2021高三英语一轮复习每日一练19 单句改错+阅读理解(含解析)

1、练习19单句改错阅读理解.单句改错(定语从句和状语从句)1Before I could say anything, she smiled at me and said she wanted to take me to another place where was special to her._2But there are some among us which are ready to give up when they come to a hard example in mathematics._3The original hamburger can be traced back to

2、the middle ages, which Russians ate raw meat that was cut into small pieces and formed into a small round flat shape._4I led them to the nearby bus stop and told them to take Bus No. 305, that could take them there directly._5There was a time while misunderstanding occured between my friend and me,

3、and we quarreled terribly at that time._6He told me that my goldfish would die though they couldnt adapt to the environment in the wild._7I didnt begin to like our houseparents when something happened one night._8It is a long time since they separated, but it wont be long when they meet again._9He s

4、aid, “I was in the kitchen with my wife and children while we heard a loud noise.”_10You shouldnt spend your time in playing computer games even you have finished your homework._.阅读理解A2020湖南名校联考说明文295词You may have heard adults say they are uncomfortable in the morning without a cup of coffee. One re

5、ason they may feel that way is that coffee contains caffeine (咖啡因). Caffeine occurs naturally in coffee, tea, and cocoa beans, which are used to make chocolate. But now food makers are adding it to many products, from potato chips to water.The U. S. government is especially worried about the problem

6、. Thats why the Food and Drug Administration (FDA) is studying the health effects of caffeine on young people. Studies show that too much caffeine can make people nervous and unable to sleep. Whats more, caffeine is habitforming. Those who consume it regularly and stop suddenly may experience headac

7、hes and feel tired.One of the biggest concerns is the large amount of caffeine added to socalled energy drinks, like Red Bull. A 12ounce can of cola has about 35 milligrams of caffeine. A similar serving of Red Bull contains more than three times that amount.The Institute of Medicine is also working

8、 on caffeinesafety measures. “Teenagers should not drink beverages that contain caffeine. They should be aware of caffeines effects on health and on how the brain works. Take, for example, teenagers who consume caffeine to stay awake and study for a test. They will remember less of what they have ju

9、st studied，” said Stallings, a member of the institute.Companies that make products with added caffeine claim they do not advertise them to teenagers. However, there is no law to stop teenagers from buying them. So the FDA needs to set limits on caffeine, especially in energy drinks. As for added ca

10、ffeine in food, the government should just say no. If not, the amount of caffeine should be printed on food labels to remind consumers. The government must do that.Doctors say teenagers should avoid caffeine. If you need extra energy, try these natural boosters: eat right, exercise, and get plenty o

11、f sleep.1What is the US. government particularly concerned about?AThe fact that coffee contains caffeine. BThe practice of adding caffeine to food.CThe measures of avoiding caffeines effects. DThe practice of using caffeine to make chocolate.2Why is Red Bull mentioned in Paragraph 3?ATo show us caff

12、eines effects on health. BTo tell us about teenagers addiction to caffeine.CTo show a drink which contains much caffeine. DTo show peoples concern about teenagers health.3What is Paragraph 5 mainly about?AThe measures of protecting teenagers from caffeines effects.BThe process of the governments con

13、trolling the use of caffeine.CThe governments responsibility of taking care of teenagers.DThe risk of buying products containing caffeine nowadays.4The author may agree that _.Aheadaches and feeling tired are common in teenagersBfood makers add much caffeine to many products nowCcaffeine is good and

14、 useful for teenagers studyDgetting enough sleep can make people energeticB2020河南联盟调研说明文282词Sleeping in is one of the best parts of the weekend. After a long, exhausting work week, sometimes all you want to do is sleep. On_Friday_night,_you_slide_under_the_covers,_smiling_in_anticipation. Now you ca

15、n finally catch up on your sleep.Except you cant. When you open your eyes on Saturday morning, its still early. If this were a weekday, youd be up before your alarm goes off. So whats the deal?We hate to break it to you, but youve pretty much done this to yourself. Your body is very good at recognizing patterns and adjusting accordingly.