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增加:在缺词处加一个漏字符号(Ʌ),并在其下面写出该加的词。
删除:把多余的词用斜线( \)划掉。
修改:在错的词下划横线，并在该词下面写出 修改后的词。
注意:1.每处错误及其修改均仅限词;
2.只允许修改10处，多者(从第11处起)不计分。
Last Friday morning, hardly had I reached school while my attention was caught by a big poster on the notice board, saying that it would be the World Earth Day in a few of days.
Responding active to this, my classmates set to work immediately. In the afternoon, we brought to school what they thought to be of little value. Use scissors and paste, we made shopping bag and artworks out of them. After school, we went to the local community and launched a campaign, giving up what we had made and calling on people to make best of what they thought to be useless. Meanwhile, we hold a lecture in the community to raise people' s awareness of protecting the earth. We had a busy but meaning time.
同类型试题
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
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
