第1問

  1. such as
  2. similler to , as well as similar to~ B as well as A
  3. succeeded in succeed in ~ touch⇒touching bring⇒bringing
  4. 科学技術に関する知識への情熱がなければ、私たちはこのような宇宙探査に取り組むことはなかったでしょう。
  5. had it not been for but for without if it have not been for ~

第2問

  1. このような宇宙開発はその後、宇宙デブリの問題を引き起こした。
  2. not work any longer
  3. At present
  4. there are approximately 23,000 pieces of debris larger than a softball and half a million pieces of marble-size debris orbiting Earth
  5. up to
  6. It is now necessary for us to clean up space debris.

第3問

第4問