Review Unit 4,5,6- TEEN WARRIORS

The sky was completely ________, without a single cloud, making it a perfect day for a picnic.

• thorny

• cloudless

• drenched

• reflective

The engineer designed a house with ________ to collect sunlight and generate electricity for the entire building.

• whirlpools

• solar panels

• whirlwinds

• air vents

His idea was simple but very ________; it helped the company save both time and money.

• competitive

• efficient

• mysterious

• painful

The team’s new invention is based on ________ design, copying how certain animals survive in extreme conditions.

• biomimetic

• synthetic

• spiral

• portable

Before making a final decision, the manager asked everyone to ________ all possible risks and advantages.

• mimic

• consider

• spill

• kneel

After the rescue operation, the firefighter was completely ________, his clothes soaked through from both sweat and water.

• drenched

• portable

• specific

• sustainable

In his speech, the inventor tried to explain the ________ behind his biomimetic design, but some of the audience still found it mysterious.

• insight

• fraction

• seed

• satellite

The student gave a very ________ answer, showing that she had fully understood the complex scientific concept.

• specific

• competitive

• portable

• thorny

The manager explained that the main ________ of the project was to create affordable and eco-friendly housing for low-income families.

• advantage

• possibility

• purpose

• fraction

The detective carefully examined the crime scene, hoping to find at least one ________ that would lead to the suspect.

• coil

• clue

• rope

• apron