Scientists around the world are racing to create and test vaccines （疫苗） to help protect people against the novel coronavirus （新冠病毒）． They are making progress， but it will be quite a while before any vaccines are ready．
There are many different ways to make vaccines． At least 115 different vaccines for the novel coronavirus are being developed around the world right now． Many of them may not work or may have side effects that can be dangerous． That is why testing is very important．
Before a vaccine is ever tested on humans， it's first tested on animals to make sure it seems safe． Testing the vaccine on humans is done in several different phases （阶段）． In Phase 1， a small group of people are given small amounts of the vaccine to see if it has any bad effects． Phase 2 still tests the vaccine's safety， but it's mainly a test to see if the vaccine seems to work． If Phase 2 goes well， the vaccine can begin Phase 3．During Phase 3，the vaccine is tried on a much larger group of people to see how well it works．
Because of the serious and worldwide impact （影响） of the novel coronavirus， there is huge pressure to develop a working vaccine quickly．It normally takes seven or more years to develop a safe vaccine that works well． Now drug companies are hoping to create working vaccines in 12 or 18 months．
But health experts also warn that rushing too much could be dangerous． A vaccine with harmful effects could cause more problems than it solves．
（1）According to the passage， the scientists who are making vaccines are ．
A． hard﹣working and careful
B． patient and easy﹣going
C． kind and curious
D． caring and brave
（2）How long does it take to create working vaccines in the usual way？
A． Less than six years．
B． More than ten years．
C． Twelve to eighteen months．
D． About seven years．
（3）Which of the following is TRUE？
A． There are only three phases in testing vaccines．
B． Working vaccines must be created in a short time．
C． Vaccines have already been developed．
D． Rushing too quickly in creating vaccines may bring more problems．
（4）What's the best title of the passage？
A． Rush for a Vaccine
B． Fight against the Disease
C． Protect People against the Virus
D． Create Working Vaccines
Everyone gets angry. Many things may make you angry. Maybe your teacher gave you too much homework. Or maybe a friend borrowed your favorite video game and then broke it. You may get angry when something doesn’t go your way. Maybe you get mad at yourself when your team loses an important game. Or maybe you become a road rager（路怒族） when a driver accidentally cuts in front of you. That makes you angry!
You need to know what to do with your anger. Here are some things you can do when you feel angry:
Talk to a friend you can trust.
Count to 10.
Get or give a hug.
Take some exercise.
Draw a picture of your anger.
Play a video game.
Run around the outside of the house five times as fast as you can.
Sing along with the CD player.
Pull weeds in the garden.
Think good thoughts (maybe about a fun vacation or your favorite sport.)
Take a bike ride, go skating, play basketball – do something active!
Never getting angry is impossible. But when you’re angry, you can do something and it can make things better or worse. Don’t let anger be the boss of you. Take charge of it!
In the passage, the writer gives us _____ pieces of advice.
| A．ten | B．eleven | C．twelve | D．thirteen |
The underlined part “when something doesn’t go your way” probably means ______.
| A．when you get lost |
| B．when you are on a wrong way |
| C．when you meet with something difficult |
| D．when things don’t go as you imagine |
If you run around the outside of your house five times, and your house is a circle of 260 meters, so you’ll run _______.
| A．1,300 meters | B．1,300 kilometers |
| C．1,360 meters | D．1,360 kilometers |
As for doing with anger, which of the following is NOT mentioned in the passage?
| A．Talk to a friend you believe. |
| B．Get a hug. |
| C．Pull weeds in the garden |
| D．Have a fight with a friend |
The passage is mainly about ______.
| A．how to deal with your anger |
| B．letting anger be the boss of you |
| C．drinking more water when you’re angry |
| D．doing something active when you’re angry |
阅读理解
This was a very busy week. This Friday was Mother’s Day, and there were lots of activities at school this week.
5/7 Tues.
Johnson, our new music teacher, taught us “Mother”, a beautiful song about our love for mothers. And Miss Alice told us the story of Mother’s Day. The idea of a day for mothers was first given by Miss Anna of Philadelphia（费城）. As a result of her hard work, the celebration of the first American Mother’s Day was held in Philadelphia on May 10, 1908. Soon the holiday became popular all over the country and around the world.
5/8 Wed.
We practiced “Mother” today. We prepared some songs and games to show our love to our mothers. This was going to be a special present for our parents on Friday.
5/9 Thurs.
It took us two hours to decorate（装饰）our classroom for PAT DAY. I was tired. Mom was also nervous. It would be the first time for her to meet our teachers. She had always been nervous about talking to teachers since she was a child. That’s funny!
5/10 Fri.
There were many activities at school. One of them was PAT DAY. Mom and Dad both came to the school. I was a little nervous. What had our teachers told them?
AllenWho first gave the idea of a day for mothers?
| A．Johnson | B．Miss Alice |
| C．Miss Anna | D．Allen. |
What did the class do on Wednesday?
| A．Decorated the classroom |
| B．Sang their thanks to their parents. |
| C．Bought presents for their parents. |
| D．Practiced activities for Mother’s Day. |
Why did Allen’s mother feel nervous?
| A．Allen did not do well at school |
| B．She was afraid of talking to teachers. |
| C．Allen’s father was going to the school, too. |
| D．She had to sing a song in front of the class. |
The above passage is taken from a _____.
| A．newspaper | B．diary |
| C．test paper | D．notebook |
What does “PAT DAY” mean?
| A．The day for students to make tests. |
| B．The day for teachers to practice teaching |
| C．The day for parents to meet teachers at school |
| D．The day for students to sing songs. |
Do you know something about tree rings? Do you know they can tell us what the weather was like, sometimes even hundreds of years ago?
A tree will grow well in a climate with lots of sunshine and rainfall. And little sunshine or rainfall will limit the growth of trees by studying the tree rings. For example, to find out the weather of ten years ago, count the rings of a tree from the outside to the inside. If the tenth ring is far from the eleventh ring, then we’re sure that it was sunny and rainy most of that year. If it is near to the eleventh ring, then the climate that year was bad.
Tree rings are important not only for studying the history of weather but also for studying the history of man. Many centuries ago, there lived a lot of people at a place in New Mexico. But now you can find only sand there－no trees and no people. What happened?
A scientist studied the rings of dead trees there. He found that the people had to leave because they had cut down all the trees to make fires and buildings. As all the trees had gone, the people there had to move.
Tree rings can tell ______ according to the passage.
A. whether a tree was strong or not.
B. whether the climate was good or not
C. how tall trees used to be.
If you want to find out the weather of twenty years ago, you should study ________.
A. the twentieth ring
B. the tenth ring
C. the twenty-second ring
What does the underline word “limit” mean?
A. 证实 B. 限制 C. 促进
Which of the following is NOT TRUE?
A. Trees can’t grow well in a climate with little sunshine and rainfall.
B. Tree rings grow far from each other in a bad climate.
C. The people left the place in New Mexico because the land became sand.
The passage mainly tells us ________ .
A. how climate affects the growing of trees
B. the importance of the trees
C. Tree rings can help us study the history of weather and man.
阅读理解
If you’re ready to add more physical activity(体育运动) to your life, here are some tips(建议).
Make physical activity part of your routine, like brushing your teeth or going to work. Try biking to work at least once a week, using the stairs more often, or walking to some places near home. But talk to your doctor before you start an exercise routine, especially if you haven’t been very active or have health problems.
Walking is one of the best fitness(健康) activities. To keep up a routine, you can walk with family members, friends or pets. Count your steps with a step counter(计数器). You can buy one at a sporting goods store. If you don’t have time for one 30-minute walk, break it into three 10-minute walks.
Find an activity that you enjoy, and stay with it. Change it with other activities so you don’t get bored. For example, walk three days a week, and swim or bike on the other days. Join a volleyball or basketball club for fun and exercise. By finding more activities you enjoy, you’ll have a greater chance for success.
The underlined word “routine” probably means “______” in Chinese.
A. 建议 B. 惯例 C. 爱好
What does the writer suggest doing before starting daily exercise?
A. Talking to the doctor.
B. Walking to work.
C. Buying a step counter.
How many tips does the writer mention when talking about the walking activity?
A. Two. B. Three. C. Four.
To avoid getting bored with the same activity, we can ______.
A. break one 30-minute walk into three
B. change the activity we are staying with
C. do the activity with our family members
The passage mainly talks about ______.
A. the ways to count walking steps
B. some health problems we may face
C. some advice on physical activity
We all have our favorite teachers—those who seem truly interested. But what about teachers we don’t know as well or even don’t like much? You can do lots of things to get a good relationship with your teachers.
First, try to be a good student: go to class on time, finish all homework on time, be active in the class and ask questions often.
Second, show an interest in the subject that the teacher teaches. Obviously(显然地), your teachers are really interested in their subjects. Showing the teacher that you care—even if you’re not good at math or French—sends the message that you are a dedicated students. Then the teacher may pay more attention to you.
Third, you can also often have a talk with your teacher when he is free. Use this time to get extra help, ask questions, talk about the subject, or talk about your progress in class. You may be surprised to learn that one-on-one communication for your teacher is a bit more relaxed than lecturing(讲课) in front of the whole class.
根据短文内容，选择最佳答案：
Which of the following is mentioned about a good student?
A. Going to school early.
B. Listening to the teacher.
C. Being active in the class.
Which of the following is NOT mentioned about a good student?
A. Going to class on time.
B. Finishing all homework on time.
C. Giving a gift to the teacher.
The teacher will think you are a dedicated student if you .
A. have the class every day
B. show an interest in the subject
C. ask the teacher for help
What does the underlined word “one-on-one” mean?
A.一个接一个
B. 一对一的
C. 手拉手的
The passage mainly talks about .
A. how to be a good student
B. how to show an interest in the subject
C. how to develop good teacher-student relationships.
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