Question

7．Height is just one of the thousands of features that your genes decide．In fact，because you have parents，your genes provide you a height that usually lands somewhere between the height of each parent．If both your parents are tall，then most probably you will be tall，too．But if you have questions about how tall you're going to b e，ask your doctor if he or she can help you find it out．
      But genes don't decide everything．For example，eating an unhealthy diet can keep you from growing to your full potential．Getting plenty of sleep and enough exercise will help you grow to the expected height．
      No doubt you're wondering how fast you should grow．There's no perfect or right answer．Generally speaking，kids grow about two inches （six centimeters） a year between age 3 and the time when they start puberty．（青春期）．
      Your doctor will know how your growth has been going over the years．How you've been growing up to this point，and what other changes your body may be going through．
       Don't be scared if you have grown a lot in a very short time．Everyone has a growth spurt （高峰） during puberty．The age for starting puberty is about 10 for girls and about 11 for boys．But it can be earlier or later---between 7 and 9 and 15 for boys．
      You'll usually begin to notice that you're growing faster about a year or so after your body starts to show the first changes of puberty．

66．If you want to know how fast and how tall you should grow，B．
A．you should have enough exercise．
B．you can ask doctors for help．
C．you can record your growth during puberty．
67．After reading this passage，we can explainB．
A．how much  sleep time we need．
B．why genes can't decide everything．
C．what healthy diet is．
68．Kids grow aboutCcentimeters your every year from age 3 to puberty．
A.2      B.4    C.6
69．Your height mainly depends on according to the passage．
A．genes           B．diet      C sleep                           
70．Which of the following is not true according to the passage？
A．you may be scared sometimes when you grow too fast．
B．girl's age for starting puberty is usually earlier than that for boys．
C．the time showing the first changes of puberty is never noticed．

Answer 1

分析 短文講了高度是你的基因決定的．事實(shí)上，因?yàn)槟愕母改�，你的基因提供給你一個(gè)高度，通常地每個(gè)父母的身高之間．如果你的父母都高，那么很可能你會高，但是基因并不能決定一切，例如，吃不健康的食物會讓你無法充分發(fā)揮你的潛力，充足的睡眠和足夠的鍛煉可以幫助你達(dá)到預(yù)期的高度．

解答 答案：66．B  細(xì)節(jié)理解題． 根據(jù)文章內(nèi)容Your doctor will know how your growth has been going over the years．你的醫(yī)生會知道你多年來的成長情況．可知你可以尋求醫(yī)生幫助．故選B．
67．B    根據(jù)文章內(nèi)容For example，eating an unhealthy diet can keep you from growing to your full potential．Getting plenty of sleep and enough exercise will help you grow to the expected height．例如，吃不健康的食物會讓你無法充分發(fā)揮你的潛力，充足的睡眠和足夠的鍛煉可以幫助你達(dá)到預(yù)期的高度．可知基因不能決定一切．故選B．
68．C  細(xì)節(jié)理解題．根據(jù)Generally speaking，kids grow about two inches （six centimeters） a year between age 3 and the time when they start puberty．（青春期）．一般來說，孩子們在3歲和他們開始青春期的時(shí)候，一年大約長兩英寸（六厘米）．可知大約長6厘米．故選C．
69．C 細(xì)節(jié)理解題．根據(jù)Getting plenty of sleep and enough exercise will help you grow to the expected height．充足的睡眠和足夠的鍛煉可以幫助你達(dá)到預(yù)期的高度．可知
睡眠影響你的身高．故選C．
70．C  細(xì)節(jié)判斷題．根據(jù)You'll usually begin to notice that you're growing faster about a year or so after your body starts to show the first changes of puberty．你通常會注意到，在你的身體開始顯示青春期的第一次變化后，你的身體發(fā)育快了一年左右．可知在你的身體開始顯示青春期的第一次變化時(shí)會注意到．故選C．

點(diǎn)評 在通讀全文的基礎(chǔ)上，根據(jù)全文大意，展開邏輯思維，瞻前顧后，認(rèn)真觀察選項(xiàng)，仔細(xì)推敲，確定最佳答案．