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1、完形填空。
No air, no life. We cannot see air, but there is air all around us and it 1 life to every living thing. We cannot live without it. Bad air makes people sick. We must have clean air to keep us in good 2 .
In the city there are too many cars 3 on the street. That makes air dirty. Every day we take in dirty air. This makes 4 feel sick.
The black smoke is usually from many factories. This is very bad 5 our body. So in order to get some fresh air, we should plant more trees.
(1)A 、 gives B 、 giving C 、 gave(2)A 、 health B 、 healthy C 、 unhealthy(3)A 、 run B 、 to run C 、 running(4)A 、 we B 、 us C 、 our(5)A 、 for B 、 to C 、 with -
2、 We get wood from trees.A、sell B、buy C、take
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3、 They recycle glass and paper to keep the Earth clean.A、kill B、reuse C、throw
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4、 There are a lot of trees in the park.A、many B、some C、a little
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5、I miss you so much.A、like to buy B、forget C、want to see
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6、 Air is important. It keeps us alive.A、makes us healthy B、makes us live C、makes us happy
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7、The workers (cut) down too many trees yesterday.
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8、 There (be) some clean rivers in our city five years ago.
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9、 Last month, my family (visit) a forest and saw many tall trees.
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10、 Trees can (cool) the air, so we should plant more of them.
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11、 My mother (not throw) rubbish into rivers last week.
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12、 The largest area covered (覆盖面积最大的) on Earth is ____.A、forests B、oceans C、land
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13、 In China, Tree Planting Day is on ____.A、12th May B、22nd May C、12th March
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14、 We plant trees every year ____ we want to keep the air fresh.A、because B、so C、but
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15、 The smoke from cars ____ the air dirty.A、make B、makes C、making
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16、 We should stop ____ rubbish into rivers.A、throw B、to throw C、throwing
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17、 We use wood ____ make pencils.A、to B、for C、from
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18、 We get a lot of things ____ trees.A、to B、from C、for
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19、 Trees can keep the air ____.A、cleanly B、cleans C、clean
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20、 Some workers ____ the tree down last week.A、cut B、to cut C、cutting