11.答案D
【解析】beneath和under為介詞,后面必需接名詞。down向下地,副詞。below在下方地,副詞,符合句意。
12.答案A
【解析】close與介詞to連用,意為近的。其他介詞不與close搭配。
13.答案D
【解析】horror恐懼;trust信任;pleasure愉快;relief(痛苦、憂慮)解除。to ones relief意為讓某人松了一口氣,最符合句意。
14.答案B
【解析】surround包圍;circle盤旋;observe觀察;view認為。此處選擇circle,最符合句意。
15.答案B
【解析】be familiar with為固定搭配,意為熟悉,排除其他選項。
16.答案C
【解析】本句意為危險還沒過去,與前句形成轉折關系。選項中then表順承,therefore表結果,but表轉折,moreover表遞進。
17.答案A
【解析】根據(jù)句意推斷,空格處所填詞應與when he had做同位語,故moment符合句意。movement運動,idea想法,affair事件。
18.答案D
【解析】following…這個分詞的邏輯主語應為the man,本句意思應為,這個人遵照指令,駕駛飛機朝機場飛去。impression意為印象,information消息,inspections視察,instructions指令。
19.答案A
【解析】as當……的時候,符合句意。unless除非。while當……時候,它引導的從句動作時間比as引導從句動作的時間要長。So因此,表結果,不符合句意。
20.答案C
【解析】本句意為:飛機沿著跑道滑行了很長一段距離后,安全地停下來了。move along是沿著……移動的意思。around在……周圍,over在……之上,above在……上方。只有along符合句意。
二、 Space is a dangerous place, not only because of meteors(流星) but also because of rays from the sun and other stars.
The atmosphere again acts __1__ our protective blanket on __2__ .
Light gets through, and this is essential __3__ plants to make the food which we __4__ .
Heat, __5__ , makes our environments tolerable and some ultraviolet rays(紫外線的) penetrate the __6__ .
Cosmic(宇宙的) rays of various kinds come __7__ the air from outer space,
but __8__ quantities of radiation from the sun are screened off.
__9__ men leave the atmosphere they are __10__ to this radiation;
__11__ their spacesuits or the walls of their spacecraft, if they are inside,
__12__ prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in __13__ .
Doses of radiation are measured in __14__ called“rems (雷目)”.
We all __15__ radiation here on earth from the sun, from cosmic rays and from radioactive minerals.
The“ __16__”dose of radiation that we receive each year is about two millirems; it __17__ according toswheresyou live, and this is a very rough estimate.
北京 | 天津 | 上海 | 江蘇 | 山東 |
安徽 | 浙江 | 江西 | 福建 | 深圳 |
廣東 | 河北 | 湖南 | 廣西 | 河南 |
海南 | 湖北 | 四川 | 重慶 | 云南 |
貴州 | 西藏 | 新疆 | 陜西 | 山西 |
寧夏 | 甘肅 | 青海 | 遼寧 | 吉林 |
黑龍江 | 內(nèi)蒙古 |