1.选择题- (共6题)
1.已知S1=x,S2=3S1﹣2,S3=3S2﹣2,S4=3S3﹣2,…,S2017=3S2016﹣2,则S3用含x的代数式表示为S3={#blank#}1{#/blank#};S2017={#blank#}2{#/blank#}.(结果用含x的代数式表示).
2.已知S1=x,S2=3S1﹣2,S3=3S2﹣2,S4=3S3﹣2,…,S2017=3S2016﹣2,则S3用含x的代数式表示为S3={#blank#}1{#/blank#};S2017={#blank#}2{#/blank#}.(结果用含x的代数式表示).
3.有这么一个数字游戏:
第一步:取一个自然数n1=5,计算n12+1得a1;
第二步:算出a1的各位数字之和,得n2,计算n22+1得a2;
第三步:算出a2的各位数字之和,得n3,再计算n32+1得a3,….
依此类推,则a2016={#blank#}1{#/blank#}.
4.观察下列各数:﹣ {#mathml#}{#/mathml#} , {#mathml#}{#/mathml#} ,﹣ {#mathml#}{#/mathml#} , {#mathml#}{#/mathml#} ,﹣ {#mathml#}{#/mathml#} ,…,根据它们的排列规律写出第2015个数为{#blank#}1{#/blank#}.
5.已知整数a1,a2,a3,a4,…满足下列条件:a1=0,a2=﹣|a1+1|,a3=﹣|a2+2|,a4=﹣|a3+3|,…,依此类推,则a2016的值为{#blank#}1{#/blank#}.
6.a是不为1的有理数,我们把 {#mathml#}{#/mathml#} 称为a的差倒数.如:2的差倒数是 {#mathml#}{#/mathml#} =﹣1,﹣1的差倒数是 {#mathml#}{#/mathml#} = {#mathml#}{#/mathml#} .已知a1=﹣ {#mathml#}{#/mathml#} ,a2是a1的差倒数,a3是a2的差倒数,a4是a3的差倒数,…,依此类推,则a2015={#blank#}1{#/blank#}.
2.单项选择- (共8题)
7.
There was a lot of fun at yesterday's party. You ________ come,and what a pity!
A.might have | B.should have | C.could have | D.would have |
8.
Ted told his father he ______ his homework three hours before.
A.finished | B.has finished | C.was finishing | D.had finished |
9.
A park will be built ________ those who died in the big natural disaster in the city.
A.in favor of | B.in face of | C.in honour of | D.in search of |
10.
The lady insisted that the young man ____her wallet and____to the police station at once.
A.had stolen; be sent | B.should steal; sent |
C.has stolen; sending | D.steal; had been sent |
11.
Someone called me up in the middle of the night,but they hung up________I could answer the phone.
A.since | B.until |
C.before | D.as |
12.
The child asked his mother go out to play tennis.
A.that he could | B.if he could | C.whether could he | D.that if he could |
试卷分析
-
【1】题量占比
选择题:(6道)
单项选择:(8道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:1
5星难题:0
6星难题:7
7星难题:0
8星难题:0
9星难题:0