Question

閱讀下面材料,在空白處填入適當(dāng)?shù)?內(nèi)容(1個(gè)單詞) 或括號(hào)內(nèi)單詞的正確形 式。

      The earth is the only planet that scientists are certain has life. What does the earth have that other planets in our solar system don't? For one thing,the earth is just the right temperature. As 61  third planet from the sun ,

the earth seems to be just the right distance away. The planets that are closer to the sun

are 62 (extreme) hot and their surfaces are baking in the sun. The farthest planets are frozen balls.

     When the earth developed,it 63  (cover) by many gases. The gases caused the earth 64. (be)

hot. But something 65. (amaze) happened. The temperature was just right for thick clouds to form. It rained very hard for a long time. This gave the earth its oceans. Water made 66. possible

for plants to grow. Then the plants created oxygen in the atmosphere,67. the gas -that humans and animals breathe.

Mars is the only planet in the solar system that seems to be anything like the earth. It is 68. (small) than the

earth and it is quite a bit cooler. But it is not too cold for humans. The most unexpected sight on Mars is dried-up river beds. However,it is believed 69. Mars was once much wetter.Does this mean there could have been living things on Mars? Scientists are not  sure,but there 70.(be) no sign so far.

Answer 1

61. the�？疾槎ü谠~。由語(yǔ)境可知，third.在此表順序，故其前應(yīng)用定冠詞the。

62. extremely�？疾楦痹~。設(shè)空處修飾 形容詞hot ,故填副詞extremely (非常) 。 

63. was covered�？疾橐话氵^(guò)去時(shí)的被 動(dòng)語(yǔ)態(tài)。it (指代the earth) 與cover 之間是被動(dòng)關(guān)系，且此處表示過(guò)去的 狀態(tài)，應(yīng)用一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)， 故填 was covered。

64. to be�？疾椴欢ㄊ阶髻e語(yǔ)補(bǔ)足語(yǔ)的 用法。cause sth. to do sth.意為“引起某物做某事”

65. amazing。考查形容詞作定語(yǔ)的用 法'。設(shè)空處修飾something ,故填 amazing (令人吃驚的) 。

66. it�？疾閕t的用法。設(shè)空處作形式賓 語(yǔ)，真正的賓語(yǔ)是for plants to grow , 故填it。

67. which。考查關(guān)系詞。設(shè)空處引導(dǎo)非 限制性定語(yǔ)從句，指代oxygen且在 從句中作主語(yǔ)，故填which 68. smaller�？疾樾稳菰~的比較      級(jí)。由 than可知，此處應(yīng)用形容詞的比較 級(jí)，故填smaller。

69. that�？疾檫B接詞。設(shè)空處引導(dǎo)主語(yǔ) 從句，又因從句成分及意義均完整， 故填that。

70. has been。考查現(xiàn)在完成時(shí)。由so far可知，此處應(yīng)用現(xiàn)在完成時(shí)，故填 has been。