根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    Taking good notes is a time-saving skill that will help you to become a better student in several ways. ____ Second, your notes are excellent materials to refer to when you are studying for a test. Third, note-taking offers variety to your study time and helps you to hold your interest.

    You will want to take notes during classroom discussions and while reading a textbook or doing research for a report. ____ Whenever or however you take notes, keep in mind that note-taking is a selective process. ____ The following methods may work best for you.

●Read the text quickly to find the main facts and ideas in it.

●Carefully read the text and watch for words that can show main points and supporting facts.

● Write your notes in your own words.

●____

● Note any questions or ideas you may have about what was said or written.

    As you take notes, you may want to use your own shorthand(速记). When you do, be sure that you understand your symbols and that you use them all the time. ____

A. Use words, not complete sentences.

B. There are three practical note-taking methods.

C. You must write your notes on separate paper.

D. Otherwise, you may not be able to read your notes later.

E. you will also want to develop your own method for taking notes.

F. That means you must first decide what is important enough to include in your notes.

G. First, the simple act of writing something down makes it easier for you to understand and remember it.

this和thanks中的th发音相同。

以下选项中，属于人体抵御病原体的第三道防线的是（  ）

阅读下文，回答问题。

       保尔背上又挨了一拳，被推进了一间黑屋子，伸出的两手撞在墙壁上。他摸来摸去，摸到一个木板床似的东西，坐了下来。他受尽了折磨和毒打，心情十分沉重。

       保尔完全没有想到会被捕。“佩特留拉匪徒怎么会知道的呢？压根儿没人看见我呀！现在该怎么办呢？ A 在哪儿呢？”

       保尔是在克利姆卡家同水兵  A  分手的。他又去看了谢廖沙， A 就留在克利姆卡家，好等天黑混出城去。

      “幸亏我把手枪藏到老鸹窝里去了，”保尔想。“要是让他们翻到，我就没命了。但是，他们怎么知道是我呢？”这个问题叫他伤透了脑筋，就是找不到答案。

       佩特留拉匪徒并没有从柯察金家里翻到什么有用的东西。衣服和手风琴被哥哥拿到乡下去了。妈妈也带走了她的小箱子。匪兵们翻遍各个角落，捞到的东西却少得可怜。

       然而，从家里到司令部这一路上的遭遇，保尔却是永远忘不了的。漆黑的夜，伸手不见五指。天空布满了乌云。匪兵们推搡他，从背后或两侧对他不停地拳打脚踢，毫不留情。

       保尔昏昏沉沉地木然向前走着。

       门外有人在谈话。司令部的警卫就住在外间屋。屋门下边透进一条明亮的光线。保尔站起身来，扶着墙壁，摸索着在屋里走了一圈。在板床对面，他摸到了一个窗户，上面安着结实的参差不齐的铁栏杆。用手摇了一下——纹丝不动。看样子这里以前是个仓库。

       他又摸到门口，停下来听了听动静。然后，轻轻地推了一下门把手。门讨厌地吱呀了一声。“妈的，真活见鬼！”保尔骂了一句。

       从打开的门缝里，他看见床沿上有两只脚，十个脚趾叉开着，皮肤很粗糙。他又轻轻地推了一下门把手，门又毫不留情地尖叫起来。一个睡眼惺忪、头发蓬乱的家伙从床上坐了起来。他用五个手指头恶狠狠地挠着生满虱子的脑袋，懒洋洋地扯着单调的嗓音破口大骂起来。骂过一通之后，摸了一下放在床头的步枪，有气无力地吆喝说：“把门关上！再往外瞧，就打死你……”

       保尔掩上门，外面房间里响起了一阵狂笑声。

       这一夜保尔翻来覆去想了许多。他柯察金第一次参加斗争，就这么不顺利，刚刚迈出第一步，就像老鼠一样让人家捉住，关在笼子里了。

       他坐在那里，心神不宁地打起瞌睡来。这时候，母亲的形象在脑海中浮现出来：她面孔瘦削，满脸皱纹，那双眼睛是多么熟悉，多么慈祥啊！他想：“幸亏妈不在家，少受点罪。”

       从窗口透进来的光线照在地上，映出一个灰色的方块。

       黑暗在逐渐退却。黎明已经临近了。