6.实验室用一准确的仪器来分别测定一个氢分子的质量时,所得的数值可能有
A.3种 B.4种 C.5种 D.6种
5.下列比较关系与排列顺序不正确的是
A.酸性:H4SiO4<H3PO4<H2SO4<HClO4 B.熔沸点:HF<HCl<HBr<HI
C.还原性:SiH4>NH3>H2O>HF D.半径:Al3+<Mg2+<Na+<F-
4.原电池总反应的离子方程式是Cu +2Fe3+= Cu2+ +2Fe2+,该原电池的组成正确的是
|
A |
B |
C |
D |
正极 |
Cu |
Fe |
Cu |
C |
负极 |
Fe |
Cu |
C |
Cu |
电解质溶液 |
CuSO4 |
CuSO4 |
FeCl3 |
FeCl3 |
3.下列变化过程需要吸收能量的是
A.2H2 + O2 = 2H2O B.CaO + H2O = Ca(OH)2
C.Cl + Cl → Cl2 D.H2 → H + H
2.乙烷中混有少量的乙烯,欲除去乙烯可选用的试剂是
A.NaOH溶液 B.蒸馏水 C.溴水 D.Na2CO3溶液
1.下列化合物中既含有离子键又含有非极性共价键的化合物是
A.CaBr2 B.Mg3N2 C.Na2O2 D.CH3CH2OH
3、 可能用到的相对原子质量:
H-1,C-12,N-14,O-16,Fe-56,Cu-64,Zn-65
Ⅰ卷(共60分)
以下30小题,每小题只有一个正确选项,每小题2分。
2、 将第Ⅰ卷的答案用2B铅笔涂在答题卡上,第II卷的答案写在答题纸上。
1、 请将你的姓名、班级、考号填写在答题纸的指定位置上;
2.suggest,advise,persuade
suggest v. 作“建议”讲时,常见结构有:suggest sth.建议某事;suggest doing sth.建议做某事;suggest one’s doing sth.建议某人做某事; suggest that sb.(should) do sth.建议某人做某事;作“预示”讲时,构成句型 suggest sth.和 suggest that-clause(不用虚拟语气)。
advise v.“建议,忠告”,构成句型:advise sb.to do sth./advise doing sth./advise that sb.(should) do sth.。
persuade v. “说服”,构成短语persuade sb.to do sth.说服某人做某事,等于persuade sb.into doing sth.。
应用
(1)I ______ my father to give up smoking,but he didn’t listen to me.
(2)He finally ______ them to sing for free.
(3)I ______ he help his brother with the farm work while he is free.
(4)His pale face ______ that he is in poor health.
(5)My ______ is that the meeting(should) be put off till next Monday.
(6)-When shall we start off ?
-I ______ tomorrow morning.
(7)Can you ______ me what to do next ?
答案:(1)advised (2)persuaded (3)suggest/advise (4)suggests (5)suggestion (6)suggest/advise (7)advise
典例剖析
[例1](2004年辽宁,26)Maybe you have been to many countries,but nowhere else ______ such a beautiful palace.
you find B.you could find
C.you can find D.could you find
剖析:第一个分句中使用现在完成时态,第二个分句常使用现在时,排除B、D项;含有否定意义的副词放在句首时,该句要用部分倒装,排除C项。
答案:A
[例2](2004年福建,28)-How do you ______ we go to Beijing for our holidays?
-I think we’d better fly there.It’s much more comfortable.
A.insist B.want
C.suppose D.suggest
剖析:根据本句的谓语用原形这一现象可知用suggest。按句子结构的划分,这句话是含有插入语的特殊疑问句。插入成分的动词是suggest时,主句的谓语动词多用should+动词原形,should可省略。insist一词也有该用法,但与句意不符。如果用suppose之类的词作插入语,此句的谓语应该是将来时。
答案:D
[例3](2004年福建,32)-I’ll tell Mary about her new job tomorrow.
-You ______ her last week.
A.ought to tell B.would have told
C.must tell D.should have told
剖析:情态动词+have+过去分词说明的是过去。根据状语last week和本句意义,应该选should have told,意为“本应该上星期告诉她,但你却没有”。
答案:D
[例4](2004年广东,35)-Do you mind if I open the window?
-______ I feel a bit cold.
A.Of course not. B.I’d rather you didn’t.
C.Go ahead. D.Why not?
剖析:由I feel a bit cold看,答话者不愿开窗。A、C、D都表示“要开窗”的意思。
答案:B
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