かと思(おも)うとno sooner than, as soon as, immediately after, at the thought of, when I think about

彼(かれ)が浮気(うわき)したかと思(おも)うとゾワっとします。

I feel chills at the thought of him cheating. {no sooner than, as soon as, immediately after, at the thought of, when I think about}

爆発(ばくはつ)音(おん)がなったかと思(おも)うと辺(あた)りが明(あか)るくなった。

As soon as I thought there was an explosion, the surroundings lit up. {no sooner than, as soon as, immediately after, at the thought of, when I think about}

父(ちち)が仕事(しごと)で頑張(がんば)っているかと思(おも)うと僕(ぼく)も頑張(がんば)ろうと思(おも)える。

When I think about my father working hard at his job, I feel motivated to do my best too. {no sooner than, as soon as, immediately after, at the thought of, when I think about}

彼(かれ)は商品(しょうひん)を手(て)に取(と)ったかと思(おも)うとそのまま走(はし)って店外(てんがい)へと逃(に)げました。

No sooner than he picked up the product, he ran out of the store with it. {no sooner than, as soon as, immediately after, at the thought of, when I think about}

叱(しか)りつけた生徒(せいと)が反省(はんせい)しているかと思(おも)うとまたふざけだしたので呆(あき)れました。

No sooner than I thought the student I scolded was reflecting on his actions, he started fooling around again, which left me dumbfounded. {no sooner than, as soon as, immediately after, at the thought of, when I think about}