下列关于基因突变的叙述中，正确的是：[ ] A．亲代的基因突变一定能够传递给后代
题型：选择题
问题：
下列关于基因突变的叙述中，正确的是：[ ]
A．亲代的基因突变一定能够传递给后代
B．子代获得突变基因一定能改变性状
C．基因突变一定由人为因素诱发
D．突变基因一定有基因结构上的改变
题型：选择题
阅读理解
When you are feeling unhappy or forget how great you are, these are six ways to make you feel
good about yourself.
1) Look in the mirror and say to yourself, "I am a special person and there's no one in the world
like me. I can do anything!" It may not sound so good, but it really works!
2) Do something nice for someone. Helping others always makes you feel good.
3) Smile! Be friendly to people you meet. Look for the good things in your friends and family.
4) Learn something new! Have you always wanted to decorate(装饰) your own room or learn
how to swim? New challenges(挑战) are fun and give you a sense of accomplishment (成就感)
when you have finished.
5) Read and start a diary. Turn off the TV and let your imagination fly! Write down your thoughts,
dreams or anything you want! Writing always helps to express your feelings.
6) Stay with your family. We all need our family time. Talk with you Mum or Dad or maybe even
your cousin.
1. According to the passage, when you are helping others, you will_________.
A. be special.
B. be sure.
C. be nice.
D. be remembered.
2. Which of the following should you say "NO" to when you are unhappy?
A. You should always look for the good things in others.
B. Stay alone at home as much as possible.
C. Learn something new and go for it!
D. Keep a diary to express your feelings
.
3. The best title for the passage is ______________.
A. Do Your Best
B. Six Ways to Feel Good About Yourself
C. It's Never Too Late to Learn
D. Always Smile to Yourself