1.选择题- (共8题)
5.可以证明可逆反应N2 + 3H2
2NH3已达到平衡状态的是( )
①一个N≡N断裂的同时,有3个H-H键断裂 ②一个N≡N键断裂的同时,有6个N-H键断裂 ③其它条件不变时,混合气体平均相对分子质量不再改变 ④保持其它条件不变时,体系压强不再改变 ⑤NH3%、N2%、H2%都不再改变 ⑥恒温恒容时,密度保持不⑦正反应速率v(H2) = 0.6mol/(L·min),逆反应速率v(NH3) = 0.4mol/(L·min)

①一个N≡N断裂的同时,有3个H-H键断裂 ②一个N≡N键断裂的同时,有6个N-H键断裂 ③其它条件不变时,混合气体平均相对分子质量不再改变 ④保持其它条件不变时,体系压强不再改变 ⑤NH3%、N2%、H2%都不再改变 ⑥恒温恒容时,密度保持不⑦正反应速率v(H2) = 0.6mol/(L·min),逆反应速率v(NH3) = 0.4mol/(L·min)
2.单项选择- (共11题)
9.
Throughout______ history, _________English language is made up of the rules each group of people brought to Britain with them.
A.the; the | B.不填; the |
C.the; 不填 | D.不填;不填 |
10.
---Are all telephone numbers_______ in the directory? --- Yes, all ________ Jane’s.
---Are all telephone numbers_______ in the directory? --- Yes, all ________ Jane’s.
A.listed; including | B.listed; included |
C.including; includes | D.being listed; including |
11.
He started to learn English in 1990 and in the years ________ he kept on using it in his work.
He started to learn English in 1990 and in the years ________ he kept on using it in his work.
A.following | B.followed | C.follow | D.that followed |
12.
She can’t help ______ for her family often, so she can’t help ______ why life is so hard.
She can’t help ______ for her family often, so she can’t help ______ why life is so hard.
A.working ; wondering | B.work ; wondering |
C.working ; wonder | D.to work ; to wonder |
13.
Why pleasant smells do not reduce pain in man is a question still _______ by scientists.
Why pleasant smells do not reduce pain in man is a question still _______ by scientists.
A.answered | B.being answered | C.to be answered | D.that answered |
15.
Henry VII set a standard for ______ people were to speak English.
Henry VII set a standard for ______ people were to speak English.
A.why | B.whether | C.when | D.how |
17.
I am told to guess the meaning of an unknown word, but my question is _______ I still can’t
understand its meaning.
I am told to guess the meaning of an unknown word, but my question is _______ I still can’t
understand its meaning.
A.that if | B.whether why | C.how if | D.what if |
18.
Can you tell me _________________ last night?
Can you tell me _________________ last night?
A.what was the matter outside | B.what was matter outside |
C.what the matter was outside | D.what is wrong outside |
试卷分析
-
【1】题量占比
选择题:(8道)
单项选择:(11道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:0
7星难题:0
8星难题:11
9星难题:0