答案解析：

Section C Compound Dictation
36. 答案：ranging
解析：此處需要分詞作定語(yǔ)，range from...to在此處表示“包括……和……”。
37. 答案：principal
解析：此處需要形容詞作定語(yǔ)，注意與音近詞principle區(qū)分開(kāi)。
38. 答案：enrolled
解析：此處的謂語(yǔ)動(dòng)詞要用過(guò)去式，表示“入學(xué)，參加，成為成員”，注意en和詞尾-ed。
39. 答案：paid
解析：此處的謂語(yǔ)動(dòng)詞仍要用過(guò)去式，短語(yǔ)pay off在此處表示“成功，有回報(bào)”。
40. 答案：resolve
解析：根據(jù)空格前面的to可知此處需要?jiǎng)釉~原形。
41. 答案：channel
解析：此詞注意雙寫(xiě)n。
42. 答案：participating
解析：此處需要分詞作定語(yǔ)，participate in表示“參與”。
43. 答案：offered
解析：根據(jù)are和by可知此處需要過(guò)去分詞表示被動(dòng)。不要誤聽(tīng)成afford和effort。
44. 標(biāo)準(zhǔn)答案：But it shows that scientists can benefit from acquiring new skills at any stage of their career
聽(tīng)音關(guān)鍵：scientists, benefit from, new skills, career
答案重構(gòu)：But it shows that it will do scientists good if they get new skills in their career
畫(huà)龍點(diǎn)睛：賓語(yǔ)從句的主謂結(jié)構(gòu)很重要，可以先記錄下來(lái)，然后補(bǔ)充主句。
45. 標(biāo)準(zhǔn)答案：Classes are kept relatively small, usually about 20 people, providing students with the opportunity to get hands-on experience
聽(tīng)音關(guān)鍵：Classes, small, 20, opportunity, hands-on experience
答案重構(gòu)：Classes are usually small with about 20 people, giving students the opportunity to get hands-on experience
畫(huà)龍點(diǎn)睛：插入語(yǔ)可以用短語(yǔ)代替，動(dòng)詞可以簡(jiǎn)化。
46. 標(biāo)準(zhǔn)答案：If you wanted to do your own experiments at two in the morning there was no problem finding people happy to help you and machines ready to use
聽(tīng)音關(guān)鍵：experiments, two in the morning, no problem finding people, machines
答案重構(gòu)：If you wanted to do your own experiments at 2:00 a.m., you'll easily find people happy to help you and machines for you to use
畫(huà)龍點(diǎn)睛：抓住主從復(fù)合句中的主謂賓結(jié)構(gòu)，記住邏輯關(guān)系，即使句子再長(zhǎng)也不難寫(xiě)對(duì)。