1.选择题- (共6题)
1.已知向量 {#mathml#}{#/mathml#} , {#mathml#}{#/mathml#} 的夹角为60°,| {#mathml#}{#/mathml#} |=1,| {#mathml#}{#/mathml#} |=3,则|5 {#mathml#}{#/mathml#} ﹣ {#mathml#}{#/mathml#} |={#blank#}1{#/blank#}.
4.已知函数f(x)=ex﹣ax﹣1﹣ {#mathml#}{#/mathml#} ,x∈R.
(Ⅰ)若a= {#mathml#}{#/mathml#} ,求函数f(x)的单调区间;
(Ⅱ)若对任意x≥0都有f(x)≥0恒成立,求实数a的取值范围;
(Ⅲ)设函数F(x)=f(x)+f(﹣x)+2+x2,求证:F(1)•F(2)…F(n)>(en+1+2) {#mathml#}{#/mathml#} (n∈N*).
5.已知函数f(x)=ex﹣ax﹣1﹣ {#mathml#}{#/mathml#} ,x∈R.
(Ⅰ)若a= {#mathml#}{#/mathml#} ,求函数f(x)的单调区间;
(Ⅱ)若对任意x≥0都有f(x)≥0恒成立,求实数a的取值范围;
(Ⅲ)设函数F(x)=f(x)+f(﹣x)+2+x2,求证:F(1)•F(2)…F(n)>(en+1+2) {#mathml#}{#/mathml#} (n∈N*).
2.单项选择- (共11题)
7.
________ is mentioned above that the number of the students in senior high school is increasing.
A.Which | B.It | C.That | D.As |
8.
Surely the day you are informed of your being admitted to a famous key university will be ________ of joy and celebration for your family, relatives and friends.
A.that | B.the one | C.one | D.those |
9.
My teacher praised me for _____ progress I’d made, which was ____ great encouragement to me.
A.a; the | B./; a | C.the; a | D./; / |
10.
—Would you like to go to the shopping mall with me tonight?
—I’d like to, but I have to attend a lecture _______ in the school library.
—I’d like to, but I have to attend a lecture _______ in the school library.
A.given | B.being given | C.having been given | D.to be given |
11.
________ at the golden belt of Yangtze River Delta, Ma'anshan is the National Garden city _______ wonderful landscape appeals to many visitors every year.
A.Located; which | B.Locating; which | C.Located; whose | D.Locating; whose |
12.
If you’re in Florence, Italy and see a man on a ladder ________ the dust off statues and buildings, don’t worry. It’s just Alessandro Ricci ________ material for his famous smog painting.
A.wipe; accumulating | B.to wipe; to accumulate | C.wiping; gathering | D.wipes; to gather |
13.
When a customer withdraws money from the bank, it is required to leave his signature. But how can we be sure it is_______?
A.absolute | B.alternative | C.academic | D.authentic |
14.
Considering the time limits, we also provide CDs ________ our students may prefer to study at home.
A.so that | B.so long as | C.in case | D.as if |
15.
I don’t smoke now, but I _______ for more than twenty years.
A.smoked | B.was smoking | C.have smoked | D.had smoked |
16.
Wow, you are in high spirits. _________ makes you so happy?
A.What it is that | B.What is it that | C.What is that | D.What it that |
试卷分析
-
【1】题量占比
选择题:(6道)
单项选择:(11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:0
5星难题:0
6星难题:11
7星难题:0
8星难题:0
9星难题:0