[6-7] Read the following passage and write the answers.
Space technology has advanced greatly, and ⓐ (has decreased / the cost of running a space program and improving it / that / it seems) substantially since ambitious entrepreneurs have joined the adventure.
Challenges remain, but it’s not unreasonable to imagine sending a message from a device equipped with semiconductors that were produced in space.
The space project will ultimately reach a point where adventurous minds and their technological innovations will be able to travel safely to stars beyond the solar system.
The resources required to drive economic activity that have existed far beyond the reach of humanity are becoming much more reachable.
6 Rearrange the words in ⓐ to complete the sentence.
it seems that the cost of running a space program and improving
it has decreased
l
7 Complete the sentence according to the passage.
Without advances in space technology, the resources needed for economic activity
would not be
as reachable as they are now.
l

Assess Yourself

답을 확인하며 이해도를 점검해 봅시다.
Check your understanding
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Show your understanding
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Unit 4를 학습하면서 새롭게 배운 내용을 정리해 봅시다.