watch.

小题5:A poor man was found       (死) at home last week.

小题6:The actors in this film act much         (差) and I feel far more bored.

小题7:Don’t give up easily while         (面对) difficulty.

小题8:The number of wild animals is getting smaller because of the________of their living areas. (丧失)

小题9:The girl is a top student in her school. She will go abroad for________study next month. ( 进一步)

小题10:Would you please pass on a ______________(音信) for me to Jack?

小题11:The car _____________(产业) is important to the United States.

小题12:The year’s Beijing Music Awards will be c___________ live.

小题13:To be a good actor, Eddie decided to put all his         (努力)into practicing.

小题14:His _____________(成就) go beyond IT industry.

小题15:The students all stood up when the teacher _____________ (进入) the classroom.

小题16:Mr Green put a lot of _______________(努力) into arranging the concert.

小题17:Gong Li is a famous Chinese successful _______________ (演员).

小题18:He asked me to stop that _________________  (立即).

小题19:His _________________(die) was a great loss to the whole world.

小题20:You’d better ____________ (not play) on the road.

天疱疮是自身免疫性大疱性皮肤病。天疱疮患者血循环中存在（）。

治疗中焦虚寒，肝气上逆之巅顶头痛，宜选用

A．丁香
B．肉桂
C．吴茱萸
D．干姜
E．花椒