【正文】 Let me give her the bag. Then the old man throws the bag out of the bus window.s for a woman. She goes to buy some bananas，says the young man. Is this seat empty？asks the old man. It39?！军c評】段落的概括，細節(jié)分析。不久,寒冷的空氣不能容納所有水蒸氣,所以它開始變成小水滴,變成云。水汽凝結后形成云。文章最后一段的大意：在罐子里形成的云!罐子底部的一些熱水變成了熱水蒸汽（蒸汽）。the result of the experiment實驗的結果。 importance of the experiment實驗的重要性。A 。在罐子底部只留下一兩英寸。故選B。t reach out and touch the clouds, but you can make your own in a ,但是你可以用瓶子自己做。D.the result of the experimentB.the importance of the experimentCrayons.（3）The main purpose of the last paragraph is to show Ice.A strainer.A jar.D.what makes a cloudC.the weight of a cloud A cloud formed in the jar! Some of the hot water at the bottom of the jar turned into hot water vapor（蒸汽）. The water vapor rose and met with the cold air ing off the ice. When the water vapor condensed, it formed a cloud. Hot air rises and carries with it lots of water vapor, the higher the air rises, the more it cools down. Soon the cold air can39。s your turn, put the strainer over the mouth of the jar, fill the strainer with ice. Watch the jar. Step1. Have your helper fill the jar with hot water, leave it there for two minutes, then pour out most of the water. Leaving just an inch or two at the bottom of the jar.* ice * a metal strainer（過濾器） * an adult helpert reach out and touch the clouds, but you can make your own in a bottle.Look up in the sky. Do you see any clouds? What do they look like? Some clouds are fluffy（絨毛狀的） and white, like cotton balls. Others are dark almost black, and make you hold an umbrella. At sunrise and sunset, clouds can look red, purple, or yellowas if they were colored with crayons. But what are clouds anyway?2．根據(jù)材料內容，選擇正確答案。 【點評】考查閱讀理解。根據(jù) For me, the best things about London are the parks. There are five in the city center. 可知在城市里有5個公園。根據(jù) Over one million people use the London underground every day 有一百多萬人每天用倫敦地鐵可知，故選D。可知與街道對比，應該是指的交通工具地鐵，故選D。根據(jù) London has problems with traffic（交通 ）and pollution（污染） which stop the city from developing. Over one million people use the London underground every day, but there are still too many cars on the 。故選B。 （1）細節(jié)題。There are five parks in the city center.D.The air before was much cleaner than it is now.B.Over 100, 000.D.Over half of its population.B.D.C.B.s the Chinese meaning for “underground” in the passage? A.D.In 1950.B.In 1750. For me, the best things about London are the parks. There are five in the city center. But my children39。 London is famous for many things. Tourists （游客）ing from all over the world go to visit its famous buildings, for example, Big Ben. Like many other big cities, London has problems with traffic（交通 ）and pollution（污染） which stop the city from developing. Over one million people use the London underground every day, but there are still too many cars on the streets. The air isn39?！居⒄Z】七年級英語下冊閱讀理解知識點總結和題型總結經典1一、七年級英語下冊閱讀理解專項目練習（含答案解析）1．閱讀理解 London has a population of over 7, 000, 000. From about the year 1800 until World War Ⅱ, London was the biggest city in the world. But now there are many cities which are much bigger than it. t clear, but it is anyhow cleaner than it was 100 years ago. s favorite place is Hamleys, the biggest toy shop in the world. （1）When was London the biggest city in the world? A.In 1850.C.In the 21st century.（2）What39。隧道地下通道地鐵（3）How many people use the London underground every day? A.Over three quarters of its population.C.Over 1, 000, 000.（4）Which of the following is TRUE? A.“I” like Hamleys best.C.“My” son likes Big Ben very much.【答案】 （1）B（2）D（3）D（4）C 【解析】【分析】文章大意：本文介紹了倫敦的名勝和倫敦存在的問題。根據(jù) From about the year 1800 until World War Ⅱ, London was the biggest city in the world. But now there are many cities which are much bigger than 。 （2）詞義猜測題。又有一百多萬人每天用——，但是在街道里仍然太多的轎車。 （3）細節(jié)題。 （4）細節(jié)題。故選C。本文涉及細節(jié)題和詞義猜測題，細節(jié)題注意從文中找答案；詞義猜測題需要聯(lián)系上下文，推斷出詞義。D You can39。 You need * a huge, empty glass jar * hot water Do these Step2. It39。 What happened?t hold all the water vapor so it starts turning into tiny water drops, and bees a cloud.（1）This t