業精於勤，事立於豫

      Cactus plants are quite juicy. Take an aloe, for example. When you cut it open, the mucilaginous gel inside the leaves will flow out. Cactus plants actually hoard moisture in their plant cells __26__ they have some water during extremely dry, drought-like conditions. They are remarkably __27__ to water neglect, but certain signs in the leaves, pads or stems will indicate that the plant is becoming stressed __28__ a lack in moisture. __29__ these signs, along with some education on your plant’s native region and climate, can help indicate the best time for watering cactus plants. Heavy compact, clay soils or those with heavy amounts of organic material __30__ to capture water and can cause rot in cactus roots and lower stems. Plants in full sun tend to dry out more than those in lower light conditions, as do windy or drafty sites.

文意解釋：

Cactus plants are quite juicy. (仙人掌屬植物多汁。)

Take an aloe, for example. (以蘆薈為例。)

When you cut it open, the mucilaginous gel inside the leaves will flow out. (當你把它切開時，裏面的粘液會流出。)

Cactus plants actually hoard moisture in their plant cells __26__ they have some water during extremely dry, drought-like conditions. (仙人掌植物實際上在植物細胞中儲存水分，所以它們在極端乾旱、乾旱的條件下仍保有水分。)

26. (A) although 雖然 (B) why 為什麼 (C) what 什麼 (D) so 所以

They are remarkably __27__ to water neglect, but certain signs in the leaves, pads or stems will indicate that the plant is becoming stressed __28__ a lack in moisture. (它們對水的忽視非常寬容，但是葉子、掌或莖中的某些跡象表明植物由於缺少水分而變得有壓力。)

27. (A) primitive 原始的 (B) shameful 可恥的 (C) tolerant 寬容的 (D) habitual 習慣的

28. (A) due to 由於 (B) according to 根據 (C) as for 至於 (D) bound for 前往

__29__ these signs, along with some education on your plant's native region and climate, can help indicate the best time for watering cactus plants. (認識到這些跡象，以及對你的植物的本地區域和氣候的一些教育，可以幫助指出澆水仙人掌植物的最佳時間。)

29. (A) Recognize (B) To recognize (C) Recognizing (D) Recognized

(原句) When you recognize these signs, along with some education on your plant's native region and climate, can help indicate the best time for watering cactus plants.

省略連接詞及主詞，將 recognize改為主動的分詞構句recognizing

Heavy compact, clay soils or those with heavy amounts of organic material __30__ to capture water and can cause rot in cactus roots and lower stems. (重壓實、粘性土質或含有大量有機物質的土壤往往會捕獲水分，並可能導致仙人掌根和下部莖幹部分腐爛。)

Plants in full sun tend to dry out more than those in lower light conditions, as do windy or drafty sites. (處於充足陽光下的植物往往會比光線較暗的地方乾燥得更多，就像刮風或通風的環境一樣。)

30. (A) refer 參考 (B) tend 傾向 (C) compare 比較 (D) suggest 建議