Doyouknowwhydifferentanimalsorpests(昆虫)havetheirspecial...
问题详情:
Do you know why different animals or pests(昆虫) have their special colors? Colors in them seem to be used mainly to protect themselves.
Some birds like eating locusts(蝗虫),but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.
If you study the animal life, you’ll find the main use of colors is protecting themselves. bears, lions and other animals move quietly through forests. They cannot be seen by hunters. This is because they have the colors much like the tree.
Have you ever noticed an even more strange act? A kind of fish in the sea can send out a kind of very black liquid(液体) when it faces danger. While the liquid spread over, the enemies cannot find it. And it immediately swims away. So it has lived up to now though it isn’t strong at all.
the passage we can learn that locusts .
A.are small animals
B.change their colors to protect themselves
C.are dangerous to their enemies
can pests with different colors from plants keep out of danger?
A.They run away quickly.
B.Their colors are much like their enemies.
C.They hide themselves in the day and appear at night.
s and lions can keep safe because they .
A.have the colors much like the trees
B.move quickly
C.like brown and gray colors
kind of fish can live up to now because .
A.it is very big and strong
B.the liquid it sends out can help it escape from its enemies
C.the liquid it sends out can kill its enemies
h is the best title for this passage?
A.The Change of Colors for Animals and Pests
B.Colors of Different Animals and Pests
C.The Main Use of Colors for Animals and Pests
【回答】
BCABC
知识点:阅读理解
题型:阅读理解
-
目前,制造*自己航母的呼声越来越高,如图所示是某位网友提供的*航母的设想图.一艘航母的舰载机飞离航母后,则...
问题详情:目前,制造*自己航母的呼声越来越高,如图所示是某位网友提供的*航母的设想图.一艘航母的舰载机飞离航母后,则有()A.航母将上浮,所受浮力减小B.航母将下沉,所受浮力增大C.航母将下沉,所受浮力减小D.航母始终漂浮,所受浮力不变【回答】考点:物体的浮沉条件及其应用.347398...
-
下列各句中,加点的词语使用正确的是( )A.由于有关部门的严肃查处,摩托车非法运营现象暂时消失,但要避免其...
问题详情:下列各句中,加点的词语使用正确的是( )A.由于有关部门的严肃查处,摩托车非法运营现象暂时消失,但要避免其东山再起,必须有制度化的举措。B.日出而作,日落而息,他们就这样日复一日、年复一年地劳作生活在这片广袤的土地上,真是有点令人匪夷所思。C.抗战开始不...
-
估计21的算术平方根的大小在( ) A.2与3之间 B. ...
问题详情:估计21的算术平方根的大小在() A.2与3之间 B. 3与4之间 C. 4与5之间 D.5与6之间...
-
________hislessons,hefailedintheexam.A.Notreviewing B.H...
问题详情:________hislessons,hefailedintheexam.A.Notreviewing B.Havingnotreviewed C.Notreviewed D.Nothavingreviewed【回答】D知识点:非谓语动词题型:选择题...
相关文章
- Weallknowthat2016isconsideredtheyearofsuperheromovies....
- Haveyouevercomplained(抱怨)whylifeissotiring?Doestheskyso...
- Forthosewhostudythedevelopmentofintelligence(智力)inthean...
- It'sinterestingtoseehowpeoplemakeuseofthetimetheyspendo...
- TodayI’dliketoshareoneofmyunforgettableexperiencewithev...
- Dr.Kwasoneofmyfavoriteprofessorsincollege.Hewasuniquebe...
- Howtokeepanearlylostfriendshipalive(七选五) Therearetimesw...
- Ifoverweightpeopleeatlessandtakemoreexercise,they’llso...
- ---Thestudentslookverytiredafterthesportsmeeting.---We...
- HereI'dliketoshareoneofmysurvivalexperienceswithyou.Las...