2024届高考英语阅读理解五步法专项带练(12）讲义

1、 说明文（用时：7mins） ①In the northeastern India, within sight of the India-Bangladesh border, bridges aren?t built一they’re grown. There it is rainy and warm, and the area is marked with many rivers and mountain streams. There a species of Indian rubber tree with a very strong root system grows well. ②The rubber tree called Ficus elastica produces a series of secondary roots from higher up its trunk and they can comfortably rest on the top of huge stones along the riverbanks, or even in the middle of the rivers themselves. The War-Khasis and War-Jaintias, two closely related tribes（部落）in Meghalaya, long ago noticed this tree and saw in its powerful roots an opportunity to easily cross the areals rivers. Now， whenever and wherever the bridges are in need, they^ll simply grow their bridges. ③To make a rubber tree^s roots grow in the right direction一say，over a river一the people of southern Meghalaya have used several different ways ・ In some places like around the 34 ④village of Nongriat, betel nut （槟根P） tree trunks 9 cut in half down the middle and made empty inside, are used to create root-guidance systems. The thin, tender roots of the rubber tree grow straight along the trunks and when they reach the other side of the river, they^re allowed to take root in the soil. Given enough time, a living bridge comes into being. ⑤The root bridges can grow as long as the tree remains healthy. Though they can take many years to begin working, the length of time is dependent on local conditions such as the health of the tree the way the bridge is being grown, and the soil conditions. However,once root bridges grow up, they actually gain strength over time一strong enough that some can even support the weight of 50 or more people at a time. 1.Why are there many root bridges in the northeastern India? A.Local people are very clever. B.Local governments support it. C.There are some rivers and hills. D.There is a special kind of rubber tree. 2.In Nongriat, people use betel nut tree trunks