societies were often in danger of extinction because .A.only one in ten persons could live past 40.B.our ancestors had little enthusiasm for more childrenC.there was higher mortality than fertility in most placesD.it was too dangerous to have babies due to the poor conditions【小题4】The ...
One interesting custom in China is that mothers wrap up their babies tightly.This is not the custom in Western countries, where babies are dressed in loose garments. (1) It is true that customs ___. [ ] A. have been formed during a short time B. have been formed little by little...
she went out to an empty room and began to51. For the first two years, these paintings were either given away or sold52a little money. But at the age of seventy-nine, she was “discovered” by the53world—and the rest is54. She went on to produce more than two thousand paintings,...
Wecanbeginourdiscussionof“populationasglobalissue”withwhatmostpersonsmeanwhentheydiscuss“thepopulationproblem”:toomanypeopleonearthandatoorapidincreaseinthenumberaddedeachyear.Thefactsarenotindispute,Itwasquiterighttoemploytheanalogythatlikeneddemographicgrowthto“along,thinpowderfusethatburnssteadilyandhaltinglyuntil...
societies were often in danger of extinction because .A.only one in ten persons could live past 40.B.our ancestors had little enthusiasm for more childrenC.there was higher mortality than fertility in most placesD.it was too dangerous to have babies due to the poor conditions【小题4】 The...
本题是细节理解题,根据文章第二段第二行That’s because touching changes their genes (基因) and, even worse, can slow their growth和第六段第三行“If the touching is repeated, then plant growth is reduced by up to 30 percent.”可知,“触碰会降低植物生长能量从而减缓生长”故答案选B。
B. our ancestors had little enthusiasm for more children C. there was higher mortality than fertility in most places D. it was too dangerous to have babies due to the poor conditions 4. The author of the passage intends to . A. warn people against the population explosion in the near fut...
【答案】 【1】B 【2】A 【3】C 【4】C 【解析】 试题分析:文章讨论了现在人口增长过快,并解释了为什么古代人口少有增长,而近些年人口剧增。 【1】B考查推理判断题。根据第一段提到Itwasquiterighttocomparedemographicgrowthto"along,thinpowderfuse(导火线)thatbumssteadilyandhesitatinglyuntilitfinallyreachesthech...
One day not too long ago the employees of a large company in St .Louis, Missouri returned from their lunch break and were greeted with a sign on the front door. The sign said: “Yesterday the person who has been hindering your growth in this company pass