学英语每周一练（轻松学英语每日一练）

学英语每周一练（轻松学英语每日一练）1.What was the purpose of the egg-dropping activity?Coombe said the project was a "great way for kids to get excited about science".The students used different materials to protect the eggs. The typical materials included cotton balls drinking straws (吸管) cardboard socks and balloons.Josh Addington and Bowen Jiang thought of a creative idea. They built a pyramid out of drinking straws a

阅读下面短文，从各小题所给的四个选项中选出能回答所提问题或完成所给句子的一个最佳答案。

A teacher stood on the top of a ladder truck. It was five stories high. She held an egg that was attached (系) to several balloons and was about to drop it. The students below fixed their eyes on her and held their breath. Would the egg survive the drop?

Welcome to Kelly Coombe's science class at Marsh Junior High in Chico California. Coombe organized this activity to help students better understand the laws of physics.

She divided the 34 students into 17 teams of two people each. Each team designed a structure that would prevent an egg from breaking when dropped from 50 feet (15.25 metres) high.

The students used different materials to protect the eggs. The typical materials included cotton balls drinking straws (吸管) cardboard socks and balloons.

Josh Addington and Bowen Jiang thought of a creative idea. They built a pyramid out of drinking straws and put the egg into a "capsule (胶囊)" on the top of the pyramid. Then they tied a helium-filled balloon (氢气球) to the top to keep the device moving in the right direction and put a water balloon at the bottom to allow the device to lightly land on the ground.

"Our egg survived!" Jiang proudly told The Enterprise Record. But not all the eggs were so lucky. As Coombe dropped the eggs some of them fell like stones and smashed on the ground. About half of the eggs survived.

Coombe said the project was a "great way for kids to get excited about science".

1.What was the purpose of the egg-dropping activity?

A. To protect an egg from breaking when dropped.

B. To design stronger houses.

C. To help the students understand the laws of physics.

D. To break lots of eggs at the same time.

2.What did the students do before the activity?

A.They looked for a strong egg to drop.

B.They designed a structure to protect the egg.

C.They learned the laws of physics.

D.They did other experiments with eggs at home.

3.What does the colored word "smash" in the sixth paragraph mean?

A. break B. land C. hit D. roll