3． Popular destinations have seen an increase in incidents involving tourists in recent years.Reports of a man damaging the Colosseum in Rome （羅馬圓形大劇場） show that behavior has worsened even in places that rarely had problems in the past.
What's behind these acts？One answer is social media.Instagram and TikTok have made it easy to find"hidden diamond"restaurants and discover new destinations to add to your travel list.But this way of travel planning has had other consequences.
It is known as social proof when we look to the behaviors of others to justify our own actions.Now，travelers also look to social media for proof of how others behave while they go pleasure-seeking on vacations.If others are
throwing caution to the wind while on vacation，this can cause a domino（多米諾） effect of bad behavior.
Besides，because tourists are often sheltered in hotels away from local communities，they might wrongly think that traveling to a place far from home is an opportunity for consequence-free bad behavior.They underestimate or ignore the effect their actions can have on local communities.
In response to tourist misbehavior，the island of Bali，a famous tourist destination in Indonesia，introduced new guidelines for visitors in June 2023.These include rules about proper behavior in the protected temples，around the island and with locals，and respecting the natural environment.
Tourists now need a license to rent motorbikes，and can not set foot on any mountain or volcano in Bali due to the nature-protection laws.Besides，travelers must only stay in registered hotels，which will impact a number of Airbnb properties.
Other destinations have taken similar steps.Iceland，Hawaii，and Costa Rica have required visitors to obey local laws and custom.Where such efforts aren't successful，some places such as Thailand's famous Maya Bay have taken it further and fully closed to tourists，at least temporarily.
（1）What is a reason behind what tourists have done in recent years？
A.They misjudge the results.
B.They needn't obey the rules.
C.They're misled by the locals.
D.They can't accept the custom.
（2）What does"throwing caution to the wind"in paragraph 3 mean？
A.Acting immediately.
B.Exploring bravely.
C.Wandering aimlessly.
D.Behaving wildly.
（3）What can tourists do in Bali from June 2023 on？
A.Visit a temple with respect.
B.Climb up the volcano.
C.Rent motorbikes as wished.
D.Stay in an Airbnb house.
（4）Why do the tourist destinations take measures against the tourists？
A.To reduce the influence of social media.
B.To set a limit on the number of visitors.
C.To restrict tourists' improper behavior.
D.To prevent tourists from being injured.
