Understanding the Passage Content

This passage uses an everyday observation – a ship sailing out to sea – as evidence for a fundamental concept: the Earth is a globe. It explains that as a ship moves away, it doesn't just get smaller; instead, parts of it disappear from view progressively. The hull vanishes first, followed by the mast, until the entire ship is hidden. This phenomenon is attributed to the curvature of the Earth. The passage then introduces an analogy involving an orange and a pin to help visualize this effect.

Analyzing Blank 5 Context

Blank number 5 appears in the final sentence of the passage, which aims to connect the analogy (the pin disappearing on an orange) with the initial observation (the ship disappearing at sea). The sentence structure is: "You will see the pin disappear, (5) _________ a ship does on the earth." We need to select a phrase that accurately compares the way the pin disappears to the way a ship disappears, reinforcing the lesson about the Earth's shape.

Evaluating Options for Blank 5

Let's examine the suitability of each option for filling blank 5:

• Option 1: just as
  This phrase is commonly used to draw a comparison or indicate similarity between two actions or situations. The sentence "You will see the pin disappear, just as a ship does on the earth" correctly conveys that the manner in which the pin disappears mirrors how a ship disappears over the horizon due to the Earth's curvature.
• Option 2: alike
  While "alike" signifies similarity, it is not typically used in this grammatical construction to introduce a comparison in this manner. The resulting sentence, "You will see the pin disappear, alike a ship does on the earth," sounds grammatically awkward and unnatural.
• Option 3: by the way
  This expression is used to introduce an additional piece of information or a side note, often unrelated or tangentially related to the main topic. It does not serve the purpose of comparison needed in this sentence.
• Option 4: the same
  Similar to "alike," the phrase "the same" does not fit correctly into the sentence structure to establish the intended comparison. A grammatically correct comparison would require a different structure, such as "...the same way a ship does..."

Conclusion for Blank 5

The most fitting phrase for blank 5 is "just as". It creates a clear and grammatically sound comparison between the pin disappearing on the orange and the ship disappearing at sea. This comparison effectively reinforces the passage's main point about the Earth's spherical shape being observable through the way objects disappear over the horizon.