Iceland has long been identified as having unique environments.Here you can walk and swim between tectonic（地殼構(gòu)造的） plates，bath in geothermal waters，and experience the wild landscapes.Furthermore，these unique environments have attracted the space-science community to use Iceland as one of its test sites for missions travelling to Mars（火星）.
   DAY 1
   Arrive in Reykjavik.
   After check-in，you will visit the geothermal pools of the Blue Lagoon to relax after your flight，before returning to your hotel to freshen up.You will then head to the Aurora Basecamp Observatory，where you will be able to see the northern lights recreated jye.aidoors.In the evening，space expert Niamh Shaw will give the first of two talks on our attempt to establish bases on other planets.
   DAY 2
   After breakfast，you will set out on special vehicles towards Tingvellir National Park，a registered UNESCO world heritage （遺產(chǎn)） site accompanied by Niamh.Here，you will have the opportunity to do something that you can't do anywhere else，the opportunity to swim between the tectonic plates.In the evening，you will enjoy a second talk from Niamh.
   DAY 3
   Today you begin your journey towards the 2020 NASA test site，where the NASA SAND_E Mars Rover is being tested.NASA scientists will be on hand to explain the project，along with updates of the current Mars missions and the most recent findings.
   DAY 4
   In 2019，Iceland Space Agency hosted the ISAGEVR1 Expedition to Grimsv?tn Volcano on top of the Vatnaj?kull Glacier （冰川） to field test the MS1 Mars Analog Spacesuit designed by the NASA/Johnson space centre.We will be working together with the agency to create a unique experience for you today on the glacier.
   DAY 5
   In the afternoon，you will reach the bridge between the continents，spanning a gap in between the two tectonic plates，on your way to Keflavik Airport and your evening flight home.

（1）Who would be most interested in this travel arrangement to Iceland？

B

B

A．Fiction writers.
B．Space enthusiasts.
C．Wildlife protectors.
D．Professional swimmers.
（2）Which days include chances to experience something about Mars？

C

C

A．Day 1 and Day 2.
B．Day 2 and Day 3.
C．Day 3 and Day 4.
D．Day 4 and Day 5.
（3）Which of the following can best promote this tour？

C

C

A． "We hope to offer you a great opportunity to enjoy hiking."
B． "We will let you explore how NASA is a part of everyday life."
C． "We want to help you discover space science through the joy of travel."
D． "We will provide you a chance to experience the culture near the Arctic Circle."