高考英语阅读之日常生活类特训(一)S om e ti m e s p eople ca ll e ach o th er “scare dy-ca t”, but have you e v er thoug h t about th i s exp r es si on
When a c at is fr ight e ne d, i t s h e art starts be a ting fa ster, i t s muscles get tens e, and there a r e cha n ges in t h e chem ic al s in its blo od-stream、 Although t he ca t doe sn’t r e al i ze t hi s, it s bo d y i s g ett in g ready fo r act i o n、 If th e d a ng e r cont in ue s, thi s anima l will do one of the t wo things、 It wil l def e n d i ts el f, o r i t will ru n a w ay a s f as t as i t c a n、 S om eth i ng l i k e this also happens to peo p le、 Whe n w e are e x c ite d, angry, sc are d, o r a roused by other e mo tions, o ur bodies go t hrough man y phys i cal cha nges、 Ou r heart s beat fa s t er, and o u r muscl e s ge t t e