1 . Do you know the following fun holidays?
Yellow Pig Day
The unofficial holiday that falls on July 17 was created in the early 1960s by Princeton mathematics students, David Kelly and Michael Spivak, while they were working on the special properties (属性) of the number 17, which is a prime number (质数) that has significance in mathematics.
Mole Day
It’s celebrated every year with a theme by scientists and chemistry students throughout the United States and around the world between 6:02 am and 6:02 pm (18:02) on October 23 because when written in the month-date format (格式), the date and time 6.02, 10/23 include the digits (数字) in Avogadro’s number (602×1023) in honor of the mole, a measuring unit in chemistry.
Tau Day
This has much to do with Pi Day (圆周率日). It has been held every year since 2010 on June 28. The day began as a way to recognize tau. Tau is equal to 2π or 6.283. In recent years, some mathematicians and physicists have argued for the replacement of pi(π) by tau, but it is not yet widely accepted within the scientific community.
Palindrome Day
Palindrome (回文) is a word or phrase that reads the same backwards as forwards, for example madam. Palindrome Day happens when the day’s date can be read the same way backward and forward. Because date formats vary from country to country, not all dates that are palindromic in one kind of date format are Palindrome Days in another. For instance, April 21, 2024 or 4-21-24 is a palindromic date in the m-dd-yy format, but it isn’t if you write the date as dd-m-yy yy (21-4-2024) or dd-mm-yyyy (21-04-2024).
1. What is special about Mole Day?A.It has a different theme every year. | B.It was created by a scientist. |
C.It’s the oldest of the four holidays. | D.It’s celebrated only in America. |
A.Palindrome Day. | B.Mole Day. | C.Yellow Pig Day. | D.Tau Day. |
A.They’re celebrated several times a year. | B.They each represent a scientific idea. |
C.They are enjoyed mainly by students. | D.They are accepted by governments. |
2 . The saying goes that a dog is man’s best friend, but this companionship isn’t unique to dogs. Even though rabbits are smaller and quieter than dogs, they are also intelligent, outgoing, active, and social and they make great pets. Here are five reasons for adopting (养) a rabbit.
Rabbits are budget-friendly.
Rabbit care is much less expensive than the budget (预算) required for taking care of a dog or cat.
It’s easy to fit a rabbit into the schedule.
Rabbits are awake in the early morning and early evening, and spend most daytime and nighttime sleeping.
Rabbits are clean, quiet, and contained.
Rabbits are clean animals that generally don’t make large messages. Rabbits don’t require as large living spaces as a dog or cat does, so they are apartment-friendly.
Rabbits are intelligent and lovely.
A.Rabbits don’t make loud noises. |
B.And a rabbit requires less care time. |
C.They can always be a good part of the community. |
D.It costs about $50 monthly to feed and care for a rabbit. |
E.This works well for someone with a typical day job schedule. |
F.Rabbits, like dogs, are smart enough to be trained to do all sorts of tricks. |
G.People should make sure they are ready for the responsibility before adopting. |
protect... from, by accident, pull one’s weight, help out, make a difference, set up, turn out, benefit from, break into a smile |
1. Bob has never
2. Penicillin (青霉素) was discovered
3. We should
4. Rose is such a kind girl that whenever she hears that someone is in trouble she will go to
5. The experiment, though they tried their best,
6. For all these years I have been working for others. I’m hoping I’ll
7. If we are to
8. If the learners of online learning cannot control themselves well, they will not
9. Upon arriving home, the little girl saw her birthday presents and
1. Which season is it now?
A.Spring. | B.Summer. | C.Autumn. |
A.Taking a walk. | B.Picking flowers. | C.Eating ice-cream. |
A.He stayed up late last night. |
B.His alarm kept ringing. |
C.He rushed there. |