Question

【題目】閱讀下列短文，從每題所給的A、B、C、D四個(gè)選項(xiàng)中選出最佳選項(xiàng)。C
Are you carrying too much on your back at school? You're not alone. Back experts in the United States are worried that young students are having back and neck problems as a result of carrying too much in their backpacks (schoolbags).
"It hurts my back when I run," said Oberlin Reyes, a student in Virginia. "It's hard to go up the stairs with my backpack, because it's too heavy,"
Oberlin was among students whose backpacks were weighed for a week in a recent study.
They had regular backpacks with two straps(帶子)to carry them, but a number of students with heavy loads had switched to rolling backpacks (which have wheels and can roll on the ground).
Shirley Park, whose backpack weighed 10 kilograms, said she changed to a rolling backpack because she was starting to have back pain.
How much is too much? Experts say students should carry no more than 10 to 15 percent of their own body weight.
A few students had one suggestion to lighten the load: less homework.
P.S. Doctor's advice:
⒈ Lighten the load. Clean out binders(活頁(yè)材料) and take home only the books you need that night.
⒉ Wide straps are better. They send out the weight over your shoulders more evenly(均勻). And be sure to wear both straps rather than hanging the pack over one shoulder.
⒊ Pack smart. The heavier things should be packed closed to the back.
⒌Bend both knees when you pick up the pack ,and don't just bend over at the waist(腰).
（1）The main idea of the passage is __________.
A.The problem of backpacks is worth(值得)studying
B.The problem is made by heavy backpacks
C.The best backpacks are for students
D.How to make students' backpacks lighter
（2）According to Oberlin Reyes and Shirley Park, we know ________.
A.students have to do too much homework
B.students have to carry several backpacks
C.backpacks without wheels are bad for students
D.too much homework leaves students no free time
（3）The underlined expression switched to in the passage perhaps means ________.
A.caught up
B.turned to
C.started to use
D.used for
（4）If students follow the doctor's advice they ________.
A.may lighten their backpacks
B.can learn how to help themselves
C.may feel their backpacks are lighter
D.will know how to wear backpacks

Answer 1

【答案】
（1）D
（2）A
（3）C
（4）B
【解析】短文大意：這篇短文講了現(xiàn)在的學(xué)生背的書包很重。沉重的書包使得他們背疼。學(xué)生們應(yīng)如何減輕書包，醫(yī)生給了一些建議。
（1）此題考查主旨大意。這篇短文內(nèi)容主要講的是學(xué)生怎樣減輕書包重量和醫(yī)生給出減輕學(xué)生書包重量的建議。故選D。
（2）此題考查細(xì)節(jié)理解。根據(jù)這句"It hurts my back when I run," said Oberlin Reyes, a student in Virginia. "It's hard to go up the stairs with my backpack, because it's too heavy,"和這句Shirley Park, whose backpack weighed 10 kilograms,可知書包里的書很多，所以學(xué)生有很多作業(yè)，故選A。
（3）此題考查詞義猜測(cè)題。They had regular backpacks with two straps(帶子)to carry them, but a number of students with heavy loads had switched to rolling backpacks (which have wheels and can roll on the ground). 他們通常用兩個(gè)帶子背著書包。但是現(xiàn)在一些背重書包的學(xué)生已經(jīng)轉(zhuǎn)換為滾動(dòng)書包。從一種方式換為另一種方式，所以是轉(zhuǎn)換，switch to轉(zhuǎn)換為，故選C。
（4）此題推理判斷題。醫(yī)生給的建議不僅可幫助學(xué)生減輕書包的重量，還告訴我們背什么樣的包更舒服。并且還講了怎樣整理重書包和怎樣拿起重的書包。所以對(duì)學(xué)生的幫助很大。故選B。