ate access tosafe ---------- (59)water and sanitation(卫生设备)，insect’borne diseases，airpollution，chemical hazards and injuries from traffic.falls burns anddrownings.
communities around the world organized events to promoteawareness of children’s health issues ---------- (60)included drawing contestsfor schoolchildren in vietnam street plays in india，puppet(木偶)shows in namibiaand professional lectures for policy makers in germany andelsewhere.
activities also took---------- (61)in cities across canada onmonday.including calgary，montreal，halifax and ottawa.
although childrenunder five represent only 1 0 per cent of the world’s population， they bear 40per cent of the global disease---------- (62)，says the who.and as much asone—third of the total burden of disease may be caused by environmental---------- (63)
world health day has been celebrated on april 7th---------- (64)1 950.each year the who chooses a theme to highlight areas ofparticular concern.last year’s ---------- (65)，move for health.focuses onpromoting physical activity as part of healthy living.
51. a.by b. to c.on d.at
52. a. environments b. foods c.colors d.drinks
53. a. laces b.chances c.times d.posts
54. a.stay b. pick c.grow d.get
55. a.our b. yourc.his d.their
56. a.hands b. arms c.hopes d.happiness
57. a.run b.reduce c.take d.regard
58. a.accepted b. stated c.reached d.faced
59. a.drinking b. spraying c.splashing d.working
60. a.that b. what c.which dsome
61. a.way b. order c.route d.place
62. a.burden b. penalty csuffering d.difficulty
63. a.reasons b. courses c.facts d.factors
64. a.after b. since c.in d.from
65. a.concern b. area c.theme d.celebration
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