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问题 单项选择题

在肺炎双球菌感染小鼠的实验中，下列实验结果不正确的是（）

A.注射R型菌后，老鼠不死亡

B.注射S型菌后，老鼠死亡，从小鼠体内能分离出活的S型细菌

C.注射R型菌和热处理的S型菌后，老鼠死亡，从小鼠体内只能分离出活的S型细菌

D.注射S型菌和热处理的R型菌后，老鼠死亡，从小鼠体内能分离出活的S型菌

答案

参考答案：C

完形填空

Many solutions we seek with regard to achieving sustainability(可持续性) are within our reach. That’s the lesson our school’s Environment Club has learned over the past two years. We’ve reduced the amount of our waste at our school by 25 per cent. ___小题1:___ We have the evidence we need to suggest we are making a difference. If you are interested in leading your school on a similar journey of change, here are some tips.

__小题2:___

Examine the garbage can to find out how much of your school’s garbage could be picked out from the waste stream and be reused. We found that more than 80 percent of our waste could have been reused, recycled or composted(制成堆肥).

Prepare dustbins there.

___小题3:___ You will find you can cover the cost of the purchase of the dustbins within a few months simply by selling the bottles and other items you collect.

Compost the waste.

Start a composting system in your school. You may reduce your waste by as much as 50 percent. Be sure to talk with your teachers and your cafeteria staff to get them onside.

Share your success.

Let your community know what you’ve accomplished. __小题4:__ Ask your teachers if you can talk to their classes, let your parent group know what you’re doing, and present a report to the president of your school.

__小题5:___

Whether you spend a few moments in a quiet place or the whole day walking along a beautiful beach, time outdoors will remind you why the work you do for the environment is so worthwhile.

A．Dig in.

B．Reward yourself.

C．Do outdoor activities.

D．They’ll feel proud of you.E. We need to go further, and we will.

F. Invite your friends to join your cause.

G. Make sure every classroom has dustbins for recycling.
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单项选择题

余忆童稚时，能张目对日，明察秋毫，见藐小之物必细察其纹理，故时有物外之趣。
夏蚊成雷，私拟作群鹤舞于空中，心之所向，则或千或百，果然鹤也；昂首观之，项为之强。又留蚊于素帐中，徐啧以烟，使之冲烟而飞呜，作青云白鹤观，果如鹤唳云端，为之怡然称快。
余常于土墙凹凸处，花台小草丛杂处，蹲其身，使与台齐；定神细视，以丛草为林，以虫蚁为兽，以土砾凸者为丘，凹者为壑，神游其中，怡然自得。
一日，见二虫斗草间，观之，兴正浓，忽有庞然大物，拔山倒树而来，盖一癞虾蟆，舌一吐而二虫尽为所吞。余年幼，方出神，不觉呀然一惊。神定，捉虾蟆，鞭数十，驱之别院。

下列对本文语言的分析不正确的一项是( )。

A．“夏蚊成雷”，写出了蚊虫之多，轰鸣之响，并运用了比喻的修辞方法

B．“舌一吐而二虫尽为所吞”，“吐”和“吞”两个动词极为生动地表现了虾蟆捕虫动作的迅速、准确

C．“冲烟飞鸣”的“冲”，让人想见蚊群在烟雾中乱飞乱闯的情状

D．“在唳云端”的“唳”字，让人仿佛听到了鹤翔云端高亢的鸣叫，用词准确
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