题目

根据短文内容, 从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Why Do Dogs Roll In The Grass? If your dog is anything like mine, she loves rolling around in a patch of grass any chance she gets. And it always cracks me up to watch my dog, Nala, have the time of her life. Is she cooling off? Is she just super happy? What could it be? Here are some of the most common explanations behind this behavior. It's important to remember how incredibly powerful your dog's nose is. They are picking up on hundreds of subtle scents that we can't even comprehend! Sometimes they want to enjoy a scent（气味） they've found in the grass and will roll around in it to do just that. She's cooling off. It might even be a little wet from a sprinkler-the perfect place for your dog to cool off in. She's covering up her own scent. There's another smelly reason why your pup may be rolling around in that patch of grass. Some experts hold the view that dogs may roll in grass to cover their own scent. She's scratching an itch. It's good to rule out any allergies and make sure your dog isn't rolling a ton to scratch a constantly itchy（发痒的） back or side, but otherwise, it's probably normal that she's having a good time. I'm not sure about you, but now I'm even thinking about joining mine next time. A. She's having fun. B. She's enjoying a smell. C. But I've always wondered why she actually does it. D. If it's a particularly hot day, that grass may look extra appealing to your dog. E. It is not uncommon to see dogs rolling in the grass around particular times of year. F. In other words, they want to smell like the environment so they don't scare off prey （猎物）. G. If you notice your dog rolling around in the grass, it's probably just her having the best time ever. 答案：【1】C【2】B【3】D【4】F【5】G

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