1.单选题- (共5题)
2.选择题- (共13题)
—I _______ it on the desk when I came in.
leave, will, clean, smell, hardly |
A: Hello, Kate! You look so happy. What happened?
B: Hi, Paul. I've got good news for us!
A: What is it?
B: Our teacher said she {#blank#}1{#/blank#} take us to go on a school trip tomorrow.
A: Really? Where shall we go?
B: To the lake in the south of our town.
A: Oh, no. That's not a good place for a school trip.
B: Why do you say that?
A: Because the water in the lake {#blank#}2{#/blank#} terrible. I went there last weekend.
B: I can {#blank#}3{#/blank#} believe it. It used to be a beautiful place with flowers and grass, and the water in the lake was very {#blank#}4{#/blank#}.
A: But now everything has changed. There is only rubbish {#blank#}5{#/blank#}.
B: How terrible! Let's tell our teacher about it.
A: OK. Let's go.
3.填空题- (共7题)
4.解答题- (共5题)

(1)按下表已填写的形式填写表中的空格:
| 图① | 图② | 图③ |
三个角上三个数的积 | 1×(-1)×2=-2 | (-3)×(-4)×(-5)=-60 | |
三个角上三个数的和 | 1+(-1)+2=2 | (-3)+(-4)+(-5)=-12 | |
积与和的商 | -2÷2=-1 | | |
(2)请用你发现的规律求出图④中的数y和图⑤中的数x.
(1)在④和⑤后面的横线上分别写出相应的等式;
(2)根据上面算式的规律,请计算:1+3+5+…+199=________;

(3)请你用代数式表示出上面规律.
(1)写出第五个等式,并在右边给出的五个正方形上画出与之对应的图示;

(2)猜想并写出与第n个图形相对应的等式.

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【1】题量占比
单选题:(5道)
选择题:(13道)
填空题:(7道)
解答题:(5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:4
7星难题:0
8星难题:6
9星难题:7