学进去-教育应平等而普惠
试题
类型:完型填空
难度系数:0.40
所属科目:初中英语
阅读短文,掌握其大意,然后从A、B、C、D中选出可以填入空白处的最佳选项。

Hello, I’m a Yangtze finless porpoise(长江江豚). The Yangtze River is ________ only home.

My family was once nearly dying out(灭绝). People ________ a lot of fish in the river and made the water dirty. ________ we didn’t get enough food to eat and had no safe place to live. The river got “________”, and the life there was in danger. In 2017, there were ________ 1,012 of us, even fewer than pandas!

Luckily, the government(政府)________ this, and did some things to protect the river. Over these years, big ________ have happened to my home. Some factories ________ far away from the river, and they couldn’t discharge(排放)their litter into the water. The fishermen also stopped fishing. So my home started to get ________.

My family is also ________. I’ve got a few younger brothers and sisters! We sometimes jump in the air and say hello to people!

1.
A.hisB.herC.itsD.my
2.
A.caughtB.foundC.sentD.saved
3.
A.ForB.SoC.ButD.Or
4.
A.warmB.clearC.strongD.ill
5.
A.alsoB.neverC.onlyD.still
6.
A.noticedB.metC.lostD.won
7.
A.lessonsB.mistakesC.secretsD.changes
8.
A.pulledB.visitedC.movedD.stopped
9.
A.largerB.butterC.richerD.longer
10.
A.tryingB.movingC.growingD.living
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y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

用户名称
2019-09-19

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

用户名称
2019-09-19
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