【題目】根據(jù)短文內(nèi)容, 從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。How teens can stay fit
Any type of regular, physical activity can improve your fitness and your health.
Exercise should be a regular part of your day, like brushing your teeth, eating and sleeping. It can be in gym class, joining a sports team, or working out on your own. Keep the following tips in mind:
A good attitude is important. Find an activity that you think is fun. You are more likely to stick with it if you choose something you like. A lot of people find it's more fun to exercise with someone else, so see if you can find a friend or family member to be active with you.
Take it one step at a time. For example, walk or ride your bike to school. Get on or off the bus several blocks away and walk the rest of the way. Use the stairs instead of taking the elevator.
Get your heart pumping. Whatever you choose, make sure it includes aerobic (有氧的) activity that makes you breathe harder and increases your heart rate. This is the best type of exercise because it increases your fitness level and makes your heart work better. Examples of aerobic activities are basketball, running, or swimming.
Don't forget to warm up with some easy exercises or stretching (拉伸) before you do any physical activity. It is also important to stretch out after you exercise to cool down your muscles.
A. Do the activity as often as possible, but don't exercise to the point of pain.
B. The most important thing is that you keep moving!
C. Make physical activity a habit.
D. Small changes can add up to better fitness.
E. Stay positive and have fun.
F. This warms your muscles up and may help protect against injury.
G. It also burns off body fat.

【答案】B；E；D；G；F
【解析】本文介紹了鍛煉的重要以及怎樣堅(jiān)持鍛煉。

⑴B 考查上下文理解。選項(xiàng)中The most important thing 與上一句中的any type of activity相對(duì)應(yīng)，故B合適。

⑵E 考查上下文理解。保持積極的態(tài)度并享受樂趣，選項(xiàng)中positive和fun與后面的attitude,fun相對(duì)應(yīng)，故選E。

⑶D 考查上下文理解。一次改變一點(diǎn)，選項(xiàng)中的small change與文中one step at a time對(duì)應(yīng)，故選D。

⑷G考查上下文理解。承接上文有氧運(yùn)動(dòng)可以增強(qiáng)心臟功能，提高健身效果，還能燃燒脂肪，故選G。

⑸F考查上下文理解。該處講鍛煉前的熱身可以讓身體暖起來，避免運(yùn)動(dòng)受傷，F(xiàn)項(xiàng)符合。

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