填空题。根据句意用所给动词的适当形式填空（每小题1分，共5分）
My mother enjoys _________(dance) very much.
It takes me 2 hours (do) my homework every day.
Listen! Who (play) the piano in the classroom?.
Some dogs just don't know how (have) fun.
We plan ______(go) swimming this weekend.
| without protect goal harmful make warn quick nervous when danger |
When people hear the word stress，they usually think of something bad．However，stress can have several benefits（益处）for the body and mind．To begin with，people may feel stressed（51） there is something important to do．For example，some students are stressed before a big test．The stress might make them feel （52） ，but it also makes them focused．This type of stress can help people work efficiently（高效地）to meet their （53） ．
Another way stress benefits us is by keeping us healthy．Scientists who study stress learnt a little stress can （54） the immune system（免疫系统）stronger．When your body learns to respond （反应）to some stress，it's able to （55） you better from illness．
The final way that stress benefits us is by helping us respond to （56） ．If you see a car coming around the corner too fast，you might experience stress．This stress sends a message （57） your brain of danger，allowing your body to respond （58） ．You may not be able to jump out of the car's way soon enough
（59） the stress．
Of course，too much stress is （60） to our bodies and minds．But the right amount of stress makes us more efficient，healthier and safer．
Each one of us shares this planet with seven billion others．And we all need （36） : ．People and products need to move from city to city and country to country．However，we all know（37） most cars，motorcycles，boats and planes cause air pollution．They are also（38） ．This is a serious problem in many cities．（39） inventors are coming up with creative ideas to try to reduce the pollution and noise．
In many cities around the world，motorcycles are very（40） ．Now Vietnam has around 33million motorcycles and China has almost 120 million．Motorcycles are a faster and cheaper way to get around a city than（41） ．Yet air pollution is a growing problem．In large cities，people（42） it is difficult to breathe．To solve these problems，a U．S．company designed an environmentally friendly motorcycle，It uses electricity as fuel（燃料）．As a result，there is（43） pollution．It's also quiet and fast．This makes （44） a good choice for getting around a city．
The Italian city of Venice is a city with only a few（45） ．There are no cars in the city center．（46） cars，water taxis and buses carry people along the city's canal（运河）．However，they cause pollution，（47） to the water．English engineers Dick and Jem designed a solar﹣powered（太阳能）water taxi．The water taxi
（48） run for a day after being recharged（充电）．
Planes also cause air and noise pollution．Designing an environmentally friendly airplane is a real （49） ．Some airplane companies have （50） to solve the problems．Swiss engineers have gone one step further．They developed a solar airplane．This plane holds the world record for the longest solar﹣powered flight﹣1，541 kilometers from Arizona to Texas in America．
| 36．A．air |
B．food |
C．transportation |
D．communication |
| 37．A．how |
B．why |
C．when |
D．that |
| 38．A．noisy |
B．dirty |
C．fast |
D．expensive |
| 39．A．Since |
B．So |
C．Because |
D．Although |
| 40．A．popular |
B．valuable |
C．dangerous |
D．safe |
| 41．A．bikes |
B．subways |
C．buses |
D．cars |
| 42．A．explain |
B．complain |
C．doubt |
D．promise |
| 43．A．much |
B．some |
C．no |
D．more |
| 44．A．them |
B．you |
C．us |
D．it |
| 45．A．rivers |
B．roads |
C．tourists |
D．people |
| 46．A．Instead of |
B．Thanks to |
C．Because of |
D．As for |
| 47．A．probably |
B．only |
C．especially |
D．hardly |
| 48．A．must |
B．can |
C．should |
D．need |
| 49．A．question |
B．job |
C．decision |
D．challenge |
| 50．A．disagreed |
B．refused |
C．started |
D．remembered． |
| lone worry much try health piece hungry advice time |
A lot of people wish to be slim（苗条），but at the same time they are （1） about their health．In fact，it is important for everyone to （2） weight healthily，but how you do it？Here's some good（3） ．
★Drink plenty of water and eat a（n）（4） diet．If you feel like eating snacks（零食），drink a glass of water first．If you are still（5） after 15 minutes，then it's time for a light snack．（6） to stay away from food with high calories（卡路里），such as sweets and fast food．
★Do not eat（7） than you can consume（消耗）．People get fat because they cannot consume all the calories that they get．So（8） how many calories you really need is very important．
★Take enough exercise．The"333"is good for you﹣exercise 3（9） a week，for at least 30 minutes at a time，and your pulse rate（脉搏率）should be more than 130 after exercising．
Keep the three（10） of advice in mind and follow the advice．Then you'll surely have a slim and strong body．
You may think there is only sand in the desert（沙漠） of the world，（1） it is not true．In the desert，as we know，there is a little（2） ，but it is not（3） for most plants．Still we can see some plants live in the desert．
There is（4） in some places in the deserts．We call these places oases（绿洲）．In the oases，there are villages and towns．People grow all kinds of eropa in the fields there．
People（5） live outside the oases．They have camels，sheep and other animals．These animals depend on the desert plants for their food and do not need （6） water．
The aninmals are useful to the desert people in many ways．They eat the meat and drink the milk of the animals．They use the camels for carrying water，food，and something else．
The people of the desert have to keep moving from place to place．They must always （7） _ grass or desert plants for their animals．When there is no more food for their animals，they move to （8） place．The desert people are（9） ．No man in the desert would ever（10） to help the people in trouble and give them food and water．
| （1）A． and |
B． but |
C． or |
D． so |
| （2）A． rain |
B． rains |
C． wind |
D． winds |
| （3）A． well enough |
B． enough well |
C． good enough |
D． enough good |
| （4）A． sand |
B． plants |
C． woods |
D． water |
| （5）A． also |
B． too |
C． either |
D． still |
| （6）A．a little |
B． too many |
C． too much |
D． some |
| （7）A． look at |
B． look for |
C． look up |
D． look after |
| （8）A． other |
B． the other |
C． others |
D． another |
| （9）A． well |
B． friend |
C． friendly |
D． carefully |
| （10）A． agree |
B． refuse |
C． promise |
D． want |
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