高手賜教。

1. 翻譯：Ross注意到，那些在戰(zhàn)地醫(yī)院里并沒(méi)有患上瘧疾的病人，在開(kāi)放式病房里要比在窗子和紗門(mén)關(guān)閉的病房里患上這種致命疾病的可能性更大。

2. 結(jié)構(gòu)劃分：
1）主句為：主語(yǔ)(Ross) + 謂語(yǔ)(overserved) + 賓語(yǔ)(從句)that...。
2）賓語(yǔ)從句的主干是：主語(yǔ)（patients）+ 系動(dòng)詞（were）+ 表語(yǔ)（more likely）+ 表語(yǔ)補(bǔ)足語(yǔ)（to develop the deadly disease）.
其中in the field hospital和who did not have malaria都是后置定語(yǔ)，修飾主語(yǔ)patients；
in the open wards為賓語(yǔ)從句的地點(diǎn)狀語(yǔ)；
3）than后面是一個(gè)比較狀語(yǔ)從句，該從句的主干（patients were likely to develop the deadly disease）都被省略，只剩下（和前面的in the open wards相對(duì)應(yīng)的）地點(diǎn)狀語(yǔ)in wards。
而with closed windows or screens則是后置定語(yǔ)，修飾其前的wards.

3. 該句的完整寫(xiě)法為：
Ross observed that patients in the field hospital who did not have malaria were more likely to develop the deadly disease in the open wards than (patients were likely to develop the deadly disease) in wards with closed windows or screens.

游戲體驗(yàn)不好，一般是顯卡不行，建議升級(jí)