阅读理解专题训练P eop le a re bu s y w o rki ng e very d ay。 T h ey d o not have enou gh time to do e x er c is e。 So m a n y people b ec o m e t o o f at or too t hin。 W e n e ed to do e xercise to keep fi t.Ther e a r e many k ind s o f exe r cis e. B e nding and stret c hing h elp s us m ove easi l y. Before we play ba l l gam e s o r swim, we s ha l l do bendin g and s t retc hi ng exe r c i se firs t. This kind of exercise is so m etimes calle d w a r m-up exe r cis e。 Run n i n g i s a l s o g o od exerc i se. I f we can n ot run f ast, w e can jog。 J o ggin g mea n s runnin g slowly。 Aga i n, before we run or jo g, w e mu s t d o s o me war m—up e xe rcise。 Also, we sh o uld not r u n or jog in bu sy street s。 It is not safe and the air th e re is often di r ty.( ) 1. makes man y pe o ple t o o fa t or to o t h i n.A. Ea ti n g too m uch B。 Dri n king to o muchC. H av in g n o ti me to do exercise D。 D oi ng t o o m uc h exerc is e( ) 2。 B e f ore we p l a y ba l l games, we m u s t f i rst.A。 s w im B。 r u n C. jog D. d o w a r m—up ex er c ise( ) 3. What does jogg i ng mean ?A. It me a ns b end i ng and stre t ching. B. I t means wa r m—u p e xe rci s e.C。 It me ans r u nning fast. D。 It means r un nin g s l owly。( ) 4。 Which of the followin g s en t ence s is RIGHT ?A。 People sh o u ld n't be busy w or k i n g. B. T...