Planting the right seeds at the right time will not take as lots of efforts as we think.And some easy garden vegetables do grow themselves with little care.Here are four vegetables that are perfect for a backyard garden.

There is really only one important rule for planting green beans — don't plant them too early.They won't survive a frost （霜） which can cause the seeds to become bad.They may also stop producing in the middle of the summer，but if you water them，they will continue to produce once the temperatures start to drop in early fall.The more beans you pick，the more the plant will grow.	Brussels sprouts （抱子甘藍） — this sweet vegetable can be grown in nearly any home garden with rich sunlight.They have a long growing season compared with other vegetables.Their taste improves if they are covered with frost.However，they only bear a few days of cold weather，so be sure to harvest them quickly.
Broccoli（西蘭花）is a cool-weather plant that grows best in spring and fall.If grown in winter to avoid heavy frost，broccoli can also be grown indoors and moved to the garden when temperatures rise.When you grow broccoli，be sure to watch out for pests（害蟲）.If you start seeing pests，just pick them off by hand.	Peas are a great choice for new gardeners.All you need is a container that is at least 10 inches deep and something for the plants to climb.They prefer lower temperatures，and once the heat of summer hits，pea plants will stop producing.If garden space is limited，you can pull them up and replace peas in summer with another crop that likes the heat.

（1）What can you do if you want to harvest more green beans？

C

C

A．Plant the seeds in earliest spring.
B．Avoid watering them in summer.
C．Collect them as often as possible.
D．Keep them warm through autumn.
（2）Which of the following descriptions about Brussels sprouts is true？

B

B

A．They can produce all year round.
B．They can't survive a long cold winter.
C．They can grow well in any garden.
D．They taste better if covered with snow.
（3）What do broccoli and peas have in common （共有的） according to the passage？

A

A

A．They enjoy cool weather.
B．They take up a lot of space.
C．They can deal with frost.
D．They stop growing in summer.