高一英语选择题和化学问题...~~

...初三刚毕业...刚上一堂英语课...有点蒙O O..好象课堂讲的内容无法应付作业...

...能帮解答下面题目 并且解释一下为什么么?..

1\The big earthquake is still on.___is badly needed in the mountain villages.

A.Much clothing B.Lots of suits C.A good many clothes D.A lot of clothes

2\The police are offering a ___ to anyone who can give information about the lost boy.

A.price B.prize C.reward D.money

3\If you think your plan is perfect, you should put it into___.

A.fact B.reality C.practice D.deed

4\He has some ___ in reading ___ written by these famous writers.

A.trouble;work B.troubles;works C.difficulties;work D.difficulty;works

5\Lao Li is a friend of ___.He is reading___newspaper now.

A.mine;today B.me;today's C.my father;today D.my father's;today's

6\She doesn't pay any ___ to her clothing.When I tried to persuade her,she took no___of me.

A.notes;remark B.att

A 主谓一致 注意下面是is BCD都是名词复数，只有A是可以的，clothing不可数
B offer a reward 悬赏 固定词组
C put sth into practice 固定词组 付诸行动
D trouble difficulty作麻烦，困难时都不可数，work指作品时可数
D 谁的 有生命的都是 a…… of 名词所有格 没生命的 ……’s
B pay attention to 和take no notice of 都固定搭配，一个注意，一个不理睬

Li Na K Rb Cs Ca Sr，Ba 这些极活泼的金属

O2性质很活泼，除了铂，金等不活泼金属，其它金属都能反应
活泼金属Na，Mg，Al等都常温能化合，Fe，Cu等加热化合
非金属除了稀有气体，其它在一定条件下基本能反应，比如F2，用液态空气冷却F2和O2的混合气体,并且通电,可以得到桔黄色的O2F2晶体(熔点-165度),只在低于-95度时,O2F2才稳定 比如N2，需放电
以后慢慢会知道的

1.A
主谓一致,主语应为单数或不可数
2.B
词义使然
3.C
我也不清楚...可能是词组
不过practice可以引申为实际应用
4.D
have troble/difficulty in doing固定,且不可数
work被written by these famous writers修饰,当"文章"讲应可数
5.D
of+名词性词语
名词前形容词性修饰
6.B
pay attention to 固定搭配,就够做这题了
后空也是一样
`
学英语也靠"公式",像语法和固定搭配
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判断先与水反应,靠金属活动性顺序
(Cs,Rb,Ba)K,Ca,Na,Mg,Al
中学就这么多,其中Mg和热水反应明显,Al和热水微弱反应,到此为止