2020-2021学年度第5期总第804期
Fixing ISS leaks (P6)
邯郸市第一中学 王琪
Lead in
1. What does “ISS” stand for?
International Space Station.

2. Who dwell in space?
Astronauts.

3. What does the ISS usually do with the air?
Its life support system provides oxygen and absorbs carbon dioxide. It releases a small amount of air each day.
Read for main idea
What’s the main idea of the article?
Air leaks, which can be caused be space debris, can happen sometimes on the ISS and are difficult to fix.
Read for details
1. What’s wrong with the ISS recently?
• The air seemed to be leaking at a slightly higher rate than usual.
• The three crew are staying in the Russian segment temporarily.
• NASA tries to find the origin of the leak.

2. Has the air leak ever happened before?
• On Aug 29, 2018, an air leak was discovered.
• A hole measures 2 millimeters.
• Astronauts patched the hole with tape.

3. What can cause holes in the hard surface?
• Space debris with high speed.

4. How do astronauts fix a tiny hole?
• Seal off various sections.
• Find the location.
• Close the leak and check the pressure.

Read for language and grammar
1. Fortunately, six people on board found a hole measuring 2 millimeters in diameter on Soyuz MS-09, a Russian spacecraft temporarily docked (对接) with the ISS.

非谓语：
• measure和hole是主谓关系，因此用动词-ing形式。
• dock和spacecraft是动宾关系，因此用动词-ed形式。

Read for thinking
Do you have any ideas to fix the leaks?