Question

lesson 10 practice book
name date
past time verbs with -ed
jellies
grammar: verbs in the present, past, and future
some verbs name actions that are happening now. other verbs name actions that happened before now, or in the past. add -ed to most verbs to show that the action happened in the past.
yesterday the jellyfish (float, floated) in the water.
thinking question
when does or did the action happen?
read each sentence. choose the verb that tells about the past. then rewrite the sentence.

1. fish (pass, passed) by the jellyfish.
2. sea turtles (splashed, splash) near the fish.
3. whales (leap, leaped) over the sea turtles.
4. the sharks (watched, watch) the animals move.

Explanation:

<pre_analysis>
{
"quality": "clear",
"question_count": 4,
"skills_matched": [
"direct_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [],
"new_concepts": [
"Past Tense Verbs",
"Regular Verbs"
],
"current_concepts": [
"Past Tense Verbs",
"Regular Verbs"
]
}
</pre_analysis>

<reasoning>

Identify past tense verbs with "-ed"

To show that an action happened in the past, regular verbs add "-ed".

• For sentence 1: "pass" becomes "passed".
• For sentence 2: "splash" becomes "splashed".
• For sentence 3: "leap" becomes "leaped".
• For sentence 4: "watch" becomes "watched".

Rewrite the sentences

Using the identified past tense verbs, rewrite each sentence fully.

• Sentence 1: Fish passed by the jellyfish.
• Sentence 2: Sea turtles splashed near the fish.
• Sentence 3: Whales leaped over the sea turtles.
• Sentence 4: The sharks watched the animals move.

</reasoning>

<answer>

Question 1

Fish passed by the jellyfish.

Question 2

Sea turtles splashed near the fish.

Question 3

Whales leaped over the sea turtles.

Question 4

The sharks watched the animals move.
</answer>

<post_analysis>
{
"subject": "Others",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Others",
"English Grammar",
"Past Tense Verbs"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 4,
"skills_matched": [
"direct_cot",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [],
"new_concepts": [
"Past Tense Verbs",
"Regular Verbs"
],
"current_concepts": [
"Past Tense Verbs",
"Regular Verbs"
]
}
</pre_analysis>

<reasoning>

Identify past tense verbs with "-ed"

To show that an action happened in the past, regular verbs add "-ed".

• For sentence 1: "pass" becomes "passed".
• For sentence 2: "splash" becomes "splashed".
• For sentence 3: "leap" becomes "leaped".
• For sentence 4: "watch" becomes "watched".

Rewrite the sentences

Using the identified past tense verbs, rewrite each sentence fully.

• Sentence 1: Fish passed by the jellyfish.
• Sentence 2: Sea turtles splashed near the fish.
• Sentence 3: Whales leaped over the sea turtles.
• Sentence 4: The sharks watched the animals move.

</reasoning>

<answer>

Question 1

Fish passed by the jellyfish.

Question 2

Sea turtles splashed near the fish.

Question 3

Whales leaped over the sea turtles.

Question 4

The sharks watched the animals move.
</answer>

<post_analysis>
{
"subject": "Others",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Others",
"English Grammar",
"Past Tense Verbs"
]
}
</post_analysis>