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| 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. Most trees grow one new ring __4__ year. Because of the 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 about the __9__ for a hundred years. We can see __10__ our climate is changing today. | |||
| ( ) 1.A.tell ( ) 2.A.not ( ) 3.A.cut across ( ) 4.A.every ( ) 5.A.how big ( ) 6.A.trees ( ) 7.A.big ( ) 8.A.climate ( ) 9.A.people ( ) 10.A.how |
B.ask B.too B.climb up B.many B.how long B.leaves B.thick B.trees B.things B.why |
C.give C.to C.walk past C.the first C.how old C.people C.small C.rings C.climate C.when |
D.get D.also D.look at D.from D.how much D.rings D.thin D.animals D.life D.while |
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| Having breakfast is a good way to keep healthy. 1 is not only the most important meal of the day, it is also the most neglected (被忽视). If breakfast doesn't appear (吸引) to you in the 2 , try eating a lighter dinner earlier in the 3 or save half your dinner for the breakfast in the morning. If you are not hungry in the morning, start 4 some thing small like juice or toast or have a nutritious (有营养的) mid-morning snack when you are hungry. Some people fear (担心) eating breakfast will make them 5 during the day and they will eat more. It is true because your body is working 6 . Although you may feel as if you are eating more all day long, actually you are not. Not eating breakfast can 7 cause you to overeat, which will put on your weight. 8 breakfast is the first and most important meal of the day, 9 the right food is important. If we choose the wrong food, we may become 10 . In a word, it is necessary for us to have a healthy breakfast. | |||
| ( ) 1. A. Breakfast ( ) 2. A. evening ( ) 3. A. morning ( ) 4. A. with ( ) 5. A. angrier ( ) 6. A. carefully ( ) 7. A. also ( ) 8. A. Though ( ) 9. A. having ( ) 10. A. sad |
B. Lunch B. night B. noon B. to B. hungrier B. happily B. too B. So B. choosing B. sick |
C. Dinner C. noon C. evening C. of C. sad C. wrongly C. yet C. Since C. taking C. angry |
D. Supper D. morning D. night D. for D. boring D. correctly D. as well D. If D. eating D. sorry |