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Unit 2 Plant a Plant课时滚动训练Lessons 1012.连词成句将所给词语连成句子，标点已给出，词语不得重复使用。1made, scarf, her, is, of, cotton_?2plants, keep, need, water, to, healthy_.3draw, plant, please, the, a, picture, of_.4plants, what, you, kinds, of, did, grow_?5we, keep, should, away, dangerous, children, animals, from_.完形填空We know that trees are useful in our everyday life. They _1_ us many things, such as wood, oxygen, rubber, medicines and many other things. They can _2_ tell us a lot about our climate. The following are the reasons. If you _3_a tree, you can see that it has many rings(年轮). Most trees grow one new ring _4_ year. Because of this reason, we know _5_ a tree is. A tree over a hundred years old means that it has more than a hundred _6_. When the climate is dry or very cold, the trees do not grow very much and their rings are usually _7_. When it is wet and warm, the rings are much thicker. If the rings are suddenly very thin or suddenly very thick, this means that the _8_ changed suddenly. If we look at the rings on this tree, we can learn _9_ the climate for a hundred years. We can see _10_ our climate is changing today. ()1.A. tellBaskCgiveDget ()2.A. not Btoo Cto Dalso ()3.A. cut down Bclimb upCwalk past Dlook at ()4.A. many BeveryCthe first Dfrom ()5.A. how big Bhow longChow old Dhow much ()6.A. trees BleavesCpeople Drings ()7.A. big BthinCsmall Dthick ()8.A. climate BtreesCthings Danimal()9.A. for BtoCabout Dfrom()10.A. how BwhyCwhen Dwhile .阅读理解Rafflesia arnoldii(大王花)People discovered this flower in Sumatra(苏门答腊) in 1822, and it is considered to be the largest flower in the world. It can grow up to one metre in diametre (直径), and weigh as much as 25 pounds. Though Rafflesia arnoldii is a large flower, it is very difficult to find. It takes 9 to 21 months for the plant to develop, but its flower lasts for a_maximum_of five days. The flower can reach up to 20 feet tall and 16 feet wide, but it smells awful.Dancing plant(跳舞草)Have you ever watched a plant move all by itself? The “dancing plant”， also known as the telegraph plant, actually moves its leaves. It can grow up to 2 metres high.The period(一段时间) of its movements is from 3 to 5 minutes, and when all of the leaves move at once, it creates a very cool effect. The plant lives in Asia but can also be found in the South Pacific. It is pretty wonderful. This plant is famous for being a favourite of Charles Darwin, and it is important in his book The Power of Movement in Plants.()1.The underlined phrase “a maximum of” means “_” in Chinese.A. 最少B. 最低C. 最大D. 最多()2.How does Rafflesia arnoldii smell?A. Terrible. B. Fresh.C. Sweet. D. Wonderful.()3.How long can the dancing plant move?A. 12 months. B. 9 days.C. 7 to 10 minutes. D. 3 to 5 minutes.()4.Where can we find the dancing plant?A. In the North Pacific. B. In Canada.C. In Asia.D. In America.()5.Which of the following is NOT true?A. The weight of Rafflesia arnoldii can reach 25 pounds.BWhen the dancing plant dances, it actually moves its stem.CPeople found Rafflesia arnoldii in Sumatra.DCharles Darwin wrote the book The Power of Movement in Plants.详解详析.1.Is her scarf made of cotton2Plants need water to keep healthy3Please draw a picture of the plant 4What kinds of plants did you grow5We should keep children away from dangerous animals.15CDABC610DBACA.15DADCB
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