课时练1　阅读理解提速练
[学生用书P348(单独成册)]
阅读理解
A
(2019·陕西检测二)Whenever I hear a recording of John Denver singing “Sunshine on My Shoulders”， I find myself smiling, drawn to a love of the sun and the outdoors I’ve had for years as a Michigan native. Walking barefoot to the lake, playing without shirts in the sunlight, and breathing fresh air feel good. As a doctor I can tell you they are also good for your heart.
Studies have found higher rates of high blood pressure among people with the lowest sun exposure. One reason may be due to nitric oxide(一氧化氮), a gas whose function is activated when your skin is exposed to the sun’s rays. It reduces both heart attack and stroke risks. Vitamin D, which sunlight helps your body produce, is also linked to better health. So walk outdoors for 15 to 30 minutes daily.
In Japan, walking through forests to keep healthy has become a popular practice. Apparently they want to enjoy the fresh air. But research on 280 volunteers found that people had a reduced heart rate, and lower blood pressure when they walked through a forest than when they spent time in an urban area.
One of the consequences of modern society is that rarely is our body in direct contact with the ground. The earth has an electrical current. Direct contact with it may be stabilizing force for good health. Although “earthing” or “grounding” is considered alternative by mainstream medicine, research shows that the practice seems to be able to reduce heart disease risks.
So, walk around barefoot wherever possible, let your backyard grass tickle your feet, and dig your toes into sandy beaches.
【解题导语】　本文是一篇议论文。作者通过叙述自己的经历、感受和一些研究发现，告诉人们户外活动有益于心脏。
1．The first paragraph is meant to ________．
A．show the author likes the song very much
B．put forward the argument of the passage
C．suggest that the author loves nature crazily
D．indicate the author is a Michigan native
B　解析：推理判断题。根据第一段的描述可知，作者写这段的目的是提出文章的论点。
2．Sunbathing’s good for heart because ________．
A．the sun’s rays make nitric oxide work
B．sunlight can help people keep warm
C．the sun’s rays can help replace vitamin D
D．vitamin D reduces blood circulation
A　解析：推理判断题。根据第二段中的“One reason may be due to nitric oxide(一氧化氮), a gas whose function is activated when your skin is exposed to the sun’s rays. It reduces both heart attack and stroke risks.”描述可推知，日光浴对心脏有好处是因为阳光能使一氧化氮工作。
3．It’s believed that walking through forests can ________．
A．make people popular
B．help breathe in fresh air
C．reduce blood pressure
D．help escape noisy cities
C　解析：细节理解题。根据第三段的“But research on 280 volunteers found that people had a reduced heart rate, and lower blood pressure when they walked through a forest than when they spent time in an urban area.”描述可知，人们普遍认为穿过森林可以降低血压。
4．The best title of the passage should be ________．
A．Nitric Oxide Has Magic Functions
B．Walking Barefoot Builds the Body
C．Sunbathing Is Good for Health
D．Outdoor Activities Benefit the Heart
D　解析：标题归纳题。根据全文内容大一java期末考试题及答案，尤其是第一段中的“for your heart.”及最后一段可知，这篇文章的主旨是户外活动有益于心脏。
B
(2019·长郡中学新高三实验班选拔考试)While beach vacations may be a great way to take your mind off work，lakes surrounded by mountains make for an even grander experience.If you are looking for peace on your vacation，we have some recommendations for you in the Caucasus(高加索)．
Lake Sevan
Lake Sevan is situated in the central part of Armenia，in the Gegharkunik Province.It is the largest lake in Armenia，located 6，234ft above sea level.Along the lake shore，there are various accommodations such as resorts and hotels with plenty of activities to partake such as windsurfing，swimming and sunbathing.While there，do not forget to visit one of the famous cultural monuments，the Sevanavank monastery，and it offers a great view of the lake as well.
Paravani Lake
Paravani Lake，located 6，801ft above sea level，is in the south of Georgia，near the Javakheti Plateau.At this level，altitude sickness can occur and it is a good idea to be prepared to adapt to it properly，or bring medication for altitude sickness.Being a volcanic lake makes for a more interesting experience.The lake is best known for fishing.Do not come home during the winter months when the lake freezes.
Lake Cildir
Lake Cildir is located in the Ardahan Province，east Turkey，near the borders with Georgia and Armenia.It is a large freshwater lake of eastern Turkey，and many tourists are not aware of this beautiful attraction.Lake Cildir is surrounded by mountains of the Caucasus.The lake freezes during late November.If the winter is not extremely cold，you can try some lake activities like ice skating and ice fishing.