五、阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。
主题群:自然生态 子主题:知识科普 语篇类型:说明文 难度:★★
Without the sun, no living things can live on the earth. 1.
The first one is that your body doesn't want to heat up. 3.
4.
And another reason is sunburn, which is your skin's way to fight against the UV light(紫外线) in the sunlight. 5.
As you can see, the sun is both your enemy and friend. Warming light is good for you, but tiredness shows that your body has too much sunlight in the day.
A. The second reason is lack of(缺乏) water.
B. When does the sun make you tired?
C. Why does the life-giving star make you tired?
D. The sun makes plants grow and produce food.
E. So it has to use a lot of energy to cool itself down.
F. As a form of protection, your skin turns red.
G. Many people enjoy spending a long time in the sun.
主题群:自然生态 子主题:知识科普 语篇类型:说明文 难度:★★
Without the sun, no living things can live on the earth. 1.
D
At the same time, it helps your body get vitamin(维生素) D. However, you may feel tired after spending long hours in the sun. 2. C
Here are some reasons to explain it.The first one is that your body doesn't want to heat up. 3.
E
If you feel too tired in the sun, it must be a sign that it's time to take a rest and cool down.4.
A
When you sweat(出汗) a lot, your body loses water. As a result, your blood becomes thicker, which makes it hard for your heart to send blood. And it means that less O₂ will be sent to your body. The low level of O₂ will make you feel even more tired. This is also why you should drink water after doing sports.And another reason is sunburn, which is your skin's way to fight against the UV light(紫外线) in the sunlight. 5.
F
And this tires your body. So, staying in the sun too long easily leads to tiredness.As you can see, the sun is both your enemy and friend. Warming light is good for you, but tiredness shows that your body has too much sunlight in the day.
A. The second reason is lack of(缺乏) water.
B. When does the sun make you tired?
C. Why does the life-giving star make you tired?
D. The sun makes plants grow and produce food.
E. So it has to use a lot of energy to cool itself down.
F. As a form of protection, your skin turns red.
G. Many people enjoy spending a long time in the sun.
答案
1. D 2. C 3. E 4. A 5. F
解析
【分析】
解答本题需采用七选五的解题方法,先通读全文把握主旨(太阳的益处及长时间晒太阳易疲劳的原因),再结合空格前后的语境、逻辑关系(并列、因果、总分、承上启下等)逐一匹配选项:1. 空格前后围绕太阳的益处展开,需选体现太阳作用的选项;2. 空格前提出“长时间晒太阳会累”,空格后引出原因,需选承上启下的问句;3. 空格前讲身体不想升温,空格后讲累与降温的关系,需选体现身体降温消耗能量的选项;4. 空格前是第一个原因,空格后讲出汗失水,需选引出第二个原因的选项;5. 空格前讲晒伤是皮肤对抗紫外线的方式,空格后讲晒伤导致疲劳,需选体现晒伤表现的选项。
【解析】
1. 空格前阐述太阳对生物的重要性,空格后说明太阳帮助人体获取维生素D,均为太阳的益处,D项“太阳让植物生长并产生食物”符合太阳的作用,故选D;
2. 空格前指出长时间晒太阳会让人疲劳,空格后引出相关原因,C项“为什么这个带来生命的星星会让你累?”承上启下,引出下文的原因分析,故选C;
3. 空格前说明第一个原因是身体不想升温,空格后提到疲劳是该休息降温的信号,E项“所以它必须消耗大量能量来降温”承接上文,解释身体因降温消耗能量导致疲劳,故选E;
4. 空格前提及“第一个原因”,空格后围绕出汗失水展开,A项“第二个原因是缺水”对应上文的“first one”,引出第二个原因,故选A;
5. 空格前说明晒伤是皮肤对抗紫外线的方式,空格后指出晒伤会让身体疲劳,F项“作为一种保护,你的皮肤变红”解释晒伤的具体表现,连接前后文,故选F。
【答案】
1.D 2.C 3.E 4.A 5.F
【知识点】
七选五阅读、语篇逻辑推理、说明文阅读
【点评】
本题为说明文类七选五,主题围绕太阳的作用及长时间晒太阳易疲劳的原因,解题需把握上下文的逻辑关联,难度适中,适合中等水平学生作答。
【难度系数】
0.5
解答本题需采用七选五的解题方法,先通读全文把握主旨(太阳的益处及长时间晒太阳易疲劳的原因),再结合空格前后的语境、逻辑关系(并列、因果、总分、承上启下等)逐一匹配选项:1. 空格前后围绕太阳的益处展开,需选体现太阳作用的选项;2. 空格前提出“长时间晒太阳会累”,空格后引出原因,需选承上启下的问句;3. 空格前讲身体不想升温,空格后讲累与降温的关系,需选体现身体降温消耗能量的选项;4. 空格前是第一个原因,空格后讲出汗失水,需选引出第二个原因的选项;5. 空格前讲晒伤是皮肤对抗紫外线的方式,空格后讲晒伤导致疲劳,需选体现晒伤表现的选项。
【解析】
1. 空格前阐述太阳对生物的重要性,空格后说明太阳帮助人体获取维生素D,均为太阳的益处,D项“太阳让植物生长并产生食物”符合太阳的作用,故选D;
2. 空格前指出长时间晒太阳会让人疲劳,空格后引出相关原因,C项“为什么这个带来生命的星星会让你累?”承上启下,引出下文的原因分析,故选C;
3. 空格前说明第一个原因是身体不想升温,空格后提到疲劳是该休息降温的信号,E项“所以它必须消耗大量能量来降温”承接上文,解释身体因降温消耗能量导致疲劳,故选E;
4. 空格前提及“第一个原因”,空格后围绕出汗失水展开,A项“第二个原因是缺水”对应上文的“first one”,引出第二个原因,故选A;
5. 空格前说明晒伤是皮肤对抗紫外线的方式,空格后指出晒伤会让身体疲劳,F项“作为一种保护,你的皮肤变红”解释晒伤的具体表现,连接前后文,故选F。
【答案】
1.D 2.C 3.E 4.A 5.F
【知识点】
七选五阅读、语篇逻辑推理、说明文阅读
【点评】
本题为说明文类七选五,主题围绕太阳的作用及长时间晒太阳易疲劳的原因,解题需把握上下文的逻辑关联,难度适中,适合中等水平学生作答。
【难度系数】
0.5
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