Question

NASA has opened the door to the next generation of space discovery by announcing great plans for a base for humans to live on the surface of the moon forever.
The project to build a base on the moon will begin soon after 2020, with astronauts living there within four years.
The project comes after several excellent scientists and environmentalists asked humans to look beyond Earth to ensure the survival of the species (物種).
Eventually, the moon will be a base for humans to explore the solar system and one day land on Mars.
NASA began planning for the first moon landing since 1972 when George Bush, the US president, announced his new plan for space exploration four years ago.
NASA has already talked about the design of the Orion spacecraft that will replace the old space shuttle fleet in 2010.
The plan for the moon base, however, is the first detailed explanation of how NASA intends to prepare for the first manned exploration of deep space and a possible Mars mission within 30 years.
Scientists also believe that the south pole on the moon contain rich natural gases such as the rare helium-3 that could be used as fuel for the generation of nuclear power. Besides, teams of astronauts living there for six months at a time would mine for hydrogen and oxygen to make water and possibly rocket fuel

1. 1.
   When was the plan to explore space first announced according to the passage?
   1. A.
      In 1972
   2. B.
      In 1950
   3. C.
      In 1968
   4. D.
      In 2020
2. 2.
   The reasons why NASA has begun the plan to explore space include the followings except ______
   1. A.
      to protect Earth
   2. B.
      to explore deep space
   3. C.
      to finish Mars mission
   4. D.
      to show how powerful the USA is
3. 3.
   In the future, when people fly to the moon, they will probably not bring with them too much ______
   1. A.
      hydrogen
   2. B.
      food
   3. C.
      oxygen
   4. D.
      water
4. 4.
   The passage mainly talks about ______
   1. A.
      the USA’s new plan for space exploration
   2. B.
      how to build a base on the moon
   3. C.
      why to ensure the survival of the species
   4. D.
      where to get new natural resources

Answer 1

CDDA
試題分析：本文敘述了美國對于太空探險的計劃，一是為了保護地球，二是完成美國的火星使命。三是更進一步探險太空。讓地球可以成為人們居住的地方。
1.細節(jié)理解題。根據(jù)NASA began planning for the first moon landing since 1972 when George Bush, the US president, announced his new plan for space exploration four years ago.第一次宣布時的時間是1968年，故選C。
2.細節(jié)理解題。根據(jù)announcing great plans for a base for humans to live on the surface of the moon forever.和The plan for the moon base, however, is the first detailed explanation of how NASA intends to prepare for the first manned exploration of deep space and a possible Mars mission within 30 years.只有選項D沒有提到，故選D。
3.細節(jié)理解題。根據(jù)teams of astronauts living there for six months at a time would mine for hydrogen and oxygen to make water and possibly rocket fuel.故選D。
4.主旨大意題。根據(jù)本文主要談論的是美國對于太空探險是計劃，故選A。
考點：科普類短文閱讀。
點評：做此類題目時，首先要搞清是問某一段還是全文的大意，可利用文中主要信息來把握文脈，進行綜合歸納，概括文章的主題。如有標題，標題中的蘊含的信息往往是關鍵信息。另外，任何一篇文章都是圍繞某個主題展開的，因此，許多文章中最明顯的特點之一是有一個反復出現(xiàn)的中心詞，即高頻詞，也叫做主題詞。抓住了它，便容易抓住文章的中心。