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The Big Bang Theory – Leonard Meets Sheldon

Level 5The Big Bang Theory4:09

Step 1: Vocabulary

Meet the key words used in this clip. Mark the ones you already know to focus on the new ones.

  • W
    warn (you) off

    tell (you) to avoid something

  • D
    deranged

    crazy

  • I
    in retrospect

    a review of the past

  • noble gas
    noble gas

    a gas occupying Group 0 of the periodic table

  • R
    radon/ˈɹeɪdɒn/B2

    khí radon

    In this lesson: a radioactive, noble gas

  • Kirk
    Kirk

    the original captain of Star Trek

  • Picard
    Picard

    the second captain of Star Trek

  • barrier
    barrier/ˈbæriər/B1

    rào cản

    In this lesson: obstacle, test

  • D
    daunting/ˈdɔntɪŋ/B2

    đáng ngại

    In this lesson: difficult

  • D
    dibs

    to claim the right to have or do something

  • P
    post-apocalyptic

    after a nuclear war or major disaster

  • P
    procreate

    have children

  • C
    cocky/ˈkɑki/B2

    tự phụ, huênh hoang

    In this lesson: arrogant, over-confident

Tip: Knowing the words before you listen makes the clip far easier to follow.