The right pair of exercise shoes can do a lot to prevent discomfort and injuries, personal trainers say．Here are some shopping tips:
小题1: Depending on your workout, shoes designed for walking, running, tennis, cross-training or another specialty will provide the best support for your feet．
Shop when you normally exercise．Feet actually get bigger throughout the day, sometimes swelling up as much as a half-size by nighttime． 小题2:
Try them on．Never grab a pair of exercise shoes based only on the size of footwear you normally buy．Bring the type of socks you’d wear to work out and go for a walk through the store．
小题3: You should be able to spread your toes out comfortably．Make sure there’s about a half-inch of space between them and the front of the shoe．The back should fit snugly (warmly and comfortably) against your heel and not move up and down．If your feet are different sizes, buy based on the larger one．
Talk to an expert．Shoe salesmen and personal trainers can study your stride (步伐) and the shape of your feet． 小题4:
小题5: Many trainers recommend switching footwear every three to five months, if possible, to maintain（保持）proper cushioning and support．One tip: if you have to tie your shoes very tightly to feel a good amount of support, they may be ready to go．
A．Think about how much you can afford to buy the workout shoes．
B．Consider your type of exercise．
C．Focus on fit．
D．So don’t shop first thing in the morning if you often work out in the evening．E．Pay more attention to new style shoes
F．Replace worn shoes regularly．
G．Usually they can recommend the best shoes to guard against injuries．
小题1:B
小题2:D
小题3:C
小题4:G
小题5:F
题目分析：本文叙述了给经常运动的人买鞋时的一些建议。一是考虑你锻炼的形式，根据它来确定买什么样的鞋。二是要在锻炼后买鞋。三是关注鞋的尺寸是否合适。四是要经常换鞋，买新鞋。
小题1:根据Depending on your workout, shoes designed for walking, running, tennis, cross-training or another specialty will provide the best support for your feet．这是对锻炼形式的举例，考虑一下锻炼的形式，故选B。
小题2:根据Feet actually get bigger throughout the day, sometimes swelling up as much as a half-size by nighttime．因为锻炼后脚可能会比平常的脚大，所以如果你晚上锻炼的话，不要早晨去买鞋，故选D。
小题3:根据Make sure there’s about a half-inch of space between them and the front of the shoe．The back should fit snugly (warmly and comfortably) against your heel and not move up and down．这里叙述了鞋的尺寸，前面要留出半英寸，后跟处不能磨脚，所以要注意鞋的尺寸，故选C。
小题4:根据Shoe salesmen and personal trainers can study your stride (步伐) and the shape of your feet．售货员和个人的教练会研究你的步伐和你的脚的形状，他们通常给出你最好的建议来防止你的脚受伤，故选G。
小题5:根据Many trainers recommend switching footwear every three to five months,要每隔两至五个月就要换鞋，故选F。
点评：理清句际间意义的关系 文章的内容是根据各层各段的大意有机地组合而成，各个层次，各个段落之间不管怎样错落有致，但它所表达的内容都是要围绕中心的，各句之间都有一定的语脉，从逻辑意义上来看，语段的句际关系可分为平列、顺序、层递、转折、总分、解释、因果等关系。构成语段的各个句子之间有时可以包含一种以上的句际关系。因此，理解阅读材料时一定要把握语脉，理清句际间的关系，进而理解语段或全文的内容。